id stringlengths 36 36 | document stringlengths 3 3k | metadata stringlengths 23 69 | embeddings listlengths 384 384 |
|---|---|---|---|
719c0bec-883e-4450-979e-066d3c9bb9db | Fixed error with "max_rows_to_sort" limit.
#10268
(
alexey-milovidov
).
Get dictionary and check access rights only once per each call of any function reading external dictionaries.
#10928
(
Vitaly Baranov
).
Improvement {#improvement-15}
Apply
TTL
for old data, after
ALTER MODIFY TTL
query. This behaviour is controlled by setting
materialize_ttl_after_modify
, which is enabled by default.
#11042
(
Anton Popov
).
When parsing C-style backslash escapes in string literals, VALUES and various text formats (this is an extension to SQL standard that is endemic for ClickHouse and MySQL), keep backslash if unknown escape sequence is found (e.g.
\%
or
\w
) that will make usage of
LIKE
and
match
regular expressions more convenient (it's enough to write
name LIKE 'used\_cars'
instead of
name LIKE 'used\\_cars'
) and more compatible at the same time. This fixes
#10922
.
#11208
(
alexey-milovidov
).
When reading Decimal value, cut extra digits after point. This behaviour is more compatible with MySQL and PostgreSQL. This fixes
#10202
.
#11831
(
alexey-milovidov
).
Allow to DROP replicated table if the metadata in ZooKeeper was already removed and does not exist (this is also the case when using TestKeeper for testing and the server was restarted). Allow to RENAME replicated table even if there is an error communicating with ZooKeeper. This fixes
#10720
.
#11652
(
alexey-milovidov
).
Slightly improve diagnostic of reading decimal from string. This closes
#10202
.
#11829
(
alexey-milovidov
).
Fix sleep invocation in signal handler. It was sleeping for less amount of time than expected.
#11825
(
alexey-milovidov
).
(Only Linux) OS related performance metrics (for CPU and I/O) will work even without
CAP_NET_ADMIN
capability.
#10544
(
Alexander Kazakov
).
Added
hostname
as an alias to function
hostName
. This feature was suggested by Victor Tarnavskiy from Yandex.Metrica.
#11821
(
alexey-milovidov
).
Added support for distributed
DDL
(update/delete/drop partition) on cross replication clusters.
#11703
(
Nikita Mikhaylov
).
Emit warning instead of error in server log at startup if we cannot listen one of the listen addresses (e.g. IPv6 is unavailable inside Docker). Note that if server fails to listen all listed addresses, it will refuse to startup as before. This fixes
#4406
.
#11687
(
alexey-milovidov
).
Default user and database creation on docker image starting.
#10637
(
Paramtamtam
).
When multiline query is printed to server log, the lines are joined. Make it to work correct in case of multiline string literals, identifiers and single-line comments. This fixes
#3853
.
#11686
(
alexey-milovidov
).
Multiple names are now allowed in commands: CREATE USER, CREATE ROLE, ALTER USER, SHOW CREATE USER, SHOW GRANTS and so on.
#11670
(
Vitaly Baranov
).
Add support for distributed DDL (
UPDATE/DELETE/DROP PARTITION
) on cross replication clusters.
#11508
(
frank lee
). | {"source_file": "2020.md"} | [
-0.040022943168878555,
-0.008208545856177807,
0.05556851997971535,
-0.02394442819058895,
-0.12288439273834229,
-0.03251627832651138,
0.03591061010956764,
0.029223263263702393,
-0.04084581881761551,
0.03367002680897713,
0.030708102509379387,
0.026068467646837234,
0.05457768961787224,
-0.027... |
a2e750b8-a872-4da3-9b83-27a7b3dc7990 | Add support for distributed DDL (
UPDATE/DELETE/DROP PARTITION
) on cross replication clusters.
#11508
(
frank lee
).
Clear password from command line in
clickhouse-client
and
clickhouse-benchmark
if the user has specified it with explicit value. This prevents password exposure by
ps
and similar tools.
#11665
(
alexey-milovidov
).
Don't use debug info from ELF file if it does not correspond to the running binary. It is needed to avoid printing wrong function names and source locations in stack traces. This fixes
#7514
.
#11657
(
alexey-milovidov
).
Return NULL/zero when value is not parsed completely in parseDateTimeBestEffortOrNull/Zero functions. This fixes
#7876
.
#11653
(
alexey-milovidov
).
Skip empty parameters in requested URL. They may appear when you write
http://localhost:8123/?&a=b
or
http://localhost:8123/?a=b&&c=d
. This closes
#10749
.
#11651
(
alexey-milovidov
).
Allow using
groupArrayArray
and
groupUniqArrayArray
as
SimpleAggregateFunction
.
#11650
(
Volodymyr Kuznetsov
).
Allow comparison with constant strings by implicit conversions when analysing index conditions on other types. This may close
#11630
.
#11648
(
alexey-milovidov
).
https://github.com/ClickHouse/ClickHouse/pull/7572#issuecomment-642815377 Support config default HTTPHandlers.
#11628
(
Winter Zhang
).
Make more input formats to work with Kafka engine. Fix the issue with premature flushes. Fix the performance issue when
kafka_num_consumers
is greater than number of partitions in topic.
#11599
(
filimonov
).
Improve
multiple_joins_rewriter_version=2
logic. Fix unknown columns error for lambda aliases.
#11587
(
Artem Zuikov
).
Better exception message when cannot parse columns declaration list. This closes
#10403
.
#11537
(
alexey-milovidov
).
Improve
enable_optimize_predicate_expression=1
logic for VIEW.
#11513
(
Artem Zuikov
).
Adding support for PREWHERE in live view tables.
#11495
(
vzakaznikov
).
Automatically update DNS cache, which is used to check if user is allowed to connect from an address.
#11487
(
tavplubix
).
OPTIMIZE FINAL will force merge even if concurrent merges are performed. This closes
#11309
and closes
#11322
.
#11346
(
alexey-milovidov
).
Suppress output of cancelled queries in clickhouse-client. In previous versions result may continue to print in terminal even after you press Ctrl+C to cancel query. This closes
#9473
.
#11342
(
alexey-milovidov
).
Now history file is updated after each query and there is no race condition if multiple clients use one history file. This fixes
#9897
.
#11453
(
Tagir Kuskarov
).
Better log messages in while reloading configuration.
#11341
(
alexey-milovidov
).
Remove trailing whitespaces from formatted queries in
clickhouse-client
or
clickhouse-format
in some cases.
#11325
(
alexey-milovidov
). | {"source_file": "2020.md"} | [
-0.046225886791944504,
-0.07227809727191925,
-0.05032248795032501,
-0.07042292505502701,
-0.013494672253727913,
-0.05693422630429268,
-0.049004845321178436,
-0.0400538444519043,
0.024297617375850677,
0.0038874312303960323,
-0.009902633726596832,
-0.01461093220859766,
0.04754428192973137,
-... |
3631bedd-78c9-4e72-9172-5ebf4dd58d83 | Remove trailing whitespaces from formatted queries in
clickhouse-client
or
clickhouse-format
in some cases.
#11325
(
alexey-milovidov
).
Add setting "output_format_pretty_max_value_width". If value is longer, it will be cut to avoid output of too large values in terminal. This closes
#11140
.
#11324
(
alexey-milovidov
).
Better exception message in case when there is shortage of memory mappings. This closes
#11027
.
#11316
(
alexey-milovidov
).
Support (U)Int8, (U)Int16, Date in ASOF JOIN.
#11301
(
Artem Zuikov
).
Support kafka_client_id parameter for Kafka tables. It also changes the default
client.id
used by ClickHouse when communicating with Kafka to be more verbose and usable.
#11252
(
filimonov
).
Keep the value of
DistributedFilesToInsert
metric on exceptions. In previous versions, the value was set when we are going to send some files, but it is zero, if there was an exception and some files are still pending. Now it corresponds to the number of pending files in filesystem.
#11220
(
alexey-milovidov
).
Add support for multi-word data type names (such as
DOUBLE PRECISION
and
CHAR VARYING
) for better SQL compatibility.
#11214
(
Павел Потемкин
).
Provide synonyms for some data types.
#10856
(
Павел Потемкин
).
The query log is now enabled by default.
#11184
(
Ivan Blinkov
).
Show authentication type in table system.users and while executing SHOW CREATE USER query.
#11080
(
Vitaly Baranov
).
Remove data on explicit
DROP DATABASE
for
Memory
database engine. Fixes
#10557
.
#11021
(
tavplubix
).
Set thread names for internal threads of rdkafka library. Make logs from rdkafka available in server logs.
#10983
(
Azat Khuzhin
).
Support for unicode whitespaces in queries. This helps when queries are copy-pasted from Word or from web page. This fixes
#10896
.
#10903
(
alexey-milovidov
).
Allow large UInt types as the index in function
tupleElement
.
#10874
(
hcz
).
Respect prefer_localhost_replica/load_balancing on INSERT into Distributed.
#10867
(
Azat Khuzhin
).
Introduce
min_insert_block_size_rows_for_materialized_views
,
min_insert_block_size_bytes_for_materialized_views
settings. This settings are similar to
min_insert_block_size_rows
and
min_insert_block_size_bytes
, but applied only for blocks inserted into
MATERIALIZED VIEW
. It helps to control blocks squashing while pushing to MVs and avoid excessive memory usage.
#10858
(
Azat Khuzhin
).
Get rid of exception from replicated queue during server shutdown. Fixes
#10819
.
#10841
(
alesapin
).
Ensure that
varSamp
,
varPop
cannot return negative results due to numerical errors and that
stddevSamp
,
stddevPop
cannot be calculated from negative variance. This fixes
#10532
.
#10829
(
alexey-milovidov
).
Better DNS exception message. This fixes
#10813
.
#10828
(
alexey-milovidov
). | {"source_file": "2020.md"} | [
0.0009920555166900158,
0.001523787621408701,
-0.08315789699554443,
0.038904979825019836,
-0.04026085510849953,
-0.014802521094679832,
0.005770746618509293,
0.054913513362407684,
0.014945732429623604,
0.05979734659194946,
-0.015195117332041264,
-0.001086732605472207,
0.026088843122124672,
-... |
ae946031-44c2-4c55-9e3d-ad81fdf7bf48 | Better DNS exception message. This fixes
#10813
.
#10828
(
alexey-milovidov
).
Change HTTP response code in case of some parse errors to 400 Bad Request. This fix
#10636
.
#10640
(
alexey-milovidov
).
Print a message if clickhouse-client is newer than clickhouse-server.
#10627
(
alexey-milovidov
).
Adding support for
INSERT INTO [db.]table WATCH
query.
#10498
(
vzakaznikov
).
Allow to pass quota_key in clickhouse-client. This closes
#10227
.
#10270
(
alexey-milovidov
).
Performance Improvement {#performance-improvement-9}
Allow multiple replicas to assign merges, mutations, partition drop, move and replace concurrently. This closes
#10367
.
#11639
(
alexey-milovidov
)
#11795
(
alexey-milovidov
).
Optimization of GROUP BY with respect to table sorting key, enabled with
optimize_aggregation_in_order
setting.
#9113
(
dimarub2000
).
Selects with final are executed in parallel. Added setting
max_final_threads
to limit the number of threads used.
#10463
(
Nikolai Kochetov
).
Improve performance for INSERT queries via
INSERT SELECT
or INSERT with clickhouse-client when small blocks are generated (typical case with parallel parsing). This fixes
#11275
. Fix the issue that CONSTRAINTs were not working for DEFAULT fields. This fixes
#11273
. Fix the issue that CONSTRAINTS were ignored for TEMPORARY tables. This fixes
#11274
.
#11276
(
alexey-milovidov
).
Optimization that eliminates min/max/any aggregators of GROUP BY keys in SELECT section, enabled with
optimize_aggregators_of_group_by_keys
setting.
#11667
(
xPoSx
).
#11806
(
Azat Khuzhin
).
New optimization that takes all operations out of
any
function, enabled with
optimize_move_functions_out_of_any
#11529
(
Ruslan
).
Improve performance of
clickhouse-client
in interactive mode when Pretty formats are used. In previous versions, significant amount of time can be spent calculating visible width of UTF-8 string. This closes
#11323
.
#11323
(
alexey-milovidov
).
Improved performance for queries with
ORDER BY
and small
LIMIT
(less, then
max_block_size
).
#11171
(
Albert Kidrachev
).
Add runtime CPU detection to select and dispatch the best function implementation. Add support for codegeneration for multiple targets. This closes
#1017
.
#10058
(
DimasKovas
).
Enable
mlock
of clickhouse binary by default. It will prevent clickhouse executable from being paged out under high IO load.
#11139
(
alexey-milovidov
).
Make queries with
sum
aggregate function and without GROUP BY keys to run multiple times faster.
#10992
(
alexey-milovidov
).
Improving radix sort (used in
ORDER BY
with simple keys) by removing some redundant data moves.
#10981
(
Arslan Gumerov
).
Sort bigger parts of the left table in MergeJoin. Buffer left blocks in memory. Add
partial_merge_join_left_table_buffer_bytes
setting to manage the left blocks buffers sizes.
#10601
(
Artem Zuikov
). | {"source_file": "2020.md"} | [
-0.091590017080307,
-0.08468311280012131,
0.0000294169585686177,
-0.03684806451201439,
-0.07539862394332886,
-0.06703665852546692,
-0.037820618599653244,
-0.04102097079157829,
0.008665507659316063,
0.030453801155090332,
-0.0045518772676587105,
0.002030649222433567,
0.011839871294796467,
-0... |
ebc33b31-4acf-43f0-916f-c6fdd3f2f6cc | Remove duplicate ORDER BY and DISTINCT from subqueries, this optimization is enabled with
optimize_duplicate_order_by_and_distinct
#10067
(
Mikhail Malafeev
).
This feature eliminates functions of other keys in GROUP BY section, enabled with
optimize_group_by_function_keys
#10051
(
xPoSx
).
New optimization that takes arithmetic operations out of aggregate functions, enabled with
optimize_arithmetic_operations_in_aggregate_functions
#10047
(
Ruslan
).
Use HTTP client for S3 based on Poco instead of curl. This will improve performance and lower memory usage of s3 storage and table functions.
#11230
(
Pavel Kovalenko
).
Fix Kafka performance issue related to reschedules based on limits, which were always applied.
#11149
(
filimonov
).
Enable percpu_arena:percpu for jemalloc (This will reduce memory fragmentation due to thread pool).
#11084
(
Azat Khuzhin
).
Optimize memory usage when reading a response from an S3 HTTP client.
#11561
(
Pavel Kovalenko
).
Adjust the default Kafka settings for better performance.
#11388
(
filimonov
).
Experimental Feature {#experimental-feature-5}
Add data type
Point
(Tuple(Float64, Float64)) and
Polygon
(Array(Array(Tuple(Float64, Float64))).
#10678
(
Alexey Ilyukhov
).
Add's a
hasSubstr
function that allows for look for subsequences in arrays. Note: this function is likely to be renamed without further notice.
#11071
(
Ryad Zenine
).
Added OpenCL support and bitonic sort algorithm, which can be used for sorting integer types of data in single column. Needs to be build with flag
-DENABLE_OPENCL=1
. For using bitonic sort algorithm instead of others you need to set
bitonic_sort
for Setting's option
special_sort
and make sure that OpenCL is available. This feature does not improve performance or anything else, it is only provided as an example and for demonstration purposes. It is likely to be removed in near future if there will be no further development in this direction.
#10232
(
Ri
).
Build/Testing/Packaging Improvement {#buildtestingpackaging-improvement-11}
Enable clang-tidy for programs and utils.
#10991
(
alexey-milovidov
).
Remove dependency on
tzdata
: do not fail if
/usr/share/zoneinfo
directory does not exist. Note that all timezones work in ClickHouse even without tzdata installed in system.
#11827
(
alexey-milovidov
).
Added MSan and UBSan stress tests. Note that we already have MSan, UBSan for functional tests and "stress" test is another kind of tests.
#10871
(
alexey-milovidov
).
Print compiler build id in crash messages. It will make us slightly more certain about what binary has crashed. Added new function
buildId
.
#11824
(
alexey-milovidov
).
Added a test to ensure that mutations continue to work after FREEZE query.
#11820
(
alexey-milovidov
). | {"source_file": "2020.md"} | [
-0.04131230339407921,
-0.01734505034983158,
-0.08915439248085022,
-0.025258660316467285,
-0.05115622654557228,
-0.04548070952296257,
-0.05987097695469856,
-0.015338492579758167,
0.0978085920214653,
0.032475560903549194,
-0.018628686666488647,
0.044724732637405396,
0.0416986458003521,
-0.09... |
e93e005a-65ca-49b3-9935-ddc041491b83 | Added a test to ensure that mutations continue to work after FREEZE query.
#11820
(
alexey-milovidov
).
Don't allow tests with "fail" substring in their names because it makes looking at the tests results in browser less convenient when you type Ctrl+F and search for "fail".
#11817
(
alexey-milovidov
).
Removes unused imports from HTTPHandlerFactory.
#11660
(
Bharat Nallan
).
Added a random sampling of instances where copier is executed. It is needed to avoid
Too many simultaneous queries
error. Also increased timeout and decreased fault probability.
#11573
(
Nikita Mikhaylov
).
Fix missed include.
#11525
(
Matwey V. Kornilov
).
Speed up build by removing old example programs. Also found some orphan functional test.
#11486
(
alexey-milovidov
).
Increase ccache size for builds in CI.
#11450
(
alesapin
).
Leave only unit_tests_dbms in deb build.
#11429
(
Ilya Yatsishin
).
Update librdkafka to version
1.4.2
.
#11256
(
filimonov
).
Refactor CMake build files.
#11390
(
Ivan
).
Fix several flaky integration tests.
#11355
(
alesapin
).
Add support for unit tests run with UBSan.
#11345
(
alexey-milovidov
).
Remove redundant timeout from integration test
test_insertion_sync_fails_with_timeout
.
#11343
(
alesapin
).
Better check for hung queries in clickhouse-test.
#11321
(
alexey-milovidov
).
Emit a warning if server was build in debug or with sanitizers.
#11304
(
alexey-milovidov
).
Now clickhouse-test check the server aliveness before tests run.
#11285
(
alesapin
).
Fix potentially flacky test
00731_long_merge_tree_select_opened_files.sh
. It does not fail frequently but we have discovered potential race condition in this test while experimenting with ThreadFuzzer:
#9814
See
link
for the example.
#11270
(
alexey-milovidov
).
Repeat test in CI if
curl
invocation was timed out. It is possible due to system hangups for 10+ seconds that are typical in our CI infrastructure. This fixes
#11267
.
#11268
(
alexey-milovidov
).
Add a test for Join table engine from @donmikel. This closes
#9158
.
#11265
(
alexey-milovidov
).
Fix several non significant errors in unit tests.
#11262
(
alesapin
).
Now parts of linker command for
cctz
library will not be shuffled with other libraries.
#11213
(
alesapin
).
Split /programs/server into actual program and library.
#11186
(
Ivan
).
Improve build scripts for protobuf & gRPC.
#11172
(
Vitaly Baranov
).
Enable performance test that was not working.
#11158
(
alexey-milovidov
).
Create root S3 bucket for tests before any CH instance is started.
#11142
(
Pavel Kovalenko
).
Add performance test for non-constant polygons.
#11141
(
alexey-milovidov
).
Fixing
00979_live_view_watch_continuous_aggregates
test.
#11024
(
vzakaznikov
).
Add ability to run zookeeper in integration tests over tmpfs.
#11002
(
alesapin
). | {"source_file": "2020.md"} | [
-0.07946668565273285,
-0.07920902967453003,
-0.09981141239404678,
0.02551940456032753,
-0.028487619012594223,
-0.08138856291770935,
-0.06794026494026184,
0.002683918923139572,
-0.06835410743951797,
0.004803529474884272,
0.05239944905042648,
-0.03797207027673721,
0.01775933988392353,
-0.053... |
60f94ec6-4d43-441c-b5f3-bda013c59918 | Fixing
00979_live_view_watch_continuous_aggregates
test.
#11024
(
vzakaznikov
).
Add ability to run zookeeper in integration tests over tmpfs.
#11002
(
alesapin
).
Wait for odbc-bridge with exponential backoff. Previous wait time of 200 ms was not enough in our CI environment.
#10990
(
alexey-milovidov
).
Fix non-deterministic test.
#10989
(
alexey-milovidov
).
Added a test for empty external data.
#10926
(
alexey-milovidov
).
Database is recreated for every test. This improves separation of tests.
#10902
(
alexey-milovidov
).
Added more asserts in columns code.
#10833
(
alexey-milovidov
).
Better cooperation with sanitizers. Print information about query_id in the message of sanitizer failure.
#10832
(
alexey-milovidov
).
Fix obvious race condition in "Split build smoke test" check.
#10820
(
alexey-milovidov
).
Fix (false) MSan report in MergeTreeIndexFullText. The issue first appeared in
#9968
.
#10801
(
alexey-milovidov
).
Add MSan suppression for MariaDB Client library.
#10800
(
alexey-milovidov
).
GRPC make couldn't find protobuf files, changed make file by adding the right link.
#10794
(
mnkonkova
).
Enable extra warnings (
-Weverything
) for base, utils, programs. Note that we already have it for the most of the code.
#10779
(
alexey-milovidov
).
Suppressions of warnings from libraries was mistakenly declared as public in
#10396
.
#10776
(
alexey-milovidov
).
Restore a patch that was accidentially deleted in
#10396
.
#10774
(
alexey-milovidov
).
Fix performance tests errors, part 2.
#10773
(
alexey-milovidov
).
Fix performance test errors.
#10766
(
alexey-milovidov
).
Update cross-builds to use clang-10 compiler.
#10724
(
Ivan
).
Update instruction to install RPM packages. This was suggested by Denis (TG login @ldviolet) and implemented by Arkady Shejn.
#10707
(
alexey-milovidov
).
Trying to fix
tests/queries/0_stateless/01246_insert_into_watch_live_view.py
test.
#10670
(
vzakaznikov
).
Fixing and re-enabling 00979_live_view_watch_continuous_aggregates.py test.
#10658
(
vzakaznikov
).
Fix OOM in ASan stress test.
#10646
(
alexey-milovidov
).
Fix UBSan report (adding zero to nullptr) in HashTable that appeared after migration to clang-10.
#10638
(
alexey-milovidov
).
Remove external call to
ld
(bfd) linker during tzdata processing in compile time.
#10634
(
alesapin
).
Allow to use
lld
to link blobs (resources).
#10632
(
alexey-milovidov
).
Fix UBSan report in
LZ4
library.
#10631
(
alexey-milovidov
). See also
https://github.com/lz4/lz4/issues/857
Update LZ4 to the latest dev branch.
#10630
(
alexey-milovidov
).
Added auto-generated machine-readable file with the list of stable versions.
#10628
(
alexey-milovidov
).
Fix
capnproto
version check for
capnp::UnalignedFlatArrayMessageReader
.
#10618
(
Matwey V. Kornilov
).
Lower memory usage in tests.
#10617
(
alexey-milovidov
). | {"source_file": "2020.md"} | [
-0.016703015193343163,
-0.032901667058467865,
-0.06161297857761383,
0.03927495703101158,
0.06278754025697708,
-0.07349304109811783,
-0.05138725787401199,
0.047167785465717316,
-0.01315461378544569,
0.03905101120471954,
-0.016318071633577347,
-0.06580696254968643,
0.0037897045258432627,
0.0... |
91cbde1d-4899-4975-a84a-4263dbe57371 | Fix
capnproto
version check for
capnp::UnalignedFlatArrayMessageReader
.
#10618
(
Matwey V. Kornilov
).
Lower memory usage in tests.
#10617
(
alexey-milovidov
).
Fixing hard coded timeouts in new live view tests.
#10604
(
vzakaznikov
).
Increasing timeout when opening a client in tests/queries/0_stateless/helpers/client.py.
#10599
(
vzakaznikov
).
Enable ThinLTO for clang builds, continuation of
#10435
.
#10585
(
Amos Bird
).
Adding fuzzers and preparing for oss-fuzz integration.
#10546
(
kyprizel
).
Fix FreeBSD build.
#10150
(
Ivan
).
Add new build for query tests using pytest framework.
#10039
(
Ivan
).
ClickHouse release v20.4 {#clickhouse-release-v204}
ClickHouse release v20.4.8.99-stable 2020-08-10 {#clickhouse-release-v204899-stable-2020-08-10}
Bug Fix {#bug-fix-28}
Fixed error in
parseDateTimeBestEffort
function when unix timestamp was passed as an argument. This fixes
#13362
.
#13441
(
alexey-milovidov
).
Fixed potentially low performance and slightly incorrect result for
uniqExact
,
topK
,
sumDistinct
and similar aggregate functions called on Float types with NaN values. It also triggered assert in debug build. This fixes
#12491
.
#13254
(
alexey-milovidov
).
Fixed function if with nullable constexpr as cond that is not literal NULL. Fixes
#12463
.
#13226
(
alexey-milovidov
).
Fixed assert in
arrayElement
function in case of array elements are Nullable and array subscript is also Nullable. This fixes
#12172
.
#13224
(
alexey-milovidov
).
Fixed wrong index analysis with functions. It could lead to pruning wrong parts, while reading from
MergeTree
tables. Fixes
#13060
. Fixes
#12406
.
#13081
(
Anton Popov
).
Fixed unnecessary limiting for the number of threads for selects from local replica.
#12840
(
Nikolai Kochetov
).
Fixed possible extra overflow row in data which could appear for queries
WITH TOTALS
.
#12747
(
Nikolai Kochetov
).
Fixed performance with large tuples, which are interpreted as functions in
IN
section. The case when user write
WHERE x IN tuple(1, 2, ...)
instead of
WHERE x IN (1, 2, ...)
for some obscure reason.
#12700
(
Anton Popov
).
Fixed memory tracking for
input_format_parallel_parsing
(by attaching thread to group).
#12672
(
Azat Khuzhin
).
Fixed
#12293
allow push predicate when subquery contains with clause.
#12663
(
Winter Zhang
).
Fixed
#10572
fix bloom filter index with const expression.
#12659
(
Winter Zhang
).
Fixed
SIGSEGV
in
StorageKafka
when broker is unavailable (and not only).
#12658
(
Azat Khuzhin
).
Added support for function
if
with
Array(UUID)
arguments. This fixes
#11066
.
#12648
(
alexey-milovidov
).
Fixed race condition in external dictionaries with cache layout which can lead server crash.
#12566
(
alesapin
).
Removed data for Distributed tables (blocks from async INSERTs) on DROP TABLE.
#12556
(
Azat Khuzhin
). | {"source_file": "2020.md"} | [
-0.0031449913512915373,
0.017718801274895668,
-0.061785969883203506,
0.017203763127326965,
0.02847227267920971,
-0.09454165399074554,
-0.058626625686883926,
0.05766863375902176,
-0.08135613054037094,
0.044795870780944824,
0.0032851730939000845,
-0.011727500706911087,
-0.05309082567691803,
... |
5a5edf72-f79e-4fb3-bfdc-f5c7162d2f3c | Removed data for Distributed tables (blocks from async INSERTs) on DROP TABLE.
#12556
(
Azat Khuzhin
).
Fixed bug which lead to broken old parts after
ALTER DELETE
query when
enable_mixed_granularity_parts=1
. Fixes
#12536
.
#12543
(
alesapin
).
Better exception for function
in
with invalid number of arguments.
#12529
(
Anton Popov
).
Fixed performance issue, while reading from compact parts.
#12492
(
Anton Popov
).
Fixed crash in JOIN with dictionary when we are joining over expression of dictionary key:
t JOIN dict ON expr(dict.id) = t.id
. Disable dictionary join optimisation for this case.
#12458
(
Artem Zuikov
).
Fixed possible segfault if StorageMerge. Closes
#12054
.
#12401
(
tavplubix
).
Fixed order of columns in
WITH FILL
modifier. Previously order of columns of
ORDER BY
statement wasn't respected.
#12306
(
Anton Popov
).
Avoid "bad cast" exception when there is an expression that filters data by virtual columns (like
_table
in
Merge
tables) or by "index" columns in system tables such as filtering by database name when querying from
system.tables
, and this expression returns
Nullable
type. This fixes
#12166
.
#12305
(
alexey-milovidov
).
Show error after TrieDictionary failed to load.
#12290
(
Vitaly Baranov
).
The function
arrayFill
worked incorrectly for empty arrays that may lead to crash. This fixes
#12263
.
#12279
(
alexey-milovidov
).
Implemented conversions to the common type for
LowCardinality
types. This allows to execute UNION ALL of tables with columns of LowCardinality and other columns. This fixes
#8212
. This fixes
#4342
.
#12275
(
alexey-milovidov
).
Fixed the behaviour when during multiple sequential inserts in
StorageFile
header for some special types was written more than once. This fixed
#6155
.
#12197
(
Nikita Mikhaylov
).
Fixed logical functions for UInt8 values when they are not equal to 0 or 1.
#12196
(
Alexander Kazakov
).
Cap max_memory_usage* limits to the process resident memory.
#12182
(
Azat Khuzhin
).
Fixed
dictGet
arguments check during GROUP BY injective functions elimination.
#12179
(
Azat Khuzhin
).
Don't split the dictionary source's table name into schema and table name itself if ODBC connection does not support schema.
#12165
(
Vitaly Baranov
).
Fixed wrong logic in
ALTER DELETE
that leads to deleting of records when condition evaluates to NULL. This fixes
#9088
. This closes
#12106
.
#12153
(
alexey-milovidov
).
Fixed transform of query to send to external DBMS (e.g. MySQL, ODBC) in presense of aliases. This fixes
#12032
.
#12151
(
alexey-milovidov
).
Fixed potential overflow in integer division. This fixes
#12119
.
#12140
(
alexey-milovidov
).
Fixed potential infinite loop in
greatCircleDistance
,
geoDistance
. This fixes
#12117
.
#12137
(
alexey-milovidov
). | {"source_file": "2020.md"} | [
-0.019551727920770645,
0.027241386473178864,
0.015868868678808212,
0.027756040915846825,
-0.009672952815890312,
-0.10697287321090698,
0.009104820899665356,
0.02215009182691574,
-0.03338040038943291,
0.011227058246731758,
0.042006928473711014,
0.036509472876787186,
0.011938676238059998,
-0.... |
37f5f93d-caa8-452e-92aa-65f80eeff3b6 | Fixed potential infinite loop in
greatCircleDistance
,
geoDistance
. This fixes
#12117
.
#12137
(
alexey-milovidov
).
Normalize "pid" file handling. In previous versions the server may refuse to start if it was killed without proper shutdown and if there is another process that has the same pid as previously runned server. Also pid file may be removed in unsuccessful server startup even if there is another server running. This fixes
#3501
.
#12133
(
alexey-milovidov
).
Fixed handling dependency of table with ENGINE=Dictionary on dictionary. This fixes
#10994
. This fixes
#10397
.
#12116
(
Vitaly Baranov
).
Fixed performance for selects with
UNION
caused by wrong limit for the total number of threads. Fixes
#12030
.
#12103
(
Nikolai Kochetov
).
Fixed segfault with
-StateResample
combinators.
#12092
(
Anton Popov
).
Fixed empty
result_rows
and
result_bytes
metrics in
system.quey_log
for selects. Fixes
#11595
.
#12089
(
Nikolai Kochetov
).
Fixed unnecessary limiting the number of threads for selects from
VIEW
. Fixes
#11937
.
#12085
(
Nikolai Kochetov
).
Fixed possible crash while using wrong type for
PREWHERE
. Fixes
#12053
,
#12060
.
#12060
(
Nikolai Kochetov
).
Fixed error
Expected single dictionary argument for function
for function
defaultValueOfArgumentType
with
LowCardinality
type. Fixes
#11808
.
#12056
(
Nikolai Kochetov
).
Fixed error
Cannot capture column
for higher-order functions with
Tuple(LowCardinality)
argument. Fixes
#9766
.
#12055
(
Nikolai Kochetov
).
Parse tables metadata in parallel when loading database. This fixes slow server startup when there are large number of tables.
#12045
(
tavplubix
).
Make
topK
aggregate function return Enum for Enum types. This fixes
#3740
.
#12043
(
alexey-milovidov
).
Fixed constraints check if constraint is a constant expression. This fixes
#11360
.
#12042
(
alexey-milovidov
).
Fixed incorrect comparison of tuples with
Nullable
columns. Fixes
#11985
.
#12039
(
Nikolai Kochetov
).
Fixed calculation of access rights when allow_introspection_functions=0.
#12031
(
Vitaly Baranov
).
Fixed wrong result and potential crash when invoking function
if
with arguments of type
FixedString
with different sizes. This fixes
#11362
.
#12021
(
alexey-milovidov
).
A query with function
neighbor
as the only returned expression may return empty result if the function is called with offset
-9223372036854775808
. This fixes
#11367
.
#12019
(
alexey-milovidov
).
Fixed calculation of access rights when allow_ddl=0.
#12015
(
Vitaly Baranov
).
Fixed potential array size overflow in generateRandom that may lead to crash. This fixes
#11371
.
#12013
(
alexey-milovidov
).
Fixed potential floating point exception. This closes
#11378
.
#12005
(
alexey-milovidov
).
Fixed wrong setting name in log message at server startup.
#11997
(
alexey-milovidov
). | {"source_file": "2020.md"} | [
-0.0063959090039134026,
-0.04532216861844063,
-0.045835502445697784,
-0.027363095432519913,
-0.034152645617723465,
-0.11063883453607559,
-0.0172327421605587,
0.02159704640507698,
-0.024670546874403954,
0.021140193566679955,
0.036573197692632675,
0.03547378256917,
-0.007520813494920731,
-0.... |
c85b264a-757d-4eec-8834-9d23f1440b24 | Fixed potential floating point exception. This closes
#11378
.
#12005
(
alexey-milovidov
).
Fixed wrong setting name in log message at server startup.
#11997
(
alexey-milovidov
).
Fixed
Query parameter was not set
in
Values
format. Fixes
#11918
.
#11936
(
tavplubix
).
Keep aliases for substitutions in query (parametrized queries). This fixes
#11914
.
#11916
(
alexey-milovidov
).
Fixed bug with no moves when changing storage policy from default one.
#11893
(
Vladimir Chebotarev
).
Fixed potential floating point exception when parsing
DateTime64
. This fixes
#11374
.
#11875
(
alexey-milovidov
).
Fixed memory accounting via HTTP interface (can be significant with
wait_end_of_query=1
).
#11840
(
Azat Khuzhin
).
Parse metadata stored in zookeeper before checking for equality.
#11739
(
Azat Khuzhin
).
Performance Improvement {#performance-improvement-10}
Index not used for IN operator with literals, performance regression introduced around v19.3. This fixes
#10574
.
#12062
(
nvartolomei
).
Build/Testing/Packaging Improvement {#buildtestingpackaging-improvement-12}
Install
ca-certificates
before the first
apt-get update
in Dockerfile.
#12095
(
Ivan Blinkov
).
ClickHouse release v20.4.6.53-stable 2020-06-25 {#clickhouse-release-v204653-stable-2020-06-25}
Bug Fix {#bug-fix-29}
Fix rare crash caused by using
Nullable
column in prewhere condition. Continuation of
#11608
.
#11869
(
Nikolai Kochetov
).
Don't allow arrayJoin inside higher order functions. It was leading to broken protocol synchronization. This closes
#3933
.
#11846
(
alexey-milovidov
).
Fix wrong result of comparison of FixedString with constant String. This fixes
#11393
. This bug appeared in version 20.4.
#11828
(
alexey-milovidov
).
Fix wrong result for
if()
with NULLs in condition.
#11807
(
Artem Zuikov
).
Fix using too many threads for queries.
#11788
(
Nikolai Kochetov
).
Fix unexpected behaviour of queries like
SELECT *, xyz.*
which were success while an error expected.
#11753
(
hexiaoting
).
Now replicated fetches will be cancelled during metadata alter.
#11744
(
alesapin
).
Fixed LOGICAL_ERROR caused by wrong type deduction of complex literals in Values input format.
#11732
(
tavplubix
).
Fix
ORDER BY ... WITH FILL
over const columns.
#11697
(
Anton Popov
).
Pass proper timeouts when communicating with XDBC bridge. Recently timeouts were not respected when checking bridge liveness and receiving meta info.
#11690
(
alexey-milovidov
).
Fix
LIMIT n WITH TIES
usage together with
ORDER BY
statement, which contains aliases.
#11689
(
Anton Popov
).
Fix error which leads to an incorrect state of
system.mutations
. It may show that whole mutation is already done but the server still has
MUTATE_PART
tasks in the replication queue and tries to execute them. This fixes
#11611
.
#11681
(
alesapin
). | {"source_file": "2020.md"} | [
-0.010543500073254108,
0.03133410960435867,
-0.03584812581539154,
0.07438021153211594,
-0.07877349853515625,
-0.05724784731864929,
-0.0003040551964659244,
0.03153087571263313,
-0.005452178884297609,
0.05317692831158638,
-0.009137619286775589,
-0.04344094917178154,
0.03084566816687584,
0.06... |
29cd0c5a-36e5-4e56-96e7-608059037aa6 | Add support for regular expressions with case-insensitive flags. This fixes
#11101
and fixes
#11506
.
#11649
(
alexey-milovidov
).
Remove trivial count query optimization if row-level security is set. In previous versions the user get total count of records in a table instead filtered. This fixes
#11352
.
#11644
(
alexey-milovidov
).
Fix bloom filters for String (data skipping indices).
#11638
(
Azat Khuzhin
).
Fix rare crash caused by using
Nullable
column in prewhere condition. (Probably it is connected with
#11572
somehow).
#11608
(
Nikolai Kochetov
).
Fix error
Block structure mismatch
for queries with sampling reading from
Buffer
table.
#11602
(
Nikolai Kochetov
).
Fix wrong exit code of the clickhouse-client, when exception.code() % 256 = 0.
#11601
(
filimonov
).
Fix trivial error in log message about "Mark cache size was lowered" at server startup. This closes
#11399
.
#11589
(
alexey-milovidov
).
Fix error
Size of offsets does not match size of column
for queries with
PREWHERE column in (subquery)
and
ARRAY JOIN
.
#11580
(
Nikolai Kochetov
).
Fixed rare segfault in
SHOW CREATE TABLE
Fixes
#11490
.
#11579
(
tavplubix
).
All queries in HTTP session have had the same query_id. It is fixed.
#11578
(
tavplubix
).
Now clickhouse-server docker container will prefer IPv6 checking server aliveness.
#11550
(
Ivan Starkov
).
Fix shard_num/replica_num for
<node>
(breaks use_compact_format_in_distributed_parts_names).
#11528
(
Azat Khuzhin
).
Fix race condition which may lead to an exception during table drop. It's a bit tricky and not dangerous at all. If you want an explanation, just notice me in telegram.
#11523
(
alesapin
).
Fix memory leak when exception is thrown in the middle of aggregation with -State functions. This fixes
#8995
.
#11496
(
alexey-milovidov
).
If data skipping index is dependent on columns that are going to be modified during background merge (for SummingMergeTree, AggregatingMergeTree as well as for TTL GROUP BY), it was calculated incorrectly. This issue is fixed by moving index calculation after merge so the index is calculated on merged data.
#11162
(
Azat Khuzhin
).
Get rid of old libunwind patches. https://github.com/ClickHouse-Extras/libunwind/commit/500aa227911bd185a94bfc071d68f4d3b03cb3b1#r39048012 This allows to disable
-fno-omit-frame-pointer
in
clang
builds that improves performance at least by 1% in average.
#10761
(
Amos Bird
).
Fix usage of primary key wrapped into a function with 'FINAL' modifier and 'ORDER BY' optimization.
#10715
(
Anton Popov
).
Build/Testing/Packaging Improvement {#buildtestingpackaging-improvement-13}
Fix several non significant errors in unit tests.
#11262
(
alesapin
).
Fix (false) MSan report in MergeTreeIndexFullText. The issue first appeared in
#9968
.
#10801
(
alexey-milovidov
). | {"source_file": "2020.md"} | [
0.014974668622016907,
0.03215090557932854,
0.0049973963759839535,
-0.005123856011778116,
-0.04439912363886833,
-0.019028393551707268,
0.0264627356082201,
0.00017043262778315693,
-0.08964704722166061,
0.02937987446784973,
-0.01903768815100193,
-0.0027565944474190474,
0.026899442076683044,
-... |
d982f248-8df1-4be3-be6d-59ed6fe0a850 | Fix several non significant errors in unit tests.
#11262
(
alesapin
).
Fix (false) MSan report in MergeTreeIndexFullText. The issue first appeared in
#9968
.
#10801
(
alexey-milovidov
).
ClickHouse release v20.4.5.36-stable 2020-06-10 {#clickhouse-release-v204536-stable-2020-06-10}
Bug Fix {#bug-fix-30}
Fix the error
Data compressed with different methods
that can happen if
min_bytes_to_use_direct_io
is enabled and PREWHERE is active and using SAMPLE or high number of threads. This fixes
#11539
.
#11540
(
alexey-milovidov
).
Fix return compressed size for codecs.
#11448
(
Nikolai Kochetov
).
Fix server crash when a column has compression codec with non-literal arguments. Fixes
#11365
.
#11431
(
alesapin
).
Fix pointInPolygon with nan as point. Fixes
#11375
.
#11421
(
Alexey Ilyukhov
).
Fix potential uninitialized memory read in MergeTree shutdown if table was not created successfully.
#11420
(
alexey-milovidov
).
Fixed geohashesInBox with arguments outside of latitude/longitude range.
#11403
(
Vasily Nemkov
).
Fix possible
Pipeline stuck
error for queries with external sort and limit. Fixes
#11359
.
#11366
(
Nikolai Kochetov
).
Remove redundant lock during parts send in ReplicatedMergeTree.
#11354
(
alesapin
).
Fix support for
\G
(vertical output) in clickhouse-client in multiline mode. This closes
#9933
.
#11350
(
alexey-milovidov
).
Fix potential segfault when using
Lazy
database.
#11348
(
alexey-milovidov
).
Fix crash in
quantilesExactWeightedArray
.
#11337
(
Nikolai Kochetov
).
Now merges stopped before change metadata in
ALTER
queries.
#11335
(
alesapin
).
Make writing to
MATERIALIZED VIEW
with setting
parallel_view_processing = 1
parallel again. Fixes
#10241
.
#11330
(
Nikolai Kochetov
).
Fix visitParamExtractRaw when extracted JSON has strings with unbalanced { or [.
#11318
(
Ewout
).
Fix very rare race condition in ThreadPool.
#11314
(
alexey-milovidov
).
Fix insignificant data race in clickhouse-copier. Found by integration tests.
#11313
(
alexey-milovidov
).
Fix potential uninitialized memory in conversion. Example:
SELECT toIntervalSecond(now64())
.
#11311
(
alexey-milovidov
).
Fix the issue when index analysis cannot work if a table has Array column in primary key and if a query is filtering by this column with
empty
or
notEmpty
functions. This fixes
#11286
.
#11303
(
alexey-milovidov
). | {"source_file": "2020.md"} | [
-0.043994415551424026,
-0.0501498319208622,
-0.018174566328525543,
0.03709697723388672,
-0.004085035994648933,
-0.11879720538854599,
-0.05059143900871277,
0.036446794867515564,
-0.03720016032457352,
0.056473247706890106,
0.024539735168218613,
0.031196720898151398,
-0.03942647948861122,
-0.... |
9567a44f-4fc6-4400-adc8-0ec34a8132b9 | Fix bug when query speed estimation can be incorrect and the limit of
min_execution_speed
may not work or work incorrectly if the query is throttled by
max_network_bandwidth
,
max_execution_speed
or
priority
settings. Change the default value of
timeout_before_checking_execution_speed
to non-zero, because otherwise the settings
min_execution_speed
and
max_execution_speed
have no effect. This fixes
#11297
. This fixes
#5732
. This fixes
#6228
. Usability improvement: avoid concatenation of exception message with progress bar in
clickhouse-client
.
#11296
(
alexey-milovidov
).
Fix crash when SET DEFAULT ROLE is called with wrong arguments. This fixes
#10586
.
#11278
(
Vitaly Baranov
).
Fix crash while reading malformed data in Protobuf format. This fixes
#5957
, fixes
#11203
.
#11258
(
Vitaly Baranov
).
Fixed a bug when cache-dictionary could return default value instead of normal (when there are only expired keys). This affects only string fields.
#11233
(
Nikita Mikhaylov
).
Fix error
Block structure mismatch in QueryPipeline
while reading from
VIEW
with constants in inner query. Fixes
#11181
.
#11205
(
Nikolai Kochetov
).
Fix possible exception
Invalid status for associated output
.
#11200
(
Nikolai Kochetov
).
Fix possible error
Cannot capture column
for higher-order functions with
Array(Array(LowCardinality))
captured argument.
#11185
(
Nikolai Kochetov
).
Fixed S3 globbing which could fail in case of more than 1000 keys and some backends.
#11179
(
Vladimir Chebotarev
).
If data skipping index is dependent on columns that are going to be modified during background merge (for SummingMergeTree, AggregatingMergeTree as well as for TTL GROUP BY), it was calculated incorrectly. This issue is fixed by moving index calculation after merge so the index is calculated on merged data.
#11162
(
Azat Khuzhin
).
Fix Kafka performance issue related to reschedules based on limits, which were always applied.
#11149
(
filimonov
).
Fix for the hang which was happening sometimes during DROP of table engine=Kafka (or during server restarts).
#11145
(
filimonov
).
Fix excessive reserving of threads for simple queries (optimization for reducing the number of threads, which was partly broken after changes in pipeline).
#11114
(
Azat Khuzhin
).
Fix predicates optimization for distributed queries (
enable_optimize_predicate_expression=1
) for queries with
HAVING
section (i.e. when filtering on the server initiator is required), by preserving the order of expressions (and this is enough to fix), and also force aggregator use column names over indexes. Fixes:
#10613
,
#11413
.
#10621
(
Azat Khuzhin
).
Build/Testing/Packaging Improvement {#buildtestingpackaging-improvement-14}
Fix several flaky integration tests.
#11355
(
alesapin
).
ClickHouse release v20.4.4.18-stable 2020-05-26 {#clickhouse-release-v204418-stable-2020-05-26}
No changes compared to v20.4.3.16-stable. | {"source_file": "2020.md"} | [
0.01787998341023922,
0.030613305047154427,
-0.048841845244169235,
-0.03852640837430954,
-0.08931281417608261,
-0.06582903116941452,
0.0008002703543752432,
0.037305064499378204,
-0.10228684544563293,
0.026242965832352638,
0.04760117083787918,
-0.013394149951636791,
-0.019348520785570145,
0.... |
a05a4c31-54d0-478d-9eaa-7fb6d579bb40 | ClickHouse release v20.4.4.18-stable 2020-05-26 {#clickhouse-release-v204418-stable-2020-05-26}
No changes compared to v20.4.3.16-stable.
ClickHouse release v20.4.3.16-stable 2020-05-23 {#clickhouse-release-v204316-stable-2020-05-23}
Bug Fix {#bug-fix-31}
Removed logging from mutation finalization task if nothing was finalized.
#11109
(
alesapin
).
Fixed memory leak in registerDiskS3.
#11074
(
Pavel Kovalenko
).
Fixed the potential missed data during termination of Kafka engine table.
#11048
(
filimonov
).
Fixed
parseDateTime64BestEffort
argument resolution bugs.
#11038
(
Vasily Nemkov
).
Fixed very rare potential use-after-free error in
MergeTree
if table was not created successfully.
#10986
,
#10970
(
alexey-milovidov
).
Fixed metadata (relative path for rename) and data (relative path for symlink) handling for Atomic database.
#10980
(
Azat Khuzhin
).
Fixed server crash on concurrent
ALTER
and
DROP DATABASE
queries with
Atomic
database engine.
#10968
(
tavplubix
).
Fixed incorrect raw data size in
getRawData()
method.
#10964
(
Igr
).
Fixed incompatibility of two-level aggregation between versions 20.1 and earlier. This incompatibility happens when different versions of ClickHouse are used on initiator node and remote nodes and the size of GROUP BY result is large and aggregation is performed by a single String field. It leads to several unmerged rows for a single key in result.
#10952
(
alexey-milovidov
).
Fixed sending partially written files by the
DistributedBlockOutputStream
.
#10940
(
Azat Khuzhin
).
Fixed crash in
SELECT count(notNullIn(NULL, []))
.
#10920
(
Nikolai Kochetov
).
Fixed the hang which was happening sometimes during
DROP
of
Kafka
table engine. (or during server restarts).
#10910
(
filimonov
).
Fixed the impossibility of executing multiple
ALTER RENAME
like
a TO b, c TO a
.
#10895
(
alesapin
).
Fixed possible race which could happen when you get result from aggregate function state from multiple thread for the same column. The only way it can happen is when you use
finalizeAggregation
function while reading from table with
Memory
engine which stores
AggregateFunction
state for
quantile*
function.
#10890
(
Nikolai Kochetov
).
Fixed backward compatibility with tuples in Distributed tables.
#10889
(
Anton Popov
).
Fixed
SIGSEGV
in
StringHashTable
if such a key does not exist.
#10870
(
Azat Khuzhin
).
Fixed
WATCH
hangs after
LiveView
table was dropped from database with
Atomic
engine.
#10859
(
tavplubix
).
Fixed bug in
ReplicatedMergeTree
which might cause some
ALTER
on
OPTIMIZE
query to hang waiting for some replica after it become inactive.
#10849
(
tavplubix
).
Now constraints are updated if the column participating in
CONSTRAINT
expression was renamed. Fixes
#10844
.
#10847
(
alesapin
).
Fixed potential read of uninitialized memory in cache-dictionary.
#10834
(
alexey-milovidov
). | {"source_file": "2020.md"} | [
-0.020931802690029144,
-0.03560395911335945,
0.0036591333337128162,
-0.01264006458222866,
0.02073371410369873,
-0.059814147651195526,
-0.10361208021640778,
0.018345119431614876,
-0.0035521406680345535,
0.07750876992940903,
0.034323811531066895,
-0.013303465209901333,
-0.0650925263762474,
-... |
9279d0d6-a79b-4116-a153-a2aa2f897dbc | Fixed potential read of uninitialized memory in cache-dictionary.
#10834
(
alexey-milovidov
).
Fixed columns order after
Block::sortColumns()
.
#10826
(
Azat Khuzhin
).
Fixed the issue with
ODBC
bridge when no quoting of identifiers is requested. Fixes
#7984
.
#10821
(
alexey-milovidov
).
Fixed
UBSan
and
MSan
report in
DateLUT
.
#10798
(
alexey-milovidov
).
Fixed incorrect type conversion in key conditions. Fixes
#6287
.
#10791
(
Andrew Onyshchuk
).
Fixed
parallel_view_processing
behavior. Now all insertions into
MATERIALIZED VIEW
without exception should be finished if exception happened. Fixes
#10241
.
#10757
(
Nikolai Kochetov
).
Fixed combinator
-OrNull
and
-OrDefault
when combined with
-State
.
#10741
(
hcz
).
Fixed possible buffer overflow in function
h3EdgeAngle
.
#10711
(
alexey-milovidov
).
Fixed bug which locks concurrent alters when table has a lot of parts.
#10659
(
alesapin
).
Fixed
nullptr
dereference in
StorageBuffer
if server was shutdown before table startup.
#10641
(
alexey-milovidov
).
Fixed
optimize_skip_unused_shards
with
LowCardinality
.
#10611
(
Azat Khuzhin
).
Fixed handling condition variable for synchronous mutations. In some cases signals to that condition variable could be lost.
#10588
(
Vladimir Chebotarev
).
Fixed possible crash when
createDictionary()
is called before
loadStoredObject()
has finished.
#10587
(
Vitaly Baranov
).
Fixed
SELECT
of column
ALIAS
which default expression type different from column type.
#10563
(
Azat Khuzhin
).
Implemented comparison between DateTime64 and String values.
#10560
(
Vasily Nemkov
).
Disable
GROUP BY
sharding_key optimization by default (
optimize_distributed_group_by_sharding_key
had been introduced and turned of by default, due to trickery of sharding_key analyzing, simple example is
if
in sharding key) and fix it for
WITH ROLLUP/CUBE/TOTALS
.
#10516
(
Azat Khuzhin
).
Fixed
#10263
.
#10486
(
Azat Khuzhin
).
Added tests about
max_rows_to_sort
setting.
#10268
(
alexey-milovidov
).
Added backward compatibility for create bloom filter index.
#10551
.
#10569
(
Winter Zhang
).
ClickHouse release v20.4.2.9, 2020-05-12 {#clickhouse-release-v20429-2020-05-12}
Backward Incompatible Change {#backward-incompatible-change-8}
System tables (e.g. system.query_log, system.trace_log, system.metric_log) are using compact data part format for parts smaller than 10 MiB in size. Compact data part format is supported since version 20.3. If you are going to downgrade to version less than 20.3, you should manually delete table data for system logs in
/var/lib/clickhouse/data/system/
. | {"source_file": "2020.md"} | [
-0.044526051729917526,
-0.041642025113105774,
-0.050669148564338684,
0.01801697164773941,
-0.03528624400496483,
-0.06717224419116974,
-0.030945617705583572,
-0.014276714064180851,
-0.008564172312617302,
0.06798017770051956,
0.01911444030702114,
0.0408901683986187,
0.006723289377987385,
-0.... |
b2dd764c-5176-4b2d-b5c9-bd35ddcd2667 | When string comparison involves FixedString and compared arguments are of different sizes, do comparison as if smaller string is padded to the length of the larger. This is intented for SQL compatibility if we imagine that FixedString data type corresponds to SQL CHAR. This closes
#9272
.
#10363
(
alexey-milovidov
)
Make SHOW CREATE TABLE multiline. Now it is more readable and more like MySQL.
#10049
(
Azat Khuzhin
)
Added a setting
validate_polygons
that is used in
pointInPolygon
function and enabled by default.
#9857
(
alexey-milovidov
)
New Feature {#new-feature-8}
Add support for secured connection from ClickHouse to Zookeeper
#10184
(
Konstantin Lebedev
)
Support custom HTTP handlers. See
#5436
for description.
#7572
(
Winter Zhang
)
Add MessagePack Input/Output format.
#9889
(
Kruglov Pavel
)
Add Regexp input format.
#9196
(
Kruglov Pavel
)
Added output format
Markdown
for embedding tables in markdown documents.
#10317
(
Kruglov Pavel
)
Added support for custom settings section in dictionaries. Also fixes issue
#2829
.
#10137
(
Artem Streltsov
)
Added custom settings support in DDL-queries for
CREATE DICTIONARY
#10465
(
Artem Streltsov
)
Add simple server-wide memory profiler that will collect allocation contexts when server memory usage becomes higher than the next allocation threshold.
#10444
(
alexey-milovidov
)
Add setting
always_fetch_merged_part
which restrict replica to merge parts by itself and always prefer dowloading from other replicas.
#10379
(
alesapin
)
Add function
JSONExtractKeysAndValuesRaw
which extracts raw data from JSON objects
#10378
(
hcz
)
Add memory usage from OS to
system.asynchronous_metrics
.
#10361
(
alexey-milovidov
)
Added generic variants for functions
least
and
greatest
. Now they work with arbitrary number of arguments of arbitrary types. This fixes
#4767
#10318
(
alexey-milovidov
)
Now ClickHouse controls timeouts of dictionary sources on its side. Two new settings added to cache dictionary configuration:
strict_max_lifetime_seconds
, which is
max_lifetime
by default, and
query_wait_timeout_milliseconds
, which is one minute by default. The first settings is also useful with
allow_read_expired_keys
settings (to forbid reading very expired keys).
#10337
(
Nikita Mikhaylov
)
Add log_queries_min_type to filter which entries will be written to query_log
#10053
(
Azat Khuzhin
)
Added function
isConstant
. This function checks whether its argument is constant expression and returns 1 or 0. It is intended for development, debugging and demonstration purposes.
#10198
(
alexey-milovidov
)
add joinGetOrNull to return NULL when key is missing instead of returning the default value.
#10094
(
Amos Bird
)
Consider
NULL
to be equal to
NULL
in
IN
operator, if the option
transform_null_in
is set.
#10085
(
achimbab
) | {"source_file": "2020.md"} | [
0.02071526274085045,
0.06390715390443802,
-0.020414894446730614,
-0.0063149575144052505,
-0.06522006541490555,
-0.05251053720712662,
0.027890872210264206,
0.09368226677179337,
-0.05229980871081352,
0.002669036854058504,
-0.04933232441544533,
-0.04611772671341896,
0.0804070234298706,
0.0038... |
befa60b2-a7f6-4efb-90be-58ccfc8e865f | Consider
NULL
to be equal to
NULL
in
IN
operator, if the option
transform_null_in
is set.
#10085
(
achimbab
)
Add
ALTER TABLE ... RENAME COLUMN
for MergeTree table engines family.
#9948
(
alesapin
)
Support parallel distributed INSERT SELECT.
#9759
(
vxider
)
Add ability to query Distributed over Distributed (w/o
distributed_group_by_no_merge
) ...
#9923
(
Azat Khuzhin
)
Add function
arrayReduceInRanges
which aggregates array elements in given ranges.
#9598
(
hcz
)
Add Dictionary Status on prometheus exporter.
#9622
(
Guillaume Tassery
)
Add function
arrayAUC
#8698
(
taiyang-li
)
Support
DROP VIEW
statement for better TPC-H compatibility.
#9831
(
Amos Bird
)
Add 'strict_order' option to windowFunnel()
#9773
(
achimbab
)
Support
DATE
and
TIMESTAMP
SQL operators, e.g.
SELECT date '2001-01-01'
#9691
(
Artem Zuikov
)
Experimental Feature {#experimental-feature-6}
Added experimental database engine Atomic. It supports non-blocking
DROP
and
RENAME TABLE
queries and atomic
EXCHANGE TABLES t1 AND t2
query
#7512
(
tavplubix
)
Initial support for ReplicatedMergeTree over S3 (it works in suboptimal way)
#10126
(
Pavel Kovalenko
)
Bug Fix {#bug-fix-32}
Fixed incorrect scalar results inside inner query of
MATERIALIZED VIEW
in case if this query contained dependent table
#10603
(
Nikolai Kochetov
)
Fixed bug, which caused HTTP requests to get stuck on client closing connection when
readonly=2
and
cancel_http_readonly_queries_on_client_close=1
.
#10684
(
tavplubix
)
Fix segfault in StorageBuffer when exception is thrown on server startup. Fixes
#10550
#10609
(
tavplubix
)
The query
SYSTEM DROP DNS CACHE
now also drops caches used to check if user is allowed to connect from some IP addresses
#10608
(
tavplubix
)
Fix usage of multiple
IN
operators with an identical set in one query. Fixes
#10539
#10686
(
Anton Popov
)
Fix crash in
generateRandom
with nested types. Fixes
#10583
.
#10734
(
Nikolai Kochetov
)
Fix data corruption for
LowCardinality(FixedString)
key column in
SummingMergeTree
which could have happened after merge. Fixes
#10489
.
#10721
(
Nikolai Kochetov
)
Fix logic for aggregation_memory_efficient_merge_threads setting.
#10667
(
palasonic1
)
Fix disappearing totals. Totals could have being filtered if query had
JOIN
or subquery with external
WHERE
condition. Fixes
#10674
#10698
(
Nikolai Kochetov
)
Fix the lack of parallel execution of remote queries with
distributed_aggregation_memory_efficient
enabled. Fixes
#10655
#10664
(
Nikolai Kochetov
)
Fix possible incorrect number of rows for queries with
LIMIT
. Fixes
#10566
,
#10709
#10660
(
Nikolai Kochetov
)
Fix index corruption, which may occur in some cases after merging compact parts into another compact part.
#10531
(
Anton Popov
) | {"source_file": "2020.md"} | [
-0.0020571770146489143,
0.0421757847070694,
-0.040812812745571136,
0.042038001120090485,
-0.07463597506284714,
-0.05021548271179199,
-0.04073349013924599,
-0.007301465142518282,
-0.03965892270207405,
0.05219922959804535,
0.04315558448433876,
-0.05611826851963997,
-0.014179076999425888,
-0.... |
80a5d3e0-020e-4694-b987-0c2d2e41440f | Fix index corruption, which may occur in some cases after merging compact parts into another compact part.
#10531
(
Anton Popov
)
Fix the situation, when mutation finished all parts, but hung up in
is_done=0
.
#10526
(
alesapin
)
Fix overflow at beginning of unix epoch for timezones with fractional offset from UTC. Fixes
#9335
.
#10513
(
alexey-milovidov
)
Better diagnostics for input formats. Fixes
#10204
#10418
(
tavplubix
)
Fix numeric overflow in
simpleLinearRegression()
over large integers
#10474
(
hcz
)
Fix use-after-free in Distributed shutdown, avoid waiting for sending all batches
#10491
(
Azat Khuzhin
)
Add CA certificates to clickhouse-server docker image
#10476
(
filimonov
)
Fix a rare endless loop that might have occurred when using the
addressToLine
function or AggregateFunctionState columns.
#10466
(
Alexander Kuzmenkov
)
Handle zookeeper "no node error" during distributed query
#10050
(
Daniel Chen
)
Fix bug when server cannot attach table after column's default was altered.
#10441
(
alesapin
)
Implicitly cast the default expression type to the column type for the ALIAS columns
#10563
(
Azat Khuzhin
)
Don't remove metadata directory if
ATTACH DATABASE
fails
#10442
(
Winter Zhang
)
Avoid dependency on system tzdata. Fixes loading of
Africa/Casablanca
timezone on CentOS 8. Fixes
#10211
#10425
(
alexey-milovidov
)
Fix some issues if data is inserted with quorum and then gets deleted (DROP PARTITION, TTL, etc.). It led to stuck of INSERTs or false-positive exceptions in SELECTs. Fixes
#9946
#10188
(
Nikita Mikhaylov
)
Check the number and type of arguments when creating BloomFilter index
#9623
#10431
(
Winter Zhang
)
Prefer
fallback_to_stale_replicas
over
skip_unavailable_shards
, otherwise when both settings specified and there are no up-to-date replicas the query will fail (patch from @alex-zaitsev )
#10422
(
Azat Khuzhin
)
Fix the issue when a query with ARRAY JOIN, ORDER BY and LIMIT may return incomplete result. Fixes
#10226
.
#10427
(
Vadim Plakhtinskiy
)
Add database name to dictionary name after DETACH/ATTACH. Fixes system.dictionaries table and
SYSTEM RELOAD
query
#10415
(
Azat Khuzhin
)
Fix possible incorrect result for extremes in processors pipeline.
#10131
(
Nikolai Kochetov
)
Fix possible segfault when the setting
distributed_group_by_no_merge
is enabled (introduced in 20.3.7.46 by
#10131
).
#10399
(
Nikolai Kochetov
)
Fix wrong flattening of
Array(Tuple(...))
data types. Fixes
#10259
#10390
(
alexey-milovidov
)
Fix column names of constants inside JOIN that may clash with names of constants outside of JOIN
#9950
(
Alexander Kuzmenkov
)
Fix order of columns after Block::sortColumns()
#10826
(
Azat Khuzhin
)
Fix possible
Pipeline stuck
error in
ConcatProcessor
which may happen in remote query.
#10381
(
Nikolai Kochetov
) | {"source_file": "2020.md"} | [
-0.049182720482349396,
0.039146434515714645,
-0.001314146677032113,
0.018630804494023323,
0.0015811118064448237,
-0.11399046331644058,
-0.05806729942560196,
0.01517176628112793,
-0.023373503237962723,
0.04773148149251938,
-0.027886709198355675,
0.013657910749316216,
-0.000016912841601879336,... |
315c4b57-30d3-4ac5-a2f0-8121b4f34f0a | Fix order of columns after Block::sortColumns()
#10826
(
Azat Khuzhin
)
Fix possible
Pipeline stuck
error in
ConcatProcessor
which may happen in remote query.
#10381
(
Nikolai Kochetov
)
Don't make disk reservations for aggregations. Fixes
#9241
#10375
(
Azat Khuzhin
)
Fix wrong behaviour of datetime functions for timezones that has altered between positive and negative offsets from UTC (e.g. Pacific/Kiritimati). Fixes
#7202
#10369
(
alexey-milovidov
)
Avoid infinite loop in
dictIsIn
function. Fixes #515
#10365
(
alexey-milovidov
)
Disable GROUP BY sharding_key optimization by default and fix it for WITH ROLLUP/CUBE/TOTALS
#10516
(
Azat Khuzhin
)
Check for error code when checking parts and don't mark part as broken if the error is like "not enough memory". Fixes
#6269
#10364
(
alexey-milovidov
)
Show information about not loaded dictionaries in system tables.
#10234
(
Vitaly Baranov
)
Fix nullptr dereference in StorageBuffer if server was shutdown before table startup.
#10641
(
alexey-milovidov
)
Fixed
DROP
vs
OPTIMIZE
race in
ReplicatedMergeTree
.
DROP
could left some garbage in replica path in ZooKeeper if there was concurrent
OPTIMIZE
query.
#10312
(
tavplubix
)
Fix 'Logical error: CROSS JOIN has expressions' error for queries with comma and names joins mix. Fixes
#9910
#10311
(
Artem Zuikov
)
Fix queries with
max_bytes_before_external_group_by
.
#10302
(
Artem Zuikov
)
Fix the issue with limiting maximum recursion depth in parser in certain cases. This fixes
#10283
This fix may introduce minor incompatibility: long and deep queries via clickhouse-client may refuse to work, and you should adjust settings
max_query_size
and
max_parser_depth
accordingly.
#10295
(
alexey-milovidov
)
Allow to use
count(*)
with multiple JOINs. Fixes
#9853
#10291
(
Artem Zuikov
)
Fix error
Pipeline stuck
with
max_rows_to_group_by
and
group_by_overflow_mode = 'break'
.
#10279
(
Nikolai Kochetov
)
Fix 'Cannot add column' error while creating
range_hashed
dictionary using DDL query. Fixes
#10093
.
#10235
(
alesapin
)
Fix rare possible exception
Cannot drain connections: cancel first
.
#10239
(
Nikolai Kochetov
)
Fixed bug where ClickHouse would throw "Unknown function lambda." error message when user tries to run ALTER UPDATE/DELETE on tables with ENGINE = Replicated*. Check for nondeterministic functions now handles lambda expressions correctly.
#10237
(
Alexander Kazakov
)
Fixed reasonably rare segfault in StorageSystemTables that happens when SELECT ... FROM system.tables is run on a database with Lazy engine.
#10209
(
Alexander Kazakov
)
Fix possible infinite query execution when the query actually should stop on LIMIT, while reading from infinite source like
system.numbers
or
system.zeros
.
#10206
(
Nikolai Kochetov
) | {"source_file": "2020.md"} | [
-0.004685514606535435,
0.022660940885543823,
-0.03952684625983238,
0.0030779968947172165,
-0.06612382084131241,
-0.09357552230358124,
-0.042359981685876846,
0.011833999305963516,
-0.009019482880830765,
0.052507758140563965,
0.04102880507707596,
0.018763411790132523,
-0.0014576225075870752,
... |
0230412d-ba04-4db4-aec7-303aa2e6afd9 | Fix possible infinite query execution when the query actually should stop on LIMIT, while reading from infinite source like
system.numbers
or
system.zeros
.
#10206
(
Nikolai Kochetov
)
Fixed "generateRandom" function for Date type. This fixes
#9973
. Fix an edge case when dates with year 2106 are inserted to MergeTree tables with old-style partitioning but partitions are named with year 1970.
#10218
(
alexey-milovidov
)
Convert types if the table definition of a View does not correspond to the SELECT query. This fixes
#10180
and
#10022
#10217
(
alexey-milovidov
)
Fix
parseDateTimeBestEffort
for strings in RFC-2822 when day of week is Tuesday or Thursday. This fixes
#10082
#10214
(
alexey-milovidov
)
Fix column names of constants inside JOIN that may clash with names of constants outside of JOIN.
#10207
(
alexey-milovidov
)
Fix move-to-prewhere optimization in presense of arrayJoin functions (in certain cases). This fixes
#10092
#10195
(
alexey-milovidov
)
Fix issue with separator appearing in SCRAMBLE for native mysql-connector-java (JDBC)
#10140
(
BohuTANG
)
Fix using the current database for an access checking when the database isn't specified.
#10192
(
Vitaly Baranov
)
Fix ALTER of tables with compact parts.
#10130
(
Anton Popov
)
Add the ability to relax the restriction on non-deterministic functions usage in mutations with
allow_nondeterministic_mutations
setting.
#10186
(
filimonov
)
Fix
DROP TABLE
invoked for dictionary
#10165
(
Azat Khuzhin
)
Convert blocks if structure does not match when doing
INSERT
into Distributed table
#10135
(
Azat Khuzhin
)
The number of rows was logged incorrectly (as sum across all parts) when inserted block is split by parts with partition key.
#10138
(
alexey-milovidov
)
Add some arguments check and support identifier arguments for MySQL Database Engine
#10077
(
Winter Zhang
)
Fix incorrect
index_granularity_bytes
check while creating new replica. Fixes
#10098
.
#10121
(
alesapin
)
Fix bug in
CHECK TABLE
query when table contain skip indices.
#10068
(
alesapin
)
Fix Distributed-over-Distributed with the only one shard in a nested table
#9997
(
Azat Khuzhin
)
Fix possible rows loss for queries with
JOIN
and
UNION ALL
. Fixes
#9826
,
#10113
. ...
#10099
(
Nikolai Kochetov
)
Fix bug in dictionary when local clickhouse server is used as source. It may caused memory corruption if types in dictionary and source are not compatible.
#10071
(
alesapin
)
Fixed replicated tables startup when updating from an old ClickHouse version where
/table/replicas/replica_name/metadata
node does not exist. Fixes
#10037
.
#10095
(
alesapin
) | {"source_file": "2020.md"} | [
-0.049597494304180145,
0.014284427277743816,
0.009629483334720135,
0.007112376391887665,
-0.04719902202486992,
-0.0227064061909914,
-0.0171396192163229,
0.018898043781518936,
-0.0388779416680336,
-0.01973835751414299,
-0.039859820157289505,
-0.035167332738637924,
-0.03231915086507797,
-0.0... |
b59a3c9a-d2d9-4369-88cb-9113218258f2 | Fixed replicated tables startup when updating from an old ClickHouse version where
/table/replicas/replica_name/metadata
node does not exist. Fixes
#10037
.
#10095
(
alesapin
)
Fix error
Cannot clone block with columns because block has 0 columns ... While executing GroupingAggregatedTransform
. It happened when setting
distributed_aggregation_memory_efficient
was enabled, and distributed query read aggregating data with mixed single and two-level aggregation from different shards.
#10063
(
Nikolai Kochetov
)
Fix deadlock when database with materialized view failed attach at start
#10054
(
Azat Khuzhin
)
Fix a segmentation fault that could occur in GROUP BY over string keys containing trailing zero bytes (
#8636
,
#8925
). ...
#10025
(
Alexander Kuzmenkov
)
Fix wrong results of distributed queries when alias could override qualified column name. Fixes
#9672
#9714
#9972
(
Artem Zuikov
)
Fix possible deadlock in
SYSTEM RESTART REPLICAS
#9955
(
tavplubix
)
Fix the number of threads used for remote query execution (performance regression, since 20.3). This happened when query from
Distributed
table was executed simultaneously on local and remote shards. Fixes
#9965
#9971
(
Nikolai Kochetov
)
Fixed
DeleteOnDestroy
logic in
ATTACH PART
which could lead to automatic removal of attached part and added few tests
#9410
(
Vladimir Chebotarev
)
Fix a bug with
ON CLUSTER
DDL queries freezing on server startup.
#9927
(
Gagan Arneja
)
Fix bug in which the necessary tables weren't retrieved at one of the processing stages of queries to some databases. Fixes
#9699
.
#9949
(
achulkov2
)
Fix 'Not found column in block' error when
JOIN
appears with
TOTALS
. Fixes
#9839
#9939
(
Artem Zuikov
)
Fix parsing multiple hosts set in the CREATE USER command
#9924
(
Vitaly Baranov
)
Fix
TRUNCATE
for Join table engine (
#9917
).
#9920
(
Amos Bird
)
Fix race condition between drop and optimize in
ReplicatedMergeTree
.
#9901
(
alesapin
)
Fix
DISTINCT
for Distributed when
optimize_skip_unused_shards
is set.
#9808
(
Azat Khuzhin
)
Fix "scalar does not exist" error in ALTERs (
#9878
). ...
#9904
(
Amos Bird
)
Fix error with qualified names in
distributed_product_mode=\'local\'
. Fixes
#4756
#9891
(
Artem Zuikov
)
For INSERT queries shards now do clamp the settings from the initiator to their constraints instead of throwing an exception. This fix allows to send INSERT queries to a shard with another constraints. This change improves fix
#9447
.
#9852
(
Vitaly Baranov
)
Add some retries when commiting offsets to Kafka broker, since it can reject commit if during
offsets.commit.timeout.ms
there were no enough replicas available for the
__consumer_offsets
topic
#9884
(
filimonov
)
Fix Distributed engine behavior when virtual columns of the underlying table used in
WHERE
#9847
(
Azat Khuzhin
) | {"source_file": "2020.md"} | [
-0.05073963850736618,
-0.05634288117289543,
-0.06195197254419327,
-0.015089120715856552,
-0.041591670364141464,
-0.07516065984964371,
-0.07835980504751205,
-0.04074964299798012,
0.029309069737792015,
0.061261169612407684,
0.05196402966976166,
0.01862570270895958,
0.027323342859745026,
-0.0... |
0ecd5b07-f734-4210-a0ea-81071fe93c75 | Fix Distributed engine behavior when virtual columns of the underlying table used in
WHERE
#9847
(
Azat Khuzhin
)
Fixed some cases when timezone of the function argument wasn't used properly.
#9574
(
Vasily Nemkov
)
Fix 'Different expressions with the same alias' error when query has PREWHERE and WHERE on distributed table and
SET distributed_product_mode = 'local'
.
#9871
(
Artem Zuikov
)
Fix mutations excessive memory consumption for tables with a composite primary key. This fixes
#9850
.
#9860
(
alesapin
)
Fix calculating grants for introspection functions from the setting
allow_introspection_functions
.
#9840
(
Vitaly Baranov
)
Fix max_distributed_connections (w/ and w/o Processors)
#9673
(
Azat Khuzhin
)
Fix possible exception
Got 0 in totals chunk, expected 1
on client. It happened for queries with
JOIN
in case if right joined table had zero rows. Example:
select * from system.one t1 join system.one t2 on t1.dummy = t2.dummy limit 0 FORMAT TabSeparated;
. Fixes
#9777
. ...
#9823
(
Nikolai Kochetov
)
Fix 'COMMA to CROSS JOIN rewriter is not enabled or cannot rewrite query' error in case of subqueries with COMMA JOIN out of tables lists (i.e. in WHERE). Fixes
#9782
#9830
(
Artem Zuikov
)
Fix server crashing when
optimize_skip_unused_shards
is set and expression for key can't be converted to its field type
#9804
(
Azat Khuzhin
)
Fix empty string handling in
splitByString
.
#9767
(
hcz
)
Fix broken
ALTER TABLE DELETE COLUMN
query for compact parts.
#9779
(
alesapin
)
Fixed missing
rows_before_limit_at_least
for queries over http (with processors pipeline). Fixes
#9730
#9757
(
Nikolai Kochetov
)
Fix excessive memory consumption in
ALTER
queries (mutations). This fixes
#9533
and
#9670
.
#9754
(
alesapin
)
Fix possible permanent "Cannot schedule a task" error.
#9154
(
Azat Khuzhin
)
Fix bug in backquoting in external dictionaries DDL. Fixes
#9619
.
#9734
(
alesapin
)
Fixed data race in
text_log
. It does not correspond to any real bug.
#9726
(
alexey-milovidov
)
Fix bug in a replication that does not allow replication to work if the user has executed mutations on the previous version. This fixes
#9645
.
#9652
(
alesapin
)
Fixed incorrect internal function names for
sumKahan
and
sumWithOverflow
. It led to exception while using this functions in remote queries.
#9636
(
Azat Khuzhin
)
Add setting
use_compact_format_in_distributed_parts_names
which allows to write files for
INSERT
queries into
Distributed
table with more compact format. This fixes
#9647
.
#9653
(
alesapin
)
Fix RIGHT and FULL JOIN with LowCardinality in JOIN keys.
#9610
(
Artem Zuikov
)
Fix possible exceptions
Size of filter does not match size of column
and
Invalid number of rows in Chunk
in
MergeTreeRangeReader
. They could appear while executing
PREWHERE
in some cases.
#9612
(
Anton Popov
) | {"source_file": "2020.md"} | [
-0.0027572379913181067,
-0.00031031572143547237,
-0.05027138814330101,
-0.01738528534770012,
-0.005784175358712673,
-0.0920296311378479,
-0.03751415014266968,
0.06397638469934464,
-0.011875467374920845,
0.05817847326397896,
0.030033482238650322,
0.02152782306075096,
0.024757005274295807,
-... |
f31a936a-f5eb-4d57-b3b3-1fe0ec20ad10 | Allow
ALTER ON CLUSTER
of Distributed tables with internal replication. This fixes
#3268
#9617
(
shinoi2
)
Fix issue when timezone was not preserved if you write a simple arithmetic expression like
time + 1
(in contrast to an expression like
time + INTERVAL 1 SECOND
). This fixes
#5743
#9323
(
alexey-milovidov
)
Improvement {#improvement-16}
Use time zone when comparing DateTime with string literal. This fixes
#5206
.
#10515
(
alexey-milovidov
)
Print verbose diagnostic info if Decimal value cannot be parsed from text input format.
#10205
(
alexey-milovidov
)
Add tasks/memory metrics for distributed/buffer schedule pools
#10449
(
Azat Khuzhin
)
Display result as soon as it's ready for SELECT DISTINCT queries in clickhouse-local and HTTP interface. This fixes
#8951
#9559
(
alexey-milovidov
)
Allow to use
SAMPLE OFFSET
query instead of
cityHash64(PRIMARY KEY) % N == n
for splitting in
clickhouse-copier
. To use this feature, pass
--experimental-use-sample-offset 1
as a command line argument.
#10414
(
Nikita Mikhaylov
)
Allow to parse BOM in TSV if the first column cannot contain BOM in its value. This fixes
#10301
#10424
(
alexey-milovidov
)
Add Avro nested fields insert support
#10354
(
Andrew Onyshchuk
)
Allowed to alter column in non-modifying data mode when the same type is specified.
#10382
(
Vladimir Chebotarev
)
Auto
distributed_group_by_no_merge
on GROUP BY sharding key (if
optimize_skip_unused_shards
is set)
#10341
(
Azat Khuzhin
)
Optimize queries with LIMIT/LIMIT BY/ORDER BY for distributed with GROUP BY sharding_key
#10373
(
Azat Khuzhin
)
Added a setting
max_server_memory_usage
to limit total memory usage of the server. The metric
MemoryTracking
is now calculated without a drift. The setting
max_memory_usage_for_all_queries
is now obsolete and does nothing. This closes
#10293
.
#10362
(
alexey-milovidov
)
Add config option
system_tables_lazy_load
. If it's set to false, then system tables with logs are loaded at the server startup.
Alexander Burmak
,
Svyatoslav Tkhon Il Pak
,
#9642
#10359
(
alexey-milovidov
)
Use background thread pool (background_schedule_pool_size) for distributed sends
#10263
(
Azat Khuzhin
)
Use background thread pool for background buffer flushes.
#10315
(
Azat Khuzhin
)
Support for one special case of removing incompletely written parts. This fixes
#9940
.
#10221
(
alexey-milovidov
)
Use isInjective() over manual list of such functions for GROUP BY optimization.
#10342
(
Azat Khuzhin
)
Avoid printing error message in log if client sends RST packet immediately on connect. It is typical behaviour of IPVS balancer with keepalived and VRRP. This fixes
#1851
#10274
(
alexey-milovidov
)
Allow to parse
+inf
for floating point types. This closes
#1839
#10272
(
alexey-milovidov
)
Implemented
generateRandom
table function for Nested types. This closes
#9903
#10219
(
alexey-milovidov
) | {"source_file": "2020.md"} | [
0.031228331848978996,
-0.018937762826681137,
-0.050130005925893784,
0.04416564851999283,
-0.05784422904253006,
-0.057906318455934525,
-0.027545934543013573,
-0.017521260306239128,
-0.043663859367370605,
0.03096953220665455,
-0.010182544589042664,
-0.0886477380990982,
0.05611446127295494,
-... |
ddf600f7-8984-4da6-9d9a-55e1691e951e | Implemented
generateRandom
table function for Nested types. This closes
#9903
#10219
(
alexey-milovidov
)
Provide
max_allowed_packed
in MySQL compatibility interface that will help some clients to communicate with ClickHouse via MySQL protocol.
#10199
(
BohuTANG
)
Allow literals for GLOBAL IN (i.e.
SELECT * FROM remote('localhost', system.one) WHERE dummy global in (0)
)
#10196
(
Azat Khuzhin
)
Fix various small issues in interactive mode of clickhouse-client
#10194
(
alexey-milovidov
)
Avoid superfluous dictionaries load (system.tables, DROP/SHOW CREATE TABLE)
#10164
(
Azat Khuzhin
)
Update to RWLock: timeout parameter for getLock() + implementation reworked to be phase fair
#10073
(
Alexander Kazakov
)
Enhanced compatibility with native mysql-connector-java(JDBC)
#10021
(
BohuTANG
)
The function
toString
is considered monotonic and can be used for index analysis even when applied in tautological cases with String or LowCardinality(String) argument.
#10110
(
Amos Bird
)
Add
ON CLUSTER
clause support to commands
{CREATE|DROP} USER/ROLE/ROW POLICY/SETTINGS PROFILE/QUOTA
,
GRANT
.
#9811
(
Vitaly Baranov
)
Virtual hosted-style support for S3 URI
#9998
(
Pavel Kovalenko
)
Now layout type for dictionaries with no arguments can be specified without round brackets in dictionaries DDL-queries. Fixes
#10057
.
#10064
(
alesapin
)
Add ability to use number ranges with leading zeros in filepath
#9989
(
Olga Khvostikova
)
Better memory usage in CROSS JOIN.
#10029
(
Artem Zuikov
)
Try to connect to all shards in cluster when getting structure of remote table and skip_unavailable_shards is set.
#7278
(
nvartolomei
)
Add
total_rows
/
total_bytes
into the
system.tables
table.
#9919
(
Azat Khuzhin
)
System log tables now use polymorpic parts by default.
#9905
(
Anton Popov
)
Add type column into system.settings/merge_tree_settings
#9909
(
Azat Khuzhin
)
Check for available CPU instructions at server startup as early as possible.
#9888
(
alexey-milovidov
)
Remove
ORDER BY
stage from mutations because we read from a single ordered part in a single thread. Also add check that the rows in mutation are ordered by sorting key and this order is not violated.
#9886
(
alesapin
)
Implement operator LIKE for FixedString at left hand side. This is needed to better support TPC-DS queries.
#9890
(
alexey-milovidov
)
Add
force_optimize_skip_unused_shards_no_nested
that will disable
force_optimize_skip_unused_shards
for nested Distributed table
#9812
(
Azat Khuzhin
)
Now columns size is calculated only once for MergeTree data parts.
#9827
(
alesapin
)
Evaluate constant expressions for
optimize_skip_unused_shards
(i.e.
SELECT * FROM foo_dist WHERE key=xxHash32(0)
)
#8846
(
Azat Khuzhin
)
Check for using
Date
or
DateTime
column from TTL expressions was removed.
#9967
(
Vladimir Chebotarev
) | {"source_file": "2020.md"} | [
-0.0021910234354436398,
-0.0349452868103981,
-0.05977775901556015,
0.03298602253198624,
-0.05436554178595543,
-0.05996843799948692,
0.0890287533402443,
0.014663546346127987,
-0.07004505395889282,
0.0635828897356987,
0.001007716404274106,
-0.05510827153921127,
0.11956906318664551,
-0.036383... |
bf843346-f2df-413c-97e3-5b2ec8bd4265 | Check for using
Date
or
DateTime
column from TTL expressions was removed.
#9967
(
Vladimir Chebotarev
)
DiskS3 hard links optimal implementation.
#9760
(
Pavel Kovalenko
)
If
set multiple_joins_rewriter_version = 2
enables second version of multiple JOIN rewrites that keeps not clashed column names as is. It supports multiple JOINs with
USING
and allow
select *
for JOINs with subqueries.
#9739
(
Artem Zuikov
)
Implementation of "non-blocking" alter for StorageMergeTree
#9606
(
alesapin
)
Add MergeTree full support for DiskS3
#9646
(
Pavel Kovalenko
)
Extend
splitByString
to support empty strings as separators.
#9742
(
hcz
)
Add a
timestamp_ns
column to
system.trace_log
. It contains a high-definition timestamp of the trace event, and allows to build timelines of thread profiles ("flame charts").
#9696
(
Alexander Kuzmenkov
)
When the setting
send_logs_level
is enabled, avoid intermixing of log messages and query progress.
#9634
(
Azat Khuzhin
)
Added support of
MATERIALIZE TTL IN PARTITION
.
#9581
(
Vladimir Chebotarev
)
Support complex types inside Avro nested fields
#10502
(
Andrew Onyshchuk
)
Performance Improvement {#performance-improvement-11}
Better insert logic for right table for Partial MergeJoin.
#10467
(
Artem Zuikov
)
Improved performance of row-oriented formats (more than 10% for CSV and more than 35% for Avro in case of narrow tables).
#10503
(
Andrew Onyshchuk
)
Improved performance of queries with explicitly defined sets at right side of IN operator and tuples on the left side.
#10385
(
Anton Popov
)
Use less memory for hash table in HashJoin.
#10416
(
Artem Zuikov
)
Special HashJoin over StorageDictionary. Allow rewrite
dictGet()
functions with JOINs. It's not backward incompatible itself but could uncover
#8400
on some installations.
#10133
(
Artem Zuikov
)
Enable parallel insert of materialized view when its target table supports.
#10052
(
vxider
)
Improved performance of index analysis with monotonic functions.
#9607
#10026
(
Anton Popov
)
Using SSE2 or SSE4.2 SIMD intrinsics to speed up tokenization in bloom filters.
#9968
(
Vasily Nemkov
)
Improved performance of queries with explicitly defined sets at right side of
IN
operator. This fixes performance regression in version 20.3.
#9740
(
Anton Popov
)
Now clickhouse-copier splits each partition in number of pieces and copies them independently.
#9075
(
Nikita Mikhaylov
)
Adding more aggregation methods. For example TPC-H query 1 will now pick
FixedHashMap<UInt16, AggregateDataPtr>
and gets 25% performance gain
#9829
(
Amos Bird
)
Use single row counter for multiple streams in pre-limit transform. This helps to avoid uniting pipeline streams in queries with
limit
but without
order by
(like
select f(x) from (select x from t limit 1000000000)
) and use multiple threads for further processing.
#9602
(
Nikolai Kochetov
) | {"source_file": "2020.md"} | [
-0.01928078942000866,
0.005304883699864149,
-0.005400060676038265,
0.003925623372197151,
-0.012547857128083706,
-0.06312655657529831,
-0.01782706193625927,
0.0516250878572464,
0.0566653348505497,
0.01825631782412529,
0.002608670387417078,
-0.04292404651641846,
0.00929226353764534,
-0.03590... |
48b6ead6-2c74-490c-ab15-6b95ae732ca7 | Build/Testing/Packaging Improvement {#buildtestingpackaging-improvement-15}
Use a fork of AWS SDK libraries from ClickHouse-Extras
#10527
(
Pavel Kovalenko
)
Add integration tests for new ALTER RENAME COLUMN query.
#10654
(
vzakaznikov
)
Fix possible signed integer overflow in invocation of function
now64
with wrong arguments. This fixes
#8973
#10511
(
alexey-milovidov
)
Split fuzzer and sanitizer configurations to make build config compatible with Oss-fuzz.
#10494
(
kyprizel
)
Fixes for clang-tidy on clang-10.
#10420
(
alexey-milovidov
)
Display absolute paths in error messages. Otherwise KDevelop fails to navigate to correct file and opens a new file instead.
#10434
(
alexey-milovidov
)
Added
ASAN_OPTIONS
environment variable to investigate errors in CI stress tests with Address sanitizer.
#10440
(
Nikita Mikhaylov
)
Enable ThinLTO for clang builds (experimental).
#10435
(
alexey-milovidov
)
Remove accidential dependency on Z3 that may be introduced if the system has Z3 solver installed.
#10426
(
alexey-milovidov
)
Move integration tests docker files to docker/ directory.
#10335
(
Ilya Yatsishin
)
Allow to use
clang-10
in CI. It ensures that
#10238
is fixed.
#10384
(
alexey-milovidov
)
Update OpenSSL to upstream master. Fixed the issue when TLS connections may fail with the message
OpenSSL SSL_read: error:14094438:SSL routines:ssl3_read_bytes:tlsv1 alert internal error
and
SSL Exception: error:2400006E:random number generator::error retrieving entropy
. The issue was present in version 20.1.
#8956
(
alexey-milovidov
)
Fix clang-10 build.
#10238
#10370
(
Amos Bird
)
Add performance test for
Parallel INSERT for materialized view
.
#10345
(
vxider
)
Fix flaky test
test_settings_constraints_distributed.test_insert_clamps_settings
.
#10346
(
Vitaly Baranov
)
Add util to test results upload in CI ClickHouse
#10330
(
Ilya Yatsishin
)
Convert test results to JSONEachRow format in junit_to_html tool
#10323
(
Ilya Yatsishin
)
Update cctz.
#10215
(
alexey-milovidov
)
Allow to create HTML report from the purest JUnit XML report.
#10247
(
Ilya Yatsishin
)
Update the check for minimal compiler version. Fix the root cause of the issue
#10250
#10256
(
alexey-milovidov
)
Initial support for live view tables over distributed
#10179
(
vzakaznikov
)
Fix (false) MSan report in MergeTreeIndexFullText. The issue first appeared in
#9968
.
#10801
(
alexey-milovidov
)
clickhouse-docker-util
#10151
(
filimonov
)
Update pdqsort to recent version
#10171
(
Ivan
)
Update libdivide to v3.0
#10169
(
Ivan
)
Add check with enabled polymorphic parts.
#10086
(
Anton Popov
)
Add cross-compile build for FreeBSD. This fixes
#9465
#9643
(
Ivan
)
Add performance test for
#6924
#6980
(
filimonov
)
Add support of
/dev/null
in the
File
engine for better performance testing
#8455
(
Amos Bird
) | {"source_file": "2020.md"} | [
-0.09099017083644867,
0.0575842522084713,
-0.013303839601576328,
-0.028614237904548645,
0.01083039678633213,
-0.07661694288253784,
-0.05861631780862808,
0.0449160672724247,
-0.03919529542326927,
0.01267657708376646,
0.015980122610926628,
-0.11192851513624191,
0.006417433265596628,
-0.02605... |
bd64d8d8-cc79-4a3b-84c7-e58d8bb6544a | Add performance test for
#6924
#6980
(
filimonov
)
Add support of
/dev/null
in the
File
engine for better performance testing
#8455
(
Amos Bird
)
Move all folders inside /dbms one level up
#9974
(
Ivan
)
Add a test that checks that read from MergeTree with single thread is performed in order. Addition to
#9670
#9762
(
alexey-milovidov
)
Fix the
00964_live_view_watch_events_heartbeat.py
test to avoid race condition.
#9944
(
vzakaznikov
)
Fix integration test
test_settings_constraints
#9962
(
Vitaly Baranov
)
Every function in its own file, part 12.
#9922
(
alexey-milovidov
)
Added performance test for the case of extremely slow analysis of array of tuples.
#9872
(
alexey-milovidov
)
Update zstd to 1.4.4. It has some minor improvements in performance and compression ratio. If you run replicas with different versions of ClickHouse you may see reasonable error messages
Data after merge is not byte-identical to data on another replicas.
with explanation. These messages are Ok and you should not worry.
#10663
(
alexey-milovidov
)
Fix TSan report in
system.stack_trace
.
#9832
(
alexey-milovidov
)
Removed dependency on
clock_getres
.
#9833
(
alexey-milovidov
)
Added identifier names check with clang-tidy.
#9799
(
alexey-milovidov
)
Update "builder" docker image. This image is not used in CI but is useful for developers.
#9809
(
alexey-milovidov
)
Remove old
performance-test
tool that is no longer used in CI.
clickhouse-performance-test
is great but now we are using way superior tool that is doing comparison testing with sophisticated statistical formulas to achieve confident results regardless to various changes in environment.
#9796
(
alexey-milovidov
)
Added most of clang-static-analyzer checks.
#9765
(
alexey-milovidov
)
Update Poco to 1.9.3 in preparation for MongoDB URI support.
#6892
(
Alexander Kuzmenkov
)
Fix build with
-DUSE_STATIC_LIBRARIES=0 -DENABLE_JEMALLOC=0
#9651
(
Artem Zuikov
)
For change log script, if merge commit was cherry-picked to release branch, take PR name from commit description.
#9708
(
Nikolai Kochetov
)
Support
vX.X-conflicts
tag in backport script.
#9705
(
Nikolai Kochetov
)
Fix
auto-label
for backporting script.
#9685
(
Nikolai Kochetov
)
Use libc++ in Darwin cross-build to make it consistent with native build.
#9665
(
Hui Wang
)
Fix flacky test
01017_uniqCombined_memory_usage
. Continuation of
#7236
.
#9667
(
alexey-milovidov
)
Fix build for native macOS Clang compiler
#9649
(
Ivan
)
Allow to add various glitches around
pthread_mutex_lock
,
pthread_mutex_unlock
functions.
#9635
(
alexey-milovidov
)
Add support for
clang-tidy
in
packager
script.
#9625
(
alexey-milovidov
)
Add ability to use unbundled msgpack.
#10168
(
Azat Khuzhin
)
ClickHouse release v20.3 {#clickhouse-release-v203}
ClickHouse release v20.3.21.2-lts, 2020-11-02 {#clickhouse-release-v203212-lts-2020-11-02} | {"source_file": "2020.md"} | [
-0.026752879843115807,
-0.02677794173359871,
-0.010546128265559673,
0.007134497631341219,
0.057566575706005096,
-0.14245934784412384,
-0.036431584507226944,
-0.0015266627306118608,
-0.021939542144536972,
0.0042459978722035885,
-0.0028068916872143745,
0.03472216799855232,
-0.01217294391244649... |
72cb83ea-e476-475a-bb4b-2b661ce20694 | ClickHouse release v20.3 {#clickhouse-release-v203}
ClickHouse release v20.3.21.2-lts, 2020-11-02 {#clickhouse-release-v203212-lts-2020-11-02}
Bug Fix {#bug-fix-33}
Fix dictGet in sharding_key (and similar places, i.e. when the function context is stored permanently).
#16205
(
Azat Khuzhin
).
Fix incorrect empty result for query from
Distributed
table if query has
WHERE
,
PREWHERE
and
GLOBAL IN
. Fixes
#15792
.
#15933
(
Nikolai Kochetov
).
Fix missing or excessive headers in
TSV/CSVWithNames
formats. This fixes
#12504
.
#13343
(
Azat Khuzhin
).
ClickHouse release v20.3.20.6-lts, 2020-10-09 {#clickhouse-release-v203206-lts-2020-10-09}
Bug Fix {#bug-fix-34}
Mutation might hang waiting for some non-existent part after
MOVE
or
REPLACE PARTITION
or, in rare cases, after
DETACH
or
DROP PARTITION
. It's fixed.
#15724
,
#15537
(
tavplubix
).
Fix hang of queries with a lot of subqueries to same table of
MySQL
engine. Previously, if there were more than 16 subqueries to same
MySQL
table in query, it hang forever.
#15299
(
Anton Popov
).
Fix 'Unknown identifier' in GROUP BY when query has JOIN over Merge table.
#15242
(
Artem Zuikov
).
Fix to make predicate push down work when subquery contains finalizeAggregation function. Fixes
#14847
.
#14937
(
filimonov
).
Concurrent
ALTER ... REPLACE/MOVE PARTITION ...
queries might cause deadlock. It's fixed.
#13626
(
tavplubix
).
ClickHouse release v20.3.19.4-lts, 2020-09-18 {#clickhouse-release-v203194-lts-2020-09-18}
Bug Fix {#bug-fix-35}
Fix rare error in
SELECT
queries when the queried column has
DEFAULT
expression which depends on the other column which also has
DEFAULT
and not present in select query and not exists on disk. Partially fixes
#14531
.
#14845
(
alesapin
).
Fix bug when
ALTER UPDATE
mutation with Nullable column in assignment expression and constant value (like
UPDATE x = 42
) leads to incorrect value in column or segfault. Fixes
#13634
,
#14045
.
#14646
(
alesapin
).
Fix wrong Decimal multiplication result caused wrong decimal scale of result column.
#14603
(
Artem Zuikov
).
Improvement {#improvement-17}
Support custom codecs in compact parts.
#12183
(
Anton Popov
).
ClickHouse release v20.3.18.10-lts, 2020-09-08 {#clickhouse-release-v2031810-lts-2020-09-08}
Bug Fix {#bug-fix-36}
Stop query execution if exception happened in
PipelineExecutor
itself. This could prevent rare possible query hung. Continuation of
#14334
.
#14402
(
Nikolai Kochetov
).
Fixed the behaviour when sometimes cache-dictionary returned default value instead of present value from source.
#13624
(
Nikita Mikhaylov
).
Fix parsing row policies from users.xml when names of databases or tables contain dots. This fixes
#5779
,
#12527
.
#13199
(
Vitaly Baranov
).
Fix CAST(Nullable(String), Enum()).
#12745
(
Azat Khuzhin
). | {"source_file": "2020.md"} | [
-0.045918017625808716,
0.008324391208589077,
0.03883064538240433,
0.012759610079228878,
0.05038563162088394,
-0.08146408945322037,
0.01623985730111599,
-0.07016198337078094,
-0.006246812175959349,
0.06669081002473831,
0.06403905153274536,
-0.04264222830533981,
0.033573951572179794,
-0.0455... |
be2aa18f-ecde-49e8-b09b-f95ea1668ebb | Fix CAST(Nullable(String), Enum()).
#12745
(
Azat Khuzhin
).
Fixed data race in
text_log
. It does not correspond to any real bug.
#9726
(
alexey-milovidov
).
Improvement {#improvement-18}
Fix wrong error for long queries. It was possible to get syntax error other than
Max query size exceeded
for correct query.
#13928
(
Nikolai Kochetov
).
Return NULL/zero when value is not parsed completely in parseDateTimeBestEffortOrNull/Zero functions. This fixes
#7876
.
#11653
(
alexey-milovidov
).
Performance Improvement {#performance-improvement-12}
Slightly optimize very short queries with LowCardinality.
#14129
(
Anton Popov
).
Build/Testing/Packaging Improvement {#buildtestingpackaging-improvement-16}
Fix UBSan report (adding zero to nullptr) in HashTable that appeared after migration to clang-10.
#10638
(
alexey-milovidov
).
ClickHouse release v20.3.17.173-lts, 2020-08-15 {#clickhouse-release-v20317173-lts-2020-08-15}
Bug Fix {#bug-fix-37}
Fix crash in JOIN with StorageMerge and
set enable_optimize_predicate_expression=1
.
#13679
(
Artem Zuikov
).
Fix invalid return type for comparison of tuples with
NULL
elements. Fixes
#12461
.
#13420
(
Nikolai Kochetov
).
Fix queries with constant columns and
ORDER BY
prefix of primary key.
#13396
(
Anton Popov
).
Return passed number for numbers with MSB set in roundUpToPowerOfTwoOrZero().
#13234
(
Azat Khuzhin
).
ClickHouse release v20.3.16.165-lts 2020-08-10 {#clickhouse-release-v20316165-lts-2020-08-10}
Bug Fix {#bug-fix-38}
Fixed error in
parseDateTimeBestEffort
function when unix timestamp was passed as an argument. This fixes
#13362
.
#13441
(
alexey-milovidov
).
Fixed potentially low performance and slightly incorrect result for
uniqExact
,
topK
,
sumDistinct
and similar aggregate functions called on Float types with
NaN
values. It also triggered assert in debug build. This fixes
#12491
.
#13254
(
alexey-milovidov
).
Fixed function if with nullable constexpr as cond that is not literal NULL. Fixes
#12463
.
#13226
(
alexey-milovidov
).
Fixed assert in
arrayElement
function in case of array elements are Nullable and array subscript is also Nullable. This fixes
#12172
.
#13224
(
alexey-milovidov
).
Fixed unnecessary limiting for the number of threads for selects from local replica.
#12840
(
Nikolai Kochetov
).
Fixed possible extra overflow row in data which could appear for queries
WITH TOTALS
.
#12747
(
Nikolai Kochetov
).
Fixed performance with large tuples, which are interpreted as functions in
IN
section. The case when user write
WHERE x IN tuple(1, 2, ...)
instead of
WHERE x IN (1, 2, ...)
for some obscure reason.
#12700
(
Anton Popov
).
Fixed memory tracking for input_format_parallel_parsing (by attaching thread to group).
#12672
(
Azat Khuzhin
).
Fixed
#12293
allow push predicate when subquery contains with clause.
#12663
(
Winter Zhang
). | {"source_file": "2020.md"} | [
-0.003634485648944974,
0.04499530792236328,
-0.022997485473752022,
-0.015555973164737225,
-0.06593305617570877,
-0.04123375192284584,
-0.044091418385505676,
0.05142374709248543,
-0.12118811905384064,
0.025980878621339798,
0.022281428799033165,
-0.08001133799552917,
0.0015631342539563775,
-... |
edeb70e1-9983-4e85-8f3d-3660aa82513f | Fixed
#12293
allow push predicate when subquery contains with clause.
#12663
(
Winter Zhang
).
Fixed
#10572
fix bloom filter index with const expression.
#12659
(
Winter Zhang
).
Fixed SIGSEGV in StorageKafka when broker is unavailable (and not only).
#12658
(
Azat Khuzhin
).
Fixed race condition in external dictionaries with cache layout which can lead server crash.
#12566
(
alesapin
).
Fixed bug which lead to broken old parts after
ALTER DELETE
query when
enable_mixed_granularity_parts=1
. Fixes
#12536
.
#12543
(
alesapin
).
Better exception for function
in
with invalid number of arguments.
#12529
(
Anton Popov
).
Fixed performance issue, while reading from compact parts.
#12492
(
Anton Popov
).
Fixed the deadlock if
text_log
is enabled.
#12452
(
alexey-milovidov
).
Fixed possible segfault if StorageMerge. Closes
#12054
.
#12401
(
tavplubix
).
Fixed
TOTALS/ROLLUP/CUBE
for aggregate functions with
-State
and
Nullable
arguments. This fixes
#12163
.
#12376
(
alexey-milovidov
).
Fixed order of columns in
WITH FILL
modifier. Previously order of columns of
ORDER BY
statement wasn't respected.
#12306
(
Anton Popov
).
Avoid "bad cast" exception when there is an expression that filters data by virtual columns (like
_table
in
Merge
tables) or by "index" columns in system tables such as filtering by database name when querying from
system.tables
, and this expression returns
Nullable
type. This fixes
#12166
.
#12305
(
alexey-milovidov
).
Show error after
TrieDictionary
failed to load.
#12290
(
Vitaly Baranov
).
The function
arrayFill
worked incorrectly for empty arrays that may lead to crash. This fixes
#12263
.
#12279
(
alexey-milovidov
).
Implement conversions to the common type for
LowCardinality
types. This allows to execute UNION ALL of tables with columns of LowCardinality and other columns. This fixes
#8212
. This fixes
#4342
.
#12275
(
alexey-milovidov
).
Fixed the behaviour when during multiple sequential inserts in
StorageFile
header for some special types was written more than once. This fixed
#6155
.
#12197
(
Nikita Mikhaylov
).
Fixed logical functions for UInt8 values when they are not equal to 0 or 1.
#12196
(
Alexander Kazakov
).
Fixed
dictGet
arguments check during GROUP BY injective functions elimination.
#12179
(
Azat Khuzhin
).
Fixed wrong logic in
ALTER DELETE
that leads to deleting of records when condition evaluates to NULL. This fixes
#9088
. This closes
#12106
.
#12153
(
alexey-milovidov
).
Fixed transform of query to send to external DBMS (e.g. MySQL, ODBC) in presense of aliases. This fixes
#12032
.
#12151
(
alexey-milovidov
).
Fixed potential overflow in integer division. This fixes
#12119
.
#12140
(
alexey-milovidov
).
Fixed potential infinite loop in
greatCircleDistance
,
geoDistance
. This fixes
#12117
.
#12137
(
alexey-milovidov
). | {"source_file": "2020.md"} | [
-0.004888118710368872,
0.022785499691963196,
0.028188884258270264,
0.03330812603235245,
-0.028865739703178406,
-0.041542015969753265,
-0.0001604020071681589,
0.0077615235932171345,
-0.003175516379997134,
0.004937732592225075,
-0.008629662916064262,
-0.0002235751016996801,
-0.0044032288715243... |
4950f5f7-12a4-49a2-9aed-901fcb21e065 | Fixed potential infinite loop in
greatCircleDistance
,
geoDistance
. This fixes
#12117
.
#12137
(
alexey-milovidov
).
Avoid
There is no query
exception for materialized views with joins or with subqueries attached to system logs (system.query_log, metric_log, etc) or to engine=Buffer underlying table.
#12120
(
filimonov
).
Fixed performance for selects with
UNION
caused by wrong limit for the total number of threads. Fixes
#12030
.
#12103
(
Nikolai Kochetov
).
Fixed segfault with
-StateResample
combinators.
#12092
(
Anton Popov
).
Fixed unnecessary limiting the number of threads for selects from
VIEW
. Fixes
#11937
.
#12085
(
Nikolai Kochetov
).
Fixed possible crash while using wrong type for
PREWHERE
. Fixes
#12053
,
#12060
.
#12060
(
Nikolai Kochetov
).
Fixed error
Expected single dictionary argument for function
for function
defaultValueOfArgumentType
with
LowCardinality
type. Fixes
#11808
.
#12056
(
Nikolai Kochetov
).
Fixed error
Cannot capture column
for higher-order functions with
Tuple(LowCardinality)
argument. Fixes
#9766
.
#12055
(
Nikolai Kochetov
).
Parse tables metadata in parallel when loading database. This fixes slow server startup when there are large number of tables.
#12045
(
tavplubix
).
Make
topK
aggregate function return Enum for Enum types. This fixes
#3740
.
#12043
(
alexey-milovidov
).
Fixed constraints check if constraint is a constant expression. This fixes
#11360
.
#12042
(
alexey-milovidov
).
Fixed incorrect comparison of tuples with
Nullable
columns. Fixes
#11985
.
#12039
(
Nikolai Kochetov
).
Fixed wrong result and potential crash when invoking function
if
with arguments of type
FixedString
with different sizes. This fixes
#11362
.
#12021
(
alexey-milovidov
).
A query with function
neighbor
as the only returned expression may return empty result if the function is called with offset
-9223372036854775808
. This fixes
#11367
.
#12019
(
alexey-milovidov
).
Fixed potential array size overflow in generateRandom that may lead to crash. This fixes
#11371
.
#12013
(
alexey-milovidov
).
Fixed potential floating point exception. This closes
#11378
.
#12005
(
alexey-milovidov
).
Fixed wrong setting name in log message at server startup.
#11997
(
alexey-milovidov
).
Fixed
Query parameter was not set
in
Values
format. Fixes
#11918
.
#11936
(
tavplubix
).
Keep aliases for substitutions in query (parametrized queries). This fixes
#11914
.
#11916
(
alexey-milovidov
).
Fixed potential floating point exception when parsing DateTime64. This fixes
#11374
.
#11875
(
alexey-milovidov
).
Fixed memory accounting via
HTTP
interface (can be significant with
wait_end_of_query=1
).
#11840
(
Azat Khuzhin
).
Fixed wrong result for
if()
with NULLs in condition.
#11807
(
Artem Zuikov
).
Parse metadata stored in zookeeper before checking for equality.
#11739
(
Azat Khuzhin
). | {"source_file": "2020.md"} | [
0.005040278192609549,
-0.05219384282827377,
-0.02675466239452362,
-0.01717095822095871,
-0.03531568869948387,
-0.07866919040679932,
0.015920065343379974,
0.06666179746389389,
-0.04747319221496582,
-0.005056480411440134,
0.0022713954094797373,
-0.07289773225784302,
-0.005779384169727564,
-0... |
55c252c5-fd7d-49aa-af32-70031d92276f | Fixed wrong result for
if()
with NULLs in condition.
#11807
(
Artem Zuikov
).
Parse metadata stored in zookeeper before checking for equality.
#11739
(
Azat Khuzhin
).
Fixed
LIMIT n WITH TIES
usage together with
ORDER BY
statement, which contains aliases.
#11689
(
Anton Popov
).
Fix potential read of uninitialized memory in cache dictionary.
#10834
(
alexey-milovidov
).
Performance Improvement {#performance-improvement-13}
Index not used for IN operator with literals, performance regression introduced around v19.3. This fixes
#10574
.
#12062
(
nvartolomei
).
ClickHouse release v20.3.12.112-lts 2020-06-25 {#clickhouse-release-v20312112-lts-2020-06-25}
Bug Fix {#bug-fix-39}
Fix rare crash caused by using
Nullable
column in prewhere condition. Continuation of
#11608
.
#11869
(
Nikolai Kochetov
).
Don't allow arrayJoin inside higher order functions. It was leading to broken protocol synchronization. This closes
#3933
.
#11846
(
alexey-milovidov
).
Fix using too many threads for queries.
#11788
(
Nikolai Kochetov
).
Fix unexpected behaviour of queries like
SELECT *, xyz.*
which were success while an error expected.
#11753
(
hexiaoting
).
Now replicated fetches will be cancelled during metadata alter.
#11744
(
alesapin
).
Fixed LOGICAL_ERROR caused by wrong type deduction of complex literals in Values input format.
#11732
(
tavplubix
).
Fix
ORDER BY ... WITH FILL
over const columns.
#11697
(
Anton Popov
).
Pass proper timeouts when communicating with XDBC bridge. Recently timeouts were not respected when checking bridge liveness and receiving meta info.
#11690
(
alexey-milovidov
).
Fix error which leads to an incorrect state of
system.mutations
. It may show that whole mutation is already done but the server still has
MUTATE_PART
tasks in the replication queue and tries to execute them. This fixes
#11611
.
#11681
(
alesapin
).
Add support for regular expressions with case-insensitive flags. This fixes
#11101
and fixes
#11506
.
#11649
(
alexey-milovidov
).
Remove trivial count query optimization if row-level security is set. In previous versions the user get total count of records in a table instead filtered. This fixes
#11352
.
#11644
(
alexey-milovidov
).
Fix bloom filters for String (data skipping indices).
#11638
(
Azat Khuzhin
).
Fix rare crash caused by using
Nullable
column in prewhere condition. (Probably it is connected with
#11572
somehow).
#11608
(
Nikolai Kochetov
).
Fix error
Block structure mismatch
for queries with sampling reading from
Buffer
table.
#11602
(
Nikolai Kochetov
).
Fix wrong exit code of the clickhouse-client, when exception.code() % 256 = 0.
#11601
(
filimonov
).
Fix trivial error in log message about "Mark cache size was lowered" at server startup. This closes
#11399
.
#11589
(
alexey-milovidov
). | {"source_file": "2020.md"} | [
-0.04668639227747917,
0.037640850991010666,
0.006095857359468937,
-0.004204281605780125,
-0.01723080687224865,
-0.046445801854133606,
0.012286023236811161,
0.001773742726072669,
-0.02218032255768776,
0.06459902971982956,
0.04100535064935684,
0.04604073241353035,
-0.030216116458177567,
0.01... |
c637e00f-141a-4548-bdf7-054d74db4b76 | Fix trivial error in log message about "Mark cache size was lowered" at server startup. This closes
#11399
.
#11589
(
alexey-milovidov
).
Fix error
Size of offsets does not match size of column
for queries with
PREWHERE column in (subquery)
and
ARRAY JOIN
.
#11580
(
Nikolai Kochetov
).
All queries in HTTP session have had the same query_id. It is fixed.
#11578
(
tavplubix
).
Now clickhouse-server docker container will prefer IPv6 checking server aliveness.
#11550
(
Ivan Starkov
).
Fix shard_num/replica_num for
<node>
(breaks use_compact_format_in_distributed_parts_names).
#11528
(
Azat Khuzhin
).
Fix memory leak when exception is thrown in the middle of aggregation with -State functions. This fixes
#8995
.
#11496
(
alexey-milovidov
).
Fix wrong results of distributed queries when alias could override qualified column name. Fixes
#9672
#9714
.
#9972
(
Artem Zuikov
).
ClickHouse release v20.3.11.97-lts 2020-06-10 {#clickhouse-release-v2031197-lts-2020-06-10}
New Feature {#new-feature-9}
Now ClickHouse controls timeouts of dictionary sources on its side. Two new settings added to cache dictionary configuration:
strict_max_lifetime_seconds
, which is
max_lifetime
by default and
query_wait_timeout_milliseconds
, which is one minute by default. The first settings is also useful with
allow_read_expired_keys
settings (to forbid reading very expired keys).
#10337
(
Nikita Mikhaylov
).
Bug Fix {#bug-fix-40}
Fix the error
Data compressed with different methods
that can happen if
min_bytes_to_use_direct_io
is enabled and PREWHERE is active and using SAMPLE or high number of threads. This fixes
#11539
.
#11540
(
alexey-milovidov
).
Fix return compressed size for codecs.
#11448
(
Nikolai Kochetov
).
Fix server crash when a column has compression codec with non-literal arguments. Fixes
#11365
.
#11431
(
alesapin
).
Fix pointInPolygon with nan as point. Fixes
#11375
.
#11421
(
Alexey Ilyukhov
).
Fix crash in JOIN over LowCarinality(T) and Nullable(T).
#11380
.
#11414
(
Artem Zuikov
).
Fix error code for wrong
USING
key.
#11373
.
#11404
(
Artem Zuikov
).
Fixed geohashesInBox with arguments outside of latitude/longitude range.
#11403
(
Vasily Nemkov
).
Better errors for
joinGet()
functions.
#11389
(
Artem Zuikov
).
Fix possible
Pipeline stuck
error for queries with external sort and limit. Fixes
#11359
.
#11366
(
Nikolai Kochetov
).
Remove redundant lock during parts send in ReplicatedMergeTree.
#11354
(
alesapin
).
Fix support for
\G
(vertical output) in clickhouse-client in multiline mode. This closes
#9933
.
#11350
(
alexey-milovidov
).
Fix crash in direct selects from StorageJoin (without JOIN) and wrong nullability.
#11340
(
Artem Zuikov
).
Fix crash in
quantilesExactWeightedArray
.
#11337
(
Nikolai Kochetov
).
Now merges stopped before change metadata in
ALTER
queries.
#11335
(
alesapin
). | {"source_file": "2020.md"} | [
0.007647126913070679,
0.06465902179479599,
0.006912055891007185,
0.00984653364866972,
-0.007768652401864529,
-0.06371369957923889,
-0.04081723839044571,
0.001157545717433095,
-0.02967177703976631,
0.050579242408275604,
-0.03834462910890579,
0.011119784787297249,
0.012030672281980515,
-0.02... |
af1031d9-37bc-4a61-a067-a2f10f7ba180 | Fix crash in
quantilesExactWeightedArray
.
#11337
(
Nikolai Kochetov
).
Now merges stopped before change metadata in
ALTER
queries.
#11335
(
alesapin
).
Make writing to
MATERIALIZED VIEW
with setting
parallel_view_processing = 1
parallel again. Fixes
#10241
.
#11330
(
Nikolai Kochetov
).
Fix visitParamExtractRaw when extracted JSON has strings with unbalanced { or [.
#11318
(
Ewout
).
Fix very rare race condition in ThreadPool.
#11314
(
alexey-milovidov
).
Fix potential uninitialized memory in conversion. Example:
SELECT toIntervalSecond(now64())
.
#11311
(
alexey-milovidov
).
Fix the issue when index analysis cannot work if a table has Array column in primary key and if a query is filtering by this column with
empty
or
notEmpty
functions. This fixes
#11286
.
#11303
(
alexey-milovidov
).
Fix bug when query speed estimation can be incorrect and the limit of
min_execution_speed
may not work or work incorrectly if the query is throttled by
max_network_bandwidth
,
max_execution_speed
or
priority
settings. Change the default value of
timeout_before_checking_execution_speed
to non-zero, because otherwise the settings
min_execution_speed
and
max_execution_speed
have no effect. This fixes
#11297
. This fixes
#5732
. This fixes
#6228
. Usability improvement: avoid concatenation of exception message with progress bar in
clickhouse-client
.
#11296
(
alexey-milovidov
).
Fix crash while reading malformed data in Protobuf format. This fixes
#5957
, fixes
#11203
.
#11258
(
Vitaly Baranov
).
Fixed a bug when cache-dictionary could return default value instead of normal (when there are only expired keys). This affects only string fields.
#11233
(
Nikita Mikhaylov
).
Fix error
Block structure mismatch in QueryPipeline
while reading from
VIEW
with constants in inner query. Fixes
#11181
.
#11205
(
Nikolai Kochetov
).
Fix possible exception
Invalid status for associated output
.
#11200
(
Nikolai Kochetov
).
Fix possible error
Cannot capture column
for higher-order functions with
Array(Array(LowCardinality))
captured argument.
#11185
(
Nikolai Kochetov
).
Fixed S3 globbing which could fail in case of more than 1000 keys and some backends.
#11179
(
Vladimir Chebotarev
).
If data skipping index is dependent on columns that are going to be modified during background merge (for SummingMergeTree, AggregatingMergeTree as well as for TTL GROUP BY), it was calculated incorrectly. This issue is fixed by moving index calculation after merge so the index is calculated on merged data.
#11162
(
Azat Khuzhin
).
Fix excessive reserving of threads for simple queries (optimization for reducing the number of threads, which was partly broken after changes in pipeline).
#11114
(
Azat Khuzhin
). | {"source_file": "2020.md"} | [
-0.016370372846722603,
-0.026238350197672844,
-0.02646772190928459,
0.017600689083337784,
-0.07437723875045776,
-0.031595028936862946,
-0.034157492220401764,
0.004367349669337273,
-0.026519309729337692,
-0.005537462420761585,
0.01806606352329254,
-0.028917213901877403,
-0.05641692876815796,
... |
cbad85c7-4d85-4d59-8eac-935647c7abfd | Fix excessive reserving of threads for simple queries (optimization for reducing the number of threads, which was partly broken after changes in pipeline).
#11114
(
Azat Khuzhin
).
Fix predicates optimization for distributed queries (
enable_optimize_predicate_expression=1
) for queries with
HAVING
section (i.e. when filtering on the server initiator is required), by preserving the order of expressions (and this is enough to fix), and also force aggregator use column names over indexes. Fixes:
#10613
,
#11413
.
#10621
(
Azat Khuzhin
).
Introduce commit retry logic to decrease the possibility of getting duplicates from Kafka in rare cases when offset commit was failed.
#9884
(
filimonov
).
Performance Improvement {#performance-improvement-14}
Get dictionary and check access rights only once per each call of any function reading external dictionaries.
#10928
(
Vitaly Baranov
).
Build/Testing/Packaging Improvement {#buildtestingpackaging-improvement-17}
Fix several flaky integration tests.
#11355
(
alesapin
).
ClickHouse release v20.3.10.75-lts 2020-05-23 {#clickhouse-release-v2031075-lts-2020-05-23}
Bug Fix {#bug-fix-41}
Removed logging from mutation finalization task if nothing was finalized.
#11109
(
alesapin
).
Fixed
parseDateTime64BestEffort
argument resolution bugs.
#11038
(
Vasily Nemkov
).
Fixed incorrect raw data size in method
getRawData()
.
#10964
(
Igr
).
Fixed incompatibility of two-level aggregation between versions 20.1 and earlier. This incompatibility happens when different versions of ClickHouse are used on initiator node and remote nodes and the size of
GROUP BY
result is large and aggregation is performed by a single
String
field. It leads to several unmerged rows for a single key in result.
#10952
(
alexey-milovidov
).
Fixed backward compatibility with tuples in
Distributed
tables.
#10889
(
Anton Popov
).
Fixed
SIGSEGV
in
StringHashTable
if such a key does not exist.
#10870
(
Azat Khuzhin
).
Fixed bug in
ReplicatedMergeTree
which might cause some
ALTER
on
OPTIMIZE
query to hang waiting for some replica after it become inactive.
#10849
(
tavplubix
).
Fixed columns order after
Block::sortColumns()
.
#10826
(
Azat Khuzhin
).
Fixed the issue with
ODBC
bridge when no quoting of identifiers is requested. Fixes
#7984
.
#10821
(
alexey-milovidov
).
Fixed
UBSan
and
MSan
report in
DateLUT
.
#10798
(
alexey-milovidov
).
Fixed incorrect type conversion in key conditions. Fixes
#6287
.
#10791
(
Andrew Onyshchuk
)
Fixed
parallel_view_processing
behavior. Now all insertions into
MATERIALIZED VIEW
without exception should be finished if exception happened. Fixes
#10241
.
#10757
(
Nikolai Kochetov
).
Fixed combinator -
OrNull
and
-OrDefault
when combined with
-State
.
#10741
(
hcz
).
Fixed crash in
generateRandom
with nested types. Fixes
#10583
.
#10734
(
Nikolai Kochetov
). | {"source_file": "2020.md"} | [
-0.05778766795992851,
-0.009894012473523617,
-0.04860673472285271,
0.007015628274530172,
-0.058322545140981674,
-0.07477971911430359,
-0.057493142783641815,
-0.011640767566859722,
0.012778627686202526,
0.0666613057255745,
-0.01646854728460312,
-0.06025037169456482,
-0.011938420124351978,
-... |
452e6bce-da31-4b97-b6f0-9f1b6299b060 | Fixed combinator -
OrNull
and
-OrDefault
when combined with
-State
.
#10741
(
hcz
).
Fixed crash in
generateRandom
with nested types. Fixes
#10583
.
#10734
(
Nikolai Kochetov
).
Fixed data corruption for
LowCardinality(FixedString)
key column in
SummingMergeTree
which could have happened after merge. Fixes
#10489
.
#10721
(
Nikolai Kochetov
).
Fixed possible buffer overflow in function
h3EdgeAngle
.
#10711
(
alexey-milovidov
).
Fixed disappearing totals. Totals could have being filtered if query had had join or subquery with external where condition. Fixes
#10674
.
#10698
(
Nikolai Kochetov
).
Fixed multiple usages of
IN
operator with the identical set in one query.
#10686
(
Anton Popov
).
Fixed bug, which causes http requests stuck on client close when
readonly=2
and
cancel_http_readonly_queries_on_client_close=1
. Fixes
#7939
,
#7019
,
#7736
,
#7091
.
#10684
(
tavplubix
).
Fixed order of parameters in
AggregateTransform
constructor.
#10667
(
palasonic1
).
Fixed the lack of parallel execution of remote queries with
distributed_aggregation_memory_efficient
enabled. Fixes
#10655
.
#10664
(
Nikolai Kochetov
).
Fixed possible incorrect number of rows for queries with
LIMIT
. Fixes
#10566
,
#10709
.
#10660
(
Nikolai Kochetov
).
Fixed a bug which locks concurrent alters when table has a lot of parts.
#10659
(
alesapin
).
Fixed a bug when on
SYSTEM DROP DNS CACHE
query also drop caches, which are used to check if user is allowed to connect from some IP addresses.
#10608
(
tavplubix
).
Fixed incorrect scalar results inside inner query of
MATERIALIZED VIEW
in case if this query contained dependent table.
#10603
(
Nikolai Kochetov
).
Fixed
SELECT
of column
ALIAS
which default expression type different from column type.
#10563
(
Azat Khuzhin
).
Implemented comparison between DateTime64 and String values.
#10560
(
Vasily Nemkov
).
Fixed index corruption, which may occur in some cases after merge compact parts into another compact part.
#10531
(
Anton Popov
).
Fixed the situation, when mutation finished all parts, but hung up in
is_done=0
.
#10526
(
alesapin
).
Fixed overflow at beginning of unix epoch for timezones with fractional offset from
UTC
. This fixes
#9335
.
#10513
(
alexey-milovidov
).
Fixed improper shutdown of
Distributed
storage.
#10491
(
Azat Khuzhin
).
Fixed numeric overflow in
simpleLinearRegression
over large integers.
#10474
(
hcz
).
Build/Testing/Packaging Improvement {#buildtestingpackaging-improvement-18}
Fix UBSan report in LZ4 library.
#10631
(
alexey-milovidov
).
Fix clang-10 build.
#10238
.
#10370
(
Amos Bird
).
Added failing tests about
max_rows_to_sort
setting.
#10268
(
alexey-milovidov
).
Added some improvements in printing diagnostic info in input formats. Fixes
#10204
.
#10418
(
tavplubix
).
Added CA certificates to clickhouse-server docker image.
#10476
(
filimonov
). | {"source_file": "2020.md"} | [
-0.04353756830096245,
0.02745327539741993,
0.04076862335205078,
0.03610819950699806,
-0.02128838375210762,
-0.03142756223678589,
0.0035075731575489044,
0.0018034940585494041,
-0.03400503098964691,
0.043490469455718994,
-0.035747841000556946,
0.016604524105787277,
0.022391309961676598,
-0.1... |
ed9ae8ca-d4e3-4bde-bcc3-09f19eb58442 | Added some improvements in printing diagnostic info in input formats. Fixes
#10204
.
#10418
(
tavplubix
).
Added CA certificates to clickhouse-server docker image.
#10476
(
filimonov
).
Bug fix {#bug-fix-42}
Fix error
the BloomFilter false positive must be a double number between 0 and 1
#10551
.
#10569
(
Winter Zhang
).
ClickHouse release v20.3.8.53, 2020-04-23 {#clickhouse-release-v203853-2020-04-23}
Bug Fix {#bug-fix-43}
Fixed wrong behaviour of datetime functions for timezones that has altered between positive and negative offsets from UTC (e.g. Pacific/Kiritimati). This fixes
#7202
#10369
(
alexey-milovidov
)
Fix possible segfault with
distributed_group_by_no_merge
enabled (introduced in 20.3.7.46 by
#10131
).
#10399
(
Nikolai Kochetov
)
Fix wrong flattening of
Array(Tuple(...))
data types. This fixes
#10259
#10390
(
alexey-milovidov
)
Drop disks reservation in Aggregator. This fixes bug in disk space reservation, which may cause big external aggregation to fail even if it could be completed successfully
#10375
(
Azat Khuzhin
)
Fixed
DROP
vs
OPTIMIZE
race in
ReplicatedMergeTree
.
DROP
could left some garbage in replica path in ZooKeeper if there was concurrent
OPTIMIZE
query.
#10312
(
tavplubix
)
Fix bug when server cannot attach table after column default was altered.
#10441
(
alesapin
)
Do not remove metadata directory when attach database fails before loading tables.
#10442
(
Winter Zhang
)
Fixed several bugs when some data was inserted with quorum, then deleted somehow (DROP PARTITION, TTL) and this leaded to the stuck of INSERTs or false-positive exceptions in SELECTs. This fixes
#9946
#10188
(
Nikita Mikhaylov
)
Fix possible
Pipeline stuck
error in
ConcatProcessor
which could have happened in remote query.
#10381
(
Nikolai Kochetov
)
Fixed wrong behavior in HashTable that caused compilation error when trying to read HashMap from buffer.
#10386
(
palasonic1
)
Allow to use
count(*)
with multiple JOINs. Fixes
#9853
#10291
(
Artem Zuikov
)
Prefer
fallback_to_stale_replicas
over
skip_unavailable_shards
, otherwise when both settings specified and there are no up-to-date replicas the query will fail (patch from @alex-zaitsev). Fixes:
#2564
.
#10422
(
Azat Khuzhin
)
Fix the issue when a query with ARRAY JOIN, ORDER BY and LIMIT may return incomplete result. This fixes
#10226
. Author:
Vadim Plakhtinskiy
.
#10427
(
alexey-milovidov
)
Check the number and type of arguments when creating BloomFilter index
#9623
#10431
(
Winter Zhang
)
Performance Improvement {#performance-improvement-15}
Improved performance of queries with explicitly defined sets at right side of
IN
operator and tuples in the left side. This fixes performance regression in version 20.3.
#9740
,
#10385
(
Anton Popov
)
ClickHouse release v20.3.7.46, 2020-04-17 {#clickhouse-release-v203746-2020-04-17}
Bug Fix {#bug-fix-44} | {"source_file": "2020.md"} | [
-0.04370268061757088,
0.058149319142103195,
0.031341247260570526,
-0.005816033575683832,
0.01776285283267498,
-0.11229456216096878,
-0.05356358736753464,
-0.03259386867284775,
-0.08000754565000534,
-0.030769389122724533,
0.023608341813087463,
-0.034231413155794144,
0.018612327054142952,
0.... |
6d60e0dd-14af-4f00-8a3b-8492aa5abcd2 | ClickHouse release v20.3.7.46, 2020-04-17 {#clickhouse-release-v203746-2020-04-17}
Bug Fix {#bug-fix-44}
Fix
Logical error: CROSS JOIN has expressions
error for queries with comma and names joins mix.
#10311
(
Artem Zuikov
).
Fix queries with
max_bytes_before_external_group_by
.
#10302
(
Artem Zuikov
).
Fix move-to-prewhere optimization in presense of arrayJoin functions (in certain cases). This fixes
#10092
.
#10195
(
alexey-milovidov
).
Add the ability to relax the restriction on non-deterministic functions usage in mutations with
allow_nondeterministic_mutations
setting.
#10186
(
filimonov
).
ClickHouse release v20.3.6.40, 2020-04-16 {#clickhouse-release-v203640-2020-04-16}
New Feature {#new-feature-10}
Added function
isConstant
. This function checks whether its argument is constant expression and returns 1 or 0. It is intended for development, debugging and demonstration purposes.
#10198
(
alexey-milovidov
).
Bug Fix {#bug-fix-45}
Fix error
Pipeline stuck
with
max_rows_to_group_by
and
group_by_overflow_mode = 'break'
.
#10279
(
Nikolai Kochetov
).
Fix rare possible exception
Cannot drain connections: cancel first
.
#10239
(
Nikolai Kochetov
).
Fixed bug where ClickHouse would throw "Unknown function lambda." error message when user tries to run ALTER UPDATE/DELETE on tables with ENGINE = Replicated*. Check for nondeterministic functions now handles lambda expressions correctly.
#10237
(
Alexander Kazakov
).
Fixed "generateRandom" function for Date type. This fixes
#9973
. Fix an edge case when dates with year 2106 are inserted to MergeTree tables with old-style partitioning but partitions are named with year 1970.
#10218
(
alexey-milovidov
).
Convert types if the table definition of a View does not correspond to the SELECT query. This fixes
#10180
and
#10022
.
#10217
(
alexey-milovidov
).
Fix
parseDateTimeBestEffort
for strings in RFC-2822 when day of week is Tuesday or Thursday. This fixes
#10082
.
#10214
(
alexey-milovidov
).
Fix column names of constants inside JOIN that may clash with names of constants outside of JOIN.
#10207
(
alexey-milovidov
).
Fix possible inifinite query execution when the query actually should stop on LIMIT, while reading from infinite source like
system.numbers
or
system.zeros
.
#10206
(
Nikolai Kochetov
).
Fix using the current database for access checking when the database isn't specified.
#10192
(
Vitaly Baranov
).
Convert blocks if structure does not match on INSERT into Distributed().
#10135
(
Azat Khuzhin
).
Fix possible incorrect result for extremes in processors pipeline.
#10131
(
Nikolai Kochetov
).
Fix some kinds of alters with compact parts.
#10130
(
Anton Popov
).
Fix incorrect
index_granularity_bytes
check while creating new replica. Fixes
#10098
.
#10121
(
alesapin
). | {"source_file": "2020.md"} | [
-0.08587557077407837,
-0.022507349029183388,
0.013491255231201649,
-0.01437379140406847,
0.004504697863012552,
-0.030673807486891747,
0.03820590302348137,
-0.04415472224354744,
-0.05751973018050194,
0.004438609816133976,
0.011700699105858803,
-0.07914185523986816,
-0.009580098092556,
0.010... |
ff7d5d26-5f0b-407d-a271-5dd2eabf84e9 | Fix some kinds of alters with compact parts.
#10130
(
Anton Popov
).
Fix incorrect
index_granularity_bytes
check while creating new replica. Fixes
#10098
.
#10121
(
alesapin
).
Fix SIGSEGV on INSERT into Distributed table when its structure differs from the underlying tables.
#10105
(
Azat Khuzhin
).
Fix possible rows loss for queries with
JOIN
and
UNION ALL
. Fixes
#9826
,
#10113
.
#10099
(
Nikolai Kochetov
).
Fixed replicated tables startup when updating from an old ClickHouse version where
/table/replicas/replica_name/metadata
node does not exist. Fixes
#10037
.
#10095
(
alesapin
).
Add some arguments check and support identifier arguments for MySQL Database Engine.
#10077
(
Winter Zhang
).
Fix bug in clickhouse dictionary source from localhost clickhouse server. The bug may lead to memory corruption if types in dictionary and source are not compatible.
#10071
(
alesapin
).
Fix bug in
CHECK TABLE
query when table contain skip indices.
#10068
(
alesapin
).
Fix error
Cannot clone block with columns because block has 0 columns ... While executing GroupingAggregatedTransform
. It happened when setting
distributed_aggregation_memory_efficient
was enabled, and distributed query read aggregating data with different level from different shards (mixed single and two level aggregation).
#10063
(
Nikolai Kochetov
).
Fix a segmentation fault that could occur in GROUP BY over string keys containing trailing zero bytes (
#8636
,
#8925
).
#10025
(
Alexander Kuzmenkov
).
Fix the number of threads used for remote query execution (performance regression, since 20.3). This happened when query from
Distributed
table was executed simultaneously on local and remote shards. Fixes
#9965
.
#9971
(
Nikolai Kochetov
).
Fix bug in which the necessary tables weren't retrieved at one of the processing stages of queries to some databases. Fixes
#9699
.
#9949
(
achulkov2
).
Fix 'Not found column in block' error when
JOIN
appears with
TOTALS
. Fixes
#9839
.
#9939
(
Artem Zuikov
).
Fix a bug with
ON CLUSTER
DDL queries freezing on server startup.
#9927
(
Gagan Arneja
).
Fix parsing multiple hosts set in the CREATE USER command, e.g.
CREATE USER user6 HOST NAME REGEXP 'lo.?*host', NAME REGEXP 'lo*host'
.
#9924
(
Vitaly Baranov
).
Fix
TRUNCATE
for Join table engine (
#9917
).
#9920
(
Amos Bird
).
Fix "scalar does not exist" error in ALTERs (
#9878
).
#9904
(
Amos Bird
).
Fix race condition between drop and optimize in
ReplicatedMergeTree
.
#9901
(
alesapin
).
Fix error with qualified names in
distributed_product_mode='local'
. Fixes
#4756
.
#9891
(
Artem Zuikov
).
Fix calculating grants for introspection functions from the setting 'allow_introspection_functions'.
#9840
(
Vitaly Baranov
).
Build/Testing/Packaging Improvement {#buildtestingpackaging-improvement-19}
Fix integration test
test_settings_constraints
.
#9962
(
Vitaly Baranov
). | {"source_file": "2020.md"} | [
-0.026487374678254128,
-0.045649852603673935,
0.016875235363841057,
-0.00892186351120472,
-0.026464547961950302,
-0.12644441425800323,
-0.052506912499666214,
-0.026738353073596954,
-0.052410971373319626,
0.0505632720887661,
-0.007683314848691225,
-0.008688162080943584,
0.07809171080589294,
... |
f5c1a5c7-11e4-4786-b22d-89fb9c2dc1d4 | Build/Testing/Packaging Improvement {#buildtestingpackaging-improvement-19}
Fix integration test
test_settings_constraints
.
#9962
(
Vitaly Baranov
).
Removed dependency on
clock_getres
.
#9833
(
alexey-milovidov
).
ClickHouse release v20.3.5.21, 2020-03-27 {#clickhouse-release-v203521-2020-03-27}
Bug Fix {#bug-fix-46}
Fix 'Different expressions with the same alias' error when query has PREWHERE and WHERE on distributed table and
SET distributed_product_mode = 'local'
.
#9871
(
Artem Zuikov
).
Fix mutations excessive memory consumption for tables with a composite primary key. This fixes
#9850
.
#9860
(
alesapin
).
For INSERT queries shard now clamps the settings got from the initiator to the shard's constaints instead of throwing an exception. This fix allows to send INSERT queries to a shard with another constraints. This change improves fix
#9447
.
#9852
(
Vitaly Baranov
).
Fix 'COMMA to CROSS JOIN rewriter is not enabled or cannot rewrite query' error in case of subqueries with COMMA JOIN out of tables lists (i.e. in WHERE). Fixes
#9782
.
#9830
(
Artem Zuikov
).
Fix possible exception
Got 0 in totals chunk, expected 1
on client. It happened for queries with
JOIN
in case if right joined table had zero rows. Example:
select * from system.one t1 join system.one t2 on t1.dummy = t2.dummy limit 0 FORMAT TabSeparated;
. Fixes
#9777
.
#9823
(
Nikolai Kochetov
).
Fix SIGSEGV with optimize_skip_unused_shards when type cannot be converted.
#9804
(
Azat Khuzhin
).
Fix broken
ALTER TABLE DELETE COLUMN
query for compact parts.
#9779
(
alesapin
).
Fix max_distributed_connections (w/ and w/o Processors).
#9673
(
Azat Khuzhin
).
Fixed a few cases when timezone of the function argument wasn't used properly.
#9574
(
Vasily Nemkov
).
Improvement {#improvement-19}
Remove order by stage from mutations because we read from a single ordered part in a single thread. Also add check that the order of rows in mutation is ordered in sorting key order and this order is not violated.
#9886
(
alesapin
).
ClickHouse release v20.3.4.10, 2020-03-20 {#clickhouse-release-v203410-2020-03-20}
Bug Fix {#bug-fix-47}
This release also contains all bug fixes from 20.1.8.41
Fix missing
rows_before_limit_at_least
for queries over http (with processors pipeline). This fixes
#9730
.
#9757
(
Nikolai Kochetov
)
ClickHouse release v20.3.3.6, 2020-03-17 {#clickhouse-release-v20336-2020-03-17}
Bug Fix {#bug-fix-48}
This release also contains all bug fixes from 20.1.7.38
Fix bug in a replication that does not allow replication to work if the user has executed mutations on the previous version. This fixes
#9645
.
#9652
(
alesapin
). It makes version 20.3 backward compatible again. | {"source_file": "2020.md"} | [
-0.010949329473078251,
-0.015073747374117374,
0.0005892998306080699,
-0.009571384638547897,
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0.01675533689558506,
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0.019198013469576836,
0.07972944527864456,
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0.07250387966632843,
-0... |
686f3103-8c5e-4d9a-8266-b8a51dc620e1 | Add setting
use_compact_format_in_distributed_parts_names
which allows to write files for
INSERT
queries into
Distributed
table with more compact format. This fixes
#9647
.
#9653
(
alesapin
). It makes version 20.3 backward compatible again.
ClickHouse release v20.3.2.1, 2020-03-12 {#clickhouse-release-v20321-2020-03-12}
Backward Incompatible Change {#backward-incompatible-change-9}
Fixed the issue
file name too long
when sending data for
Distributed
tables for a large number of replicas. Fixed the issue that replica credentials were exposed in the server log. The format of directory name on disk was changed to
[shard{shard_index}[_replica{replica_index}]]
.
#8911
(
Mikhail Korotov
) After you upgrade to the new version, you will not be able to downgrade without manual intervention, because old server version does not recognize the new directory format. If you want to downgrade, you have to manually rename the corresponding directories to the old format. This change is relevant only if you have used asynchronous
INSERT
s to
Distributed
tables. In the version 20.3.3 we will introduce a setting that will allow you to enable the new format gradually.
Changed the format of replication log entries for mutation commands. You have to wait for old mutations to process before installing the new version.
Implement simple memory profiler that dumps stacktraces to
system.trace_log
every N bytes over soft allocation limit
#8765
(
Ivan
)
#9472
(
alexey-milovidov
) The column of
system.trace_log
was renamed from
timer_type
to
trace_type
. This will require changes in third-party performance analysis and flamegraph processing tools.
Use OS thread id everywhere instead of internal thread number. This fixes
#7477
Old
clickhouse-client
cannot receive logs that are send from the server when the setting
send_logs_level
is enabled, because the names and types of the structured log messages were changed. On the other hand, different server versions can send logs with different types to each other. When you don't use the
send_logs_level
setting, you should not care.
#8954
(
alexey-milovidov
)
Remove
indexHint
function
#9542
(
alexey-milovidov
)
Remove
findClusterIndex
,
findClusterValue
functions. This fixes
#8641
. If you were using these functions, send an email to
clickhouse-feedback@yandex-team.com
#9543
(
alexey-milovidov
)
Now it's not allowed to create columns or add columns with
SELECT
subquery as default expression.
#9481
(
alesapin
)
Require aliases for subqueries in JOIN.
#9274
(
Artem Zuikov
)
Improved
ALTER MODIFY/ADD
queries logic. Now you cannot
ADD
column without type,
MODIFY
default expression does not change type of column and
MODIFY
type does not loose default expression value. Fixes
#8669
.
#9227
(
alesapin
) | {"source_file": "2020.md"} | [
0.010210804641246796,
-0.04703230410814285,
-0.007672041188925505,
-0.04276864975690842,
-0.038165949285030365,
-0.09038036316633224,
-0.09195558726787567,
-0.02959361858665943,
-0.007199079263955355,
0.0904635563492775,
0.05120540037751198,
0.06578708440065384,
0.06692080199718475,
0.0196... |
b58e8a25-13ad-4093-996d-60748624e93e | Require server to be restarted to apply the changes in logging configuration. This is a temporary workaround to avoid the bug where the server logs to a deleted log file (see
#8696
).
#8707
(
Alexander Kuzmenkov
)
The setting
experimental_use_processors
is enabled by default. This setting enables usage of the new query pipeline. This is internal refactoring and we expect no visible changes. If you will see any issues, set it to back zero.
#8768
(
alexey-milovidov
)
New Feature {#new-feature-11}
Add
Avro
and
AvroConfluent
input/output formats
#8571
(
Andrew Onyshchuk
)
#8957
(
Andrew Onyshchuk
)
#8717
(
alexey-milovidov
)
Multi-threaded and non-blocking updates of expired keys in
cache
dictionaries (with optional permission to read old ones).
#8303
(
Nikita Mikhaylov
)
Add query
ALTER ... MATERIALIZE TTL
. It runs mutation that forces to remove expired data by TTL and recalculates meta-information about TTL in all parts.
#8775
(
Anton Popov
)
Switch from HashJoin to MergeJoin (on disk) if needed
#9082
(
Artem Zuikov
)
Added
MOVE PARTITION
command for
ALTER TABLE
#4729
#6168
(
Guillaume Tassery
)
Reloading storage configuration from configuration file on the fly.
#8594
(
Vladimir Chebotarev
)
Allowed to change
storage_policy
to not less rich one.
#8107
(
Vladimir Chebotarev
)
Added support for globs/wildcards for S3 storage and table function.
#8851
(
Vladimir Chebotarev
)
Implement
bitAnd
,
bitOr
,
bitXor
,
bitNot
for
FixedString(N)
datatype.
#9091
(
Guillaume Tassery
)
Added function
bitCount
. This fixes
#8702
.
#8708
(
alexey-milovidov
)
#8749
(
ikopylov
)
Add
generateRandom
table function to generate random rows with given schema. Allows to populate arbitrary test table with data.
#8994
(
Ilya Yatsishin
)
JSONEachRowFormat
: support special case when objects enclosed in top-level array.
#8860
(
Kruglov Pavel
)
Now it's possible to create a column with
DEFAULT
expression which depends on a column with default
ALIAS
expression.
#9489
(
alesapin
)
Allow to specify
--limit
more than the source data size in
clickhouse-obfuscator
. The data will repeat itself with different random seed.
#9155
(
alexey-milovidov
)
Added
groupArraySample
function (similar to
groupArray
) with reservior sampling algorithm.
#8286
(
Amos Bird
)
Now you can monitor the size of update queue in
cache
/
complex_key_cache
dictionaries via system metrics.
#9413
(
Nikita Mikhaylov
)
Allow to use CRLF as a line separator in CSV output format with setting
output_format_csv_crlf_end_of_line
is set to 1
#8934
#8935
#8963
(
Mikhail Korotov
)
Implement more functions of the
H3
API:
h3GetBaseCell
,
h3HexAreaM2
,
h3IndexesAreNeighbors
,
h3ToChildren
,
h3ToString
and
stringToH3
#8938
(
Nico Mandery
) | {"source_file": "2020.md"} | [
-0.0390717051923275,
-0.01337643712759018,
-0.01840023882687092,
0.06386300176382065,
-0.04608466103672981,
-0.07863036543130875,
0.026484539732336998,
-0.041711561381816864,
0.035109180957078934,
0.04203886166214943,
0.0229672659188509,
0.06553013622760773,
-0.034222520887851715,
-0.00012... |
beb17a96-868a-4d2b-8096-962a5fde11a7 | Implement more functions of the
H3
API:
h3GetBaseCell
,
h3HexAreaM2
,
h3IndexesAreNeighbors
,
h3ToChildren
,
h3ToString
and
stringToH3
#8938
(
Nico Mandery
)
New setting introduced:
max_parser_depth
to control maximum stack size and allow large complex queries. This fixes
#6681
and
#7668
.
#8647
(
Maxim Smirnov
)
Add a setting
force_optimize_skip_unused_shards
setting to throw if skipping of unused shards is not possible
#8805
(
Azat Khuzhin
)
Allow to configure multiple disks/volumes for storing data for send in
Distributed
engine
#8756
(
Azat Khuzhin
)
Support storage policy (
<tmp_policy>
) for storing temporary data.
#8750
(
Azat Khuzhin
)
Added
X-ClickHouse-Exception-Code
HTTP header that is set if exception was thrown before sending data. This implements
#4971
.
#8786
(
Mikhail Korotov
)
Added function
ifNotFinite
. It is just a syntactic sugar:
ifNotFinite(x, y) = isFinite(x) ? x : y
.
#8710
(
alexey-milovidov
)
Added
last_successful_update_time
column in
system.dictionaries
table
#9394
(
Nikita Mikhaylov
)
Add
blockSerializedSize
function (size on disk without compression)
#8952
(
Azat Khuzhin
)
Add function
moduloOrZero
#9358
(
hcz
)
Added system tables
system.zeros
and
system.zeros_mt
as well as tale functions
zeros()
and
zeros_mt()
. Tables (and table functions) contain single column with name
zero
and type
UInt8
. This column contains zeros. It is needed for test purposes as the fastest method to generate many rows. This fixes
#6604
#9593
(
Nikolai Kochetov
)
Experimental Feature {#experimental-feature-7}
Add new compact format of parts in
MergeTree
-family tables in which all columns are stored in one file. It helps to increase performance of small and frequent inserts. The old format (one file per column) is now called wide. Data storing format is controlled by settings
min_bytes_for_wide_part
and
min_rows_for_wide_part
.
#8290
(
Anton Popov
)
Support for S3 storage for
Log
,
TinyLog
and
StripeLog
tables.
#8862
(
Pavel Kovalenko
)
Bug Fix {#bug-fix-49}
Fixed inconsistent whitespaces in log messages.
#9322
(
alexey-milovidov
)
Fix bug in which arrays of unnamed tuples were flattened as Nested structures on table creation.
#8866
(
achulkov2
)
Fixed the issue when "Too many open files" error may happen if there are too many files matching glob pattern in
File
table or
file
table function. Now files are opened lazily. This fixes
#8857
#8861
(
alexey-milovidov
)
DROP TEMPORARY TABLE now drops only temporary table.
#8907
(
Vitaly Baranov
)
Remove outdated partition when we shutdown the server or DETACH/ATTACH a table.
#8602
(
Guillaume Tassery
) | {"source_file": "2020.md"} | [
-0.012370901182293892,
0.004121644422411919,
-0.05386147275567055,
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-0.07035806775093079,
0.009147032164037228,
0.021043982356786728,
0.006170549895614386,
0.020216964185237885,
-0.019532985985279083,
0.04045593738555908,
-0... |
50181107-2f5b-457a-a3de-1ab422da3ed9 | DROP TEMPORARY TABLE now drops only temporary table.
#8907
(
Vitaly Baranov
)
Remove outdated partition when we shutdown the server or DETACH/ATTACH a table.
#8602
(
Guillaume Tassery
)
For how the default disk calculates the free space from
data
subdirectory. Fixed the issue when the amount of free space is not calculated correctly if the
data
directory is mounted to a separate device (rare case). This fixes
#7441
#9257
(
Mikhail Korotov
)
Allow comma (cross) join with IN () inside.
#9251
(
Artem Zuikov
)
Allow to rewrite CROSS to INNER JOIN if there's [NOT] LIKE operator in WHERE section.
#9229
(
Artem Zuikov
)
Fix possible incorrect result after
GROUP BY
with enabled setting
distributed_aggregation_memory_efficient
. Fixes
#9134
.
#9289
(
Nikolai Kochetov
)
Found keys were counted as missed in metrics of cache dictionaries.
#9411
(
Nikita Mikhaylov
)
Fix replication protocol incompatibility introduced in
#8598
.
#9412
(
alesapin
)
Fixed race condition on
queue_task_handle
at the startup of
ReplicatedMergeTree
tables.
#9552
(
alexey-milovidov
)
The token
NOT
did not work in
SHOW TABLES NOT LIKE
query
#8727
#8940
(
alexey-milovidov
)
Added range check to function
h3EdgeLengthM
. Without this check, buffer overflow is possible.
#8945
(
alexey-milovidov
)
Fixed up a bug in batched calculations of ternary logical OPs on multiple arguments (more than 10).
#8718
(
Alexander Kazakov
)
Fix error of PREWHERE optimization, which could lead to segfaults or
Inconsistent number of columns got from MergeTreeRangeReader
exception.
#9024
(
Anton Popov
)
Fix unexpected
Timeout exceeded while reading from socket
exception, which randomly happens on secure connection before timeout actually exceeded and when query profiler is enabled. Also add
connect_timeout_with_failover_secure_ms
settings (default 100ms), which is similar to
connect_timeout_with_failover_ms
, but is used for secure connections (because SSL handshake is slower, than ordinary TCP connection)
#9026
(
tavplubix
)
Fix bug with mutations finalization, when mutation may hang in state with
parts_to_do=0
and
is_done=0
.
#9022
(
alesapin
)
Use new ANY JOIN logic with
partial_merge_join
setting. It's possible to make
ANY|ALL|SEMI LEFT
and
ALL INNER
joins with
partial_merge_join=1
now.
#8932
(
Artem Zuikov
)
Shard now clamps the settings got from the initiator to the shard's constaints instead of throwing an exception. This fix allows to send queries to a shard with another constraints.
#9447
(
Vitaly Baranov
)
Fixed memory management problem in
MergeTreeReadPool
.
#8791
(
Vladimir Chebotarev
)
Fix
toDecimal*OrNull()
functions family when called with string
e
. Fixes
#8312
#8764
(
Artem Zuikov
)
Make sure that
FORMAT Null
sends no data to the client.
#8767
(
Alexander Kuzmenkov
) | {"source_file": "2020.md"} | [
-0.04231657460331917,
0.015550244599580765,
0.03945529833436012,
0.06244784966111183,
0.05635426193475723,
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0.02871800772845745,
0.04191265255212784,
0.04630514234304428,
0.08661855757236481,
0.11016766726970673,
0.009110544808208942,
0.0577080063521862,
-0.01175308972... |
c8d2d922-ff7e-4aa9-a155-6c5fc9d9a0a6 | Make sure that
FORMAT Null
sends no data to the client.
#8767
(
Alexander Kuzmenkov
)
Fix bug that timestamp in
LiveViewBlockInputStream
will not updated.
LIVE VIEW
is an experimental feature.
#8644
(
vxider
)
#8625
(
vxider
)
Fixed
ALTER MODIFY TTL
wrong behavior which did not allow to delete old TTL expressions.
#8422
(
Vladimir Chebotarev
)
Fixed UBSan report in MergeTreeIndexSet. This fixes
#9250
#9365
(
alexey-milovidov
)
Fixed the behaviour of
match
and
extract
functions when haystack has zero bytes. The behaviour was wrong when haystack was constant. This fixes
#9160
#9163
(
alexey-milovidov
)
#9345
(
alexey-milovidov
)
Avoid throwing from destructor in Apache Avro 3rd-party library.
#9066
(
Andrew Onyshchuk
)
Don't commit a batch polled from
Kafka
partially as it can lead to holes in data.
#8876
(
filimonov
)
Fix
joinGet
with nullable return types.
#8919
#9014
(
Amos Bird
)
Fix data incompatibility when compressed with
T64
codec.
#9016
(
Artem Zuikov
) Fix data type ids in
T64
compression codec that leads to wrong (de)compression in affected versions.
#9033
(
Artem Zuikov
)
Add setting
enable_early_constant_folding
and disable it in some cases that leads to errors.
#9010
(
Artem Zuikov
)
Fix pushdown predicate optimizer with VIEW and enable the test
#9011
(
Winter Zhang
)
Fix segfault in
Merge
tables, that can happen when reading from
File
storages
#9387
(
tavplubix
)
Added a check for storage policy in
ATTACH PARTITION FROM
,
REPLACE PARTITION
,
MOVE TO TABLE
. Otherwise it could make data of part inaccessible after restart and prevent ClickHouse to start.
#9383
(
Vladimir Chebotarev
)
Fix alters if there is TTL set for table.
#8800
(
Anton Popov
)
Fix race condition that can happen when
SYSTEM RELOAD ALL DICTIONARIES
is executed while some dictionary is being modified/added/removed.
#8801
(
Vitaly Baranov
)
In previous versions
Memory
database engine use empty data path, so tables are created in
path
directory (e.g.
/var/lib/clickhouse/
), not in data directory of database (e.g.
/var/lib/clickhouse/db_name
).
#8753
(
tavplubix
)
Fixed wrong log messages about missing default disk or policy.
#9530
(
Vladimir Chebotarev
)
Fix not(has()) for the bloom_filter index of array types.
#9407
(
achimbab
)
Allow first column(s) in a table with
Log
engine be an alias
#9231
(
Ivan
)
Fix order of ranges while reading from
MergeTree
table in one thread. It could lead to exceptions from
MergeTreeRangeReader
or wrong query results.
#9050
(
Anton Popov
)
Make
reinterpretAsFixedString
to return
FixedString
instead of
String
.
#9052
(
Andrew Onyshchuk
)
Avoid extremely rare cases when the user can get wrong error message (
Success
instead of detailed error description).
#9457
(
alexey-milovidov
)
Do not crash when using
Template
format with empty row template.
#8785
(
Alexander Kuzmenkov
) | {"source_file": "2020.md"} | [
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0.008250974118709564,
0.008280357345938683,
0.00006137727905297652,
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-0.06476469337940216,
... |
0916147a-f064-4155-ac13-c788669bd2b2 | Do not crash when using
Template
format with empty row template.
#8785
(
Alexander Kuzmenkov
)
Metadata files for system tables could be created in wrong place
#8653
(
tavplubix
) Fixes
#8581
.
Fix data race on exception_ptr in cache dictionary
#8303
.
#9379
(
Nikita Mikhaylov
)
Do not throw an exception for query
ATTACH TABLE IF NOT EXISTS
. Previously it was thrown if table already exists, despite the
IF NOT EXISTS
clause.
#8967
(
Anton Popov
)
Fixed missing closing paren in exception message.
#8811
(
alexey-milovidov
)
Avoid message
Possible deadlock avoided
at the startup of clickhouse-client in interactive mode.
#9455
(
alexey-milovidov
)
Fixed the issue when padding at the end of base64 encoded value can be malformed. Update base64 library. This fixes
#9491
, closes
#9492
#9500
(
alexey-milovidov
)
Prevent losing data in
Kafka
in rare cases when exception happens after reading suffix but before commit. Fixes
#9378
#9507
(
filimonov
)
Fixed exception in
DROP TABLE IF EXISTS
#8663
(
Nikita Vasilev
)
Fix crash when a user tries to
ALTER MODIFY SETTING
for old-formated
MergeTree
table engines family.
#9435
(
alesapin
)
Support for UInt64 numbers that don't fit in Int64 in JSON-related functions. Update SIMDJSON to master. This fixes
#9209
#9344
(
alexey-milovidov
)
Fixed execution of inversed predicates when non-strictly monotinic functional index is used.
#9223
(
Alexander Kazakov
)
Don't try to fold
IN
constant in
GROUP BY
#8868
(
Amos Bird
)
Fix bug in
ALTER DELETE
mutations which leads to index corruption. This fixes
#9019
and
#8982
. Additionally fix extremely rare race conditions in
ReplicatedMergeTree
ALTER
queries.
#9048
(
alesapin
)
When the setting
compile_expressions
is enabled, you can get
unexpected column
in
LLVMExecutableFunction
when we use
Nullable
type
#8910
(
Guillaume Tassery
)
Multiple fixes for
Kafka
engine: 1) fix duplicates that were appearing during consumer group rebalance. 2) Fix rare 'holes' appeared when data were polled from several partitions with one poll and committed partially (now we always process / commit the whole polled block of messages). 3) Fix flushes by block size (before that only flushing by timeout was working properly). 4) better subscription procedure (with assignment feedback). 5) Make tests work faster (with default intervals and timeouts). Due to the fact that data was not flushed by block size before (as it should according to documentation), that PR may lead to some performance degradation with default settings (due to more often & tinier flushes which are less optimal). If you encounter the performance issue after that change - please increase
kafka_max_block_size
in the table to the bigger value ( for example
CREATE TABLE ...Engine=Kafka ... SETTINGS ... kafka_max_block_size=524288
). Fixes
#7259
#8917
(
filimonov
) | {"source_file": "2020.md"} | [
-0.00750005105510354,
-0.013541544787585735,
-0.02423918806016445,
-0.036353517323732376,
-0.015549476258456707,
-0.003949228208512068,
-0.04176466539502144,
0.03806794807314873,
0.010704356245696545,
0.07417425513267517,
0.03590640053153038,
0.006550827994942665,
-0.002068677917122841,
-0... |
423a828b-3820-4bf7-90f1-016f32d58a51 | Fix
Parameter out of bound
exception in some queries after PREWHERE optimizations.
#8914
(
Baudouin Giard
)
Fixed the case of mixed-constness of arguments of function
arrayZip
.
#8705
(
alexey-milovidov
)
When executing
CREATE
query, fold constant expressions in storage engine arguments. Replace empty database name with current database. Fixes
#6508
,
#3492
#9262
(
tavplubix
)
Now it's not possible to create or add columns with simple cyclic aliases like
a DEFAULT b, b DEFAULT a
.
#9603
(
alesapin
)
Fixed a bug with double move which may corrupt original part. This is relevant if you use
ALTER TABLE MOVE
#8680
(
Vladimir Chebotarev
)
Allow
interval
identifier to correctly parse without backticks. Fixed issue when a query cannot be executed even if the
interval
identifier is enclosed in backticks or double quotes. This fixes
#9124
.
#9142
(
alexey-milovidov
)
Fixed fuzz test and incorrect behaviour of
bitTestAll
/
bitTestAny
functions.
#9143
(
alexey-milovidov
)
Fix possible crash/wrong number of rows in
LIMIT n WITH TIES
when there are a lot of rows equal to n'th row.
#9464
(
tavplubix
)
Fix mutations with parts written with enabled
insert_quorum
.
#9463
(
alesapin
)
Fix data race at destruction of
Poco::HTTPServer
. It could happen when server is started and immediately shut down.
#9468
(
Anton Popov
)
Fix bug in which a misleading error message was shown when running
SHOW CREATE TABLE a_table_that_does_not_exist
.
#8899
(
achulkov2
)
Fixed
Parameters are out of bound
exception in some rare cases when we have a constant in the
SELECT
clause when we have an
ORDER BY
and a
LIMIT
clause.
#8892
(
Guillaume Tassery
)
Fix mutations finalization, when already done mutation can have status
is_done=0
.
#9217
(
alesapin
)
Prevent from executing
ALTER ADD INDEX
for MergeTree tables with old syntax, because it does not work.
#8822
(
Mikhail Korotov
)
During server startup do not access table, which
LIVE VIEW
depends on, so server will be able to start. Also remove
LIVE VIEW
dependencies when detaching
LIVE VIEW
.
LIVE VIEW
is an experimental feature.
#8824
(
tavplubix
)
Fix possible segfault in
MergeTreeRangeReader
, while executing
PREWHERE
.
#9106
(
Anton Popov
)
Fix possible mismatched checksums with column TTLs.
#9451
(
Anton Popov
)
Fixed a bug when parts were not being moved in background by TTL rules in case when there is only one volume.
#8672
(
Vladimir Chebotarev
)
Fixed the issue
Method createColumn() is not implemented for data type Set
. This fixes
#7799
.
#8674
(
alexey-milovidov
)
Now we will try finalize mutations more frequently.
#9427
(
alesapin
)
Fix
intDiv
by minus one constant
#9351
(
hcz
)
Fix possible race condition in
BlockIO
.
#9356
(
Nikolai Kochetov
)
Fix bug leading to server termination when trying to use / drop
Kafka
table created with wrong parameters.
#9513
(
filimonov
) | {"source_file": "2020.md"} | [
-0.028433291241526604,
0.015282265841960907,
-0.08561011403799057,
0.024918382987380028,
-0.07485206425189972,
-0.0286045391112566,
0.002420899225398898,
0.05037252977490425,
-0.0614866279065609,
0.038053590804338455,
0.006739505100995302,
-0.040720704942941666,
0.10397413372993469,
-0.035... |
89db54e4-5291-4666-998b-3fd775004e62 | Fix bug leading to server termination when trying to use / drop
Kafka
table created with wrong parameters.
#9513
(
filimonov
)
Added workaround if OS returns wrong result for
timer_create
function.
#8837
(
alexey-milovidov
)
Fixed error in usage of
min_marks_for_seek
parameter. Fixed the error message when there is no sharding key in Distributed table and we try to skip unused shards.
#8908
(
Azat Khuzhin
)
Improvement {#improvement-20}
Implement
ALTER MODIFY/DROP
queries on top of mutations for
ReplicatedMergeTree*
engines family. Now
ALTERS
blocks only at the metadata update stage, and don't block after that.
#8701
(
alesapin
)
Add ability to rewrite CROSS to INNER JOINs with
WHERE
section containing unqialified names.
#9512
(
Artem Zuikov
)
Make
SHOW TABLES
and
SHOW DATABASES
queries support the
WHERE
expressions and
FROM
/
IN
#9076
(
sundyli
)
Added a setting
deduplicate_blocks_in_dependent_materialized_views
.
#9070
(
urykhy
)
After recent changes MySQL client started to print binary strings in hex thereby making them not readable (
#9032
). The workaround in ClickHouse is to mark string columns as UTF-8, which is not always, but usually the case.
#9079
(
Yuriy Baranov
)
Add support of String and FixedString keys for
sumMap
#8903
(
Baudouin Giard
)
Support string keys in SummingMergeTree maps
#8933
(
Baudouin Giard
)
Signal termination of thread to the thread pool even if the thread has thrown exception
#8736
(
Ding Xiang Fei
)
Allow to set
query_id
in
clickhouse-benchmark
#9416
(
Anton Popov
)
Don't allow strange expressions in
ALTER TABLE ... PARTITION partition
query. This addresses
#7192
#8835
(
alexey-milovidov
)
The table
system.table_engines
now provides information about feature support (like
supports_ttl
or
supports_sort_order
).
#8830
(
Max Akhmedov
)
Enable
system.metric_log
by default. It will contain rows with values of ProfileEvents, CurrentMetrics collected with "collect_interval_milliseconds" interval (one second by default). The table is very small (usually in order of megabytes) and collecting this data by default is reasonable.
#9225
(
alexey-milovidov
)
Initialize query profiler for all threads in a group, e.g. it allows to fully profile insert-queries. Fixes
#6964
#8874
(
Ivan
)
Now temporary
LIVE VIEW
is created by
CREATE LIVE VIEW name WITH TIMEOUT [42] ...
instead of
CREATE TEMPORARY LIVE VIEW ...
, because the previous syntax was not consistent with
CREATE TEMPORARY TABLE ...
#9131
(
tavplubix
)
Add text_log.level configuration parameter to limit entries that goes to
system.text_log
table
#8809
(
Azat Khuzhin
)
Allow to put downloaded part to a disks/volumes according to TTL rules
#8598
(
Vladimir Chebotarev
) | {"source_file": "2020.md"} | [
-0.04726184532046318,
0.02838210202753544,
0.03174242004752159,
-0.008337507955729961,
-0.03510671481490135,
-0.056742433458566666,
-0.07380750775337219,
-0.011049862019717693,
0.02830539457499981,
0.07590285688638687,
0.004703958984464407,
-0.05738751217722893,
0.021778160706162453,
-0.05... |
f22b2681-922c-4970-b105-63c8c7061297 | Allow to put downloaded part to a disks/volumes according to TTL rules
#8598
(
Vladimir Chebotarev
)
For external MySQL dictionaries, allow to mutualize MySQL connection pool to "share" them among dictionaries. This option significantly reduces the number of connections to MySQL servers.
#9409
(
Clément Rodriguez
)
Show nearest query execution time for quantiles in
clickhouse-benchmark
output instead of interpolated values. It's better to show values that correspond to the execution time of some queries.
#8712
(
alexey-milovidov
)
Possibility to add key & timestamp for the message when inserting data to Kafka. Fixes
#7198
#8969
(
filimonov
)
If server is run from terminal, highlight thread number, query id and log priority by colors. This is for improved readability of correlated log messages for developers.
#8961
(
alexey-milovidov
)
Better exception message while loading tables for
Ordinary
database.
#9527
(
alexey-milovidov
)
Implement
arraySlice
for arrays with aggregate function states. This fixes
#9388
#9391
(
alexey-milovidov
)
Allow constant functions and constant arrays to be used on the right side of IN operator.
#8813
(
Anton Popov
)
If zookeeper exception has happened while fetching data for system.replicas, display it in a separate column. This implements
#9137
#9138
(
alexey-milovidov
)
Atomically remove MergeTree data parts on destroy.
#8402
(
Vladimir Chebotarev
)
Support row-level security for Distributed tables.
#8926
(
Ivan
)
Now we recognize suffix (like KB, KiB...) in settings values.
#8072
(
Mikhail Korotov
)
Prevent out of memory while constructing result of a large JOIN.
#8637
(
Artem Zuikov
)
Added names of clusters to suggestions in interactive mode in
clickhouse-client
.
#8709
(
alexey-milovidov
)
Initialize query profiler for all threads in a group, e.g. it allows to fully profile insert-queries
#8820
(
Ivan
)
Added column
exception_code
in
system.query_log
table.
#8770
(
Mikhail Korotov
)
Enabled MySQL compatibility server on port
9004
in the default server configuration file. Fixed password generation command in the example in configuration.
#8771
(
Yuriy Baranov
)
Prevent abort on shutdown if the filesystem is readonly. This fixes
#9094
#9100
(
alexey-milovidov
)
Better exception message when length is required in HTTP POST query.
#9453
(
alexey-milovidov
)
Add
_path
and
_file
virtual columns to
HDFS
and
File
engines and
hdfs
and
file
table functions
#8489
(
Olga Khvostikova
)
Fix error
Cannot find column
while inserting into
MATERIALIZED VIEW
in case if new column was added to view's internal table.
#8766
#8788
(
vzakaznikov
)
#8788
#8806
(
Nikolai Kochetov
)
#8803
(
Nikolai Kochetov
) | {"source_file": "2020.md"} | [
0.018763529136776924,
-0.02619219571352005,
-0.07974539697170258,
-0.0055653853341937065,
-0.07908529788255692,
-0.0885983556509018,
0.027140816673636436,
0.03863215073943138,
0.08038647472858429,
0.05604707822203636,
-0.04544571042060852,
-0.010932224802672863,
0.07849010080099106,
-0.007... |
f8323826-dc24-4b26-82c0-df11ec2f05cb | Fix progress over native client-server protocol, by send progress after final update (like logs). This may be relevant only to some third-party tools that are using native protocol.
#9495
(
Azat Khuzhin
)
Add a system metric tracking the number of client connections using MySQL protocol (
#9013
).
#9015
(
Eugene Klimov
)
From now on, HTTP responses will have
X-ClickHouse-Timezone
header set to the same timezone value that
SELECT timezone()
would report.
#9493
(
Denis Glazachev
)
Performance Improvement {#performance-improvement-16}
Improve performance of analysing index with IN
#9261
(
Anton Popov
)
Simpler and more efficient code in Logical Functions + code cleanups. A followup to
#8718
#8728
(
Alexander Kazakov
)
Overall performance improvement (in range of 5%..200% for affected queries) by ensuring even more strict aliasing with C++20 features.
#9304
(
Amos Bird
)
More strict aliasing for inner loops of comparison functions.
#9327
(
alexey-milovidov
)
More strict aliasing for inner loops of arithmetic functions.
#9325
(
alexey-milovidov
)
A ~3 times faster implementation for ColumnVector::replicate(), via which ColumnConst::convertToFullColumn() is implemented. Also will be useful in tests when materializing constants.
#9293
(
Alexander Kazakov
)
Another minor performance improvement to
ColumnVector::replicate()
(this speeds up the
materialize
function and higher order functions) an even further improvement to
#9293
#9442
(
Alexander Kazakov
)
Improved performance of
stochasticLinearRegression
aggregate function. This patch is contributed by Intel.
#8652
(
alexey-milovidov
)
Improve performance of
reinterpretAsFixedString
function.
#9342
(
alexey-milovidov
)
Do not send blocks to client for
Null
format in processors pipeline.
#8797
(
Nikolai Kochetov
)
#8767
(
Alexander Kuzmenkov
)
Build/Testing/Packaging Improvement {#buildtestingpackaging-improvement-20}
Exception handling now works correctly on Windows Subsystem for Linux. See https://github.com/ClickHouse-Extras/libunwind/pull/3 This fixes
#6480
#9564
(
sobolevsv
)
Replace
readline
with
replxx
for interactive line editing in
clickhouse-client
#8416
(
Ivan
)
Better build time and less template instantiations in FunctionsComparison.
#9324
(
alexey-milovidov
)
Added integration with
clang-tidy
in CI. See also
#6044
#9566
(
alexey-milovidov
)
Now we link ClickHouse in CI using
lld
even for
gcc
.
#9049
(
alesapin
)
Allow to randomize thread scheduling and insert glitches when
THREAD_FUZZER_*
environment variables are set. This helps testing.
#9459
(
alexey-milovidov
)
Enable secure sockets in stateless tests
#9288
(
tavplubix
)
Make SPLIT_SHARED_LIBRARIES=OFF more robust
#9156
(
Azat Khuzhin
)
Make "performance_introspection_and_logging" test reliable to random server stuck. This may happen in CI environment. See also
#9515
#9528
(
alexey-milovidov
) | {"source_file": "2020.md"} | [
-0.014776618219912052,
0.05186422914266586,
0.0076143755577504635,
0.006557235959917307,
-0.04113505780696869,
-0.11206857115030289,
-0.01751166209578514,
-0.018896833062171936,
-0.003577170195057988,
0.02568325400352478,
-0.06519880145788193,
0.016880925744771957,
0.028380420058965683,
0.... |
ea3ade82-a4f2-43db-9238-0f475e01f42c | Make "performance_introspection_and_logging" test reliable to random server stuck. This may happen in CI environment. See also
#9515
#9528
(
alexey-milovidov
)
Validate XML in style check.
#9550
(
alexey-milovidov
)
Fixed race condition in test
00738_lock_for_inner_table
. This test relied on sleep.
#9555
(
alexey-milovidov
)
Remove performance tests of type
once
. This is needed to run all performance tests in statistical comparison mode (more reliable).
#9557
(
alexey-milovidov
)
Added performance test for arithmetic functions.
#9326
(
alexey-milovidov
)
Added performance test for
sumMap
and
sumMapWithOverflow
aggregate functions. Follow-up for
#8933
#8947
(
alexey-milovidov
)
Ensure style of ErrorCodes by style check.
#9370
(
alexey-milovidov
)
Add script for tests history.
#8796
(
alesapin
)
Add GCC warning
-Wsuggest-override
to locate and fix all places where
override
keyword must be used.
#8760
(
kreuzerkrieg
)
Ignore weak symbol under Mac OS X because it must be defined
#9538
(
Deleted user
)
Normalize running time of some queries in performance tests. This is done in preparation to run all the performance tests in comparison mode.
#9565
(
alexey-milovidov
)
Fix some tests to support pytest with query tests
#9062
(
Ivan
)
Enable SSL in build with MSan, so server will not fail at startup when running stateless tests
#9531
(
tavplubix
)
Fix database substitution in test results
#9384
(
Ilya Yatsishin
)
Build fixes for miscellaneous platforms
#9381
(
proller
)
#8755
(
proller
)
#8631
(
proller
)
Added disks section to stateless-with-coverage test docker image
#9213
(
Pavel Kovalenko
)
Get rid of in-source-tree files when building with GRPC
#9588
(
Amos Bird
)
Slightly faster build time by removing SessionCleaner from Context. Make the code of SessionCleaner more simple.
#9232
(
alexey-milovidov
)
Updated checking for hung queries in clickhouse-test script
#8858
(
Alexander Kazakov
)
Removed some useless files from repository.
#8843
(
alexey-milovidov
)
Changed type of math perftests from
once
to
loop
.
#8783
(
Nikolai Kochetov
)
Add docker image which allows to build interactive code browser HTML report for our codebase.
#8781
(
alesapin
) See
Woboq Code Browser
Suppress some test failures under MSan.
#8780
(
Alexander Kuzmenkov
)
Speedup "exception while insert" test. This test often time out in debug-with-coverage build.
#8711
(
alexey-milovidov
)
Updated
libcxx
and
libcxxabi
to master. In preparation to
#9304
#9308
(
alexey-milovidov
)
Fix flacky test
00910_zookeeper_test_alter_compression_codecs
.
#9525
(
alexey-milovidov
)
Clean up duplicated linker flags. Make sure the linker won't look up an unexpected symbol.
#9433
(
Amos Bird
)
Add
clickhouse-odbc
driver into test images. This allows to test interaction of ClickHouse with ClickHouse via its own ODBC driver.
#9348
(
filimonov
) | {"source_file": "2020.md"} | [
0.02404629997909069,
-0.008005376905202866,
0.0020389161072671413,
0.030599331483244896,
-0.007009080145508051,
-0.09150255471467972,
-0.04533974081277847,
-0.01034556981176138,
-0.010866099037230015,
0.057332511991262436,
-0.01362037193030119,
-0.05989941209554672,
-0.00971677154302597,
-... |
518f5280-469b-4150-a7ce-ad7e4131cf74 | Add
clickhouse-odbc
driver into test images. This allows to test interaction of ClickHouse with ClickHouse via its own ODBC driver.
#9348
(
filimonov
)
Fix several bugs in unit tests.
#9047
(
alesapin
)
Enable
-Wmissing-include-dirs
GCC warning to eliminate all non-existing includes - mostly as a result of CMake scripting errors
#8704
(
kreuzerkrieg
)
Describe reasons if query profiler cannot work. This is intended for
#9049
#9144
(
alexey-milovidov
)
Update OpenSSL to upstream master. Fixed the issue when TLS connections may fail with the message
OpenSSL SSL_read: error:14094438:SSL routines:ssl3_read_bytes:tlsv1 alert internal error
and
SSL Exception: error:2400006E:random number generator::error retrieving entropy
. The issue was present in version 20.1.
#8956
(
alexey-milovidov
)
Update Dockerfile for server
#8893
(
Ilya Mazaev
)
Minor fixes in build-gcc-from-sources script
#8774
(
Michael Nacharov
)
Replace
numbers
to
zeros
in perftests where
number
column is not used. This will lead to more clean test results.
#9600
(
Nikolai Kochetov
)
Fix stack overflow issue when using initializer_list in Column constructors.
#9367
(
Deleted user
)
Upgrade librdkafka to v1.3.0. Enable bundled
rdkafka
and
gsasl
libraries on Mac OS X.
#9000
(
Andrew Onyshchuk
)
build fix on GCC 9.2.0
#9306
(
vxider
)
ClickHouse release v20.1 {#clickhouse-release-v201}
ClickHouse release v20.1.16.120-stable 2020-60-26 {#clickhouse-release-v20116120-stable-2020-60-26}
Bug Fix {#bug-fix-50}
Fix rare crash caused by using
Nullable
column in prewhere condition. Continuation of
#11608
.
#11869
(
Nikolai Kochetov
).
Don't allow arrayJoin inside higher order functions. It was leading to broken protocol synchronization. This closes
#3933
.
#11846
(
alexey-milovidov
).
Fix unexpected behaviour of queries like
SELECT *, xyz.*
which were success while an error expected.
#11753
(
hexiaoting
).
Fixed LOGICAL_ERROR caused by wrong type deduction of complex literals in Values input format.
#11732
(
tavplubix
).
Fix
ORDER BY ... WITH FILL
over const columns.
#11697
(
Anton Popov
).
Pass proper timeouts when communicating with XDBC bridge. Recently timeouts were not respected when checking bridge liveness and receiving meta info.
#11690
(
alexey-milovidov
).
Add support for regular expressions with case-insensitive flags. This fixes
#11101
and fixes
#11506
.
#11649
(
alexey-milovidov
).
Fix bloom filters for String (data skipping indices).
#11638
(
Azat Khuzhin
).
Fix rare crash caused by using
Nullable
column in prewhere condition. (Probably it is connected with
#11572
somehow).
#11608
(
Nikolai Kochetov
).
Fix wrong exit code of the clickhouse-client, when exception.code() % 256 = 0.
#11601
(
filimonov
).
Fix trivial error in log message about "Mark cache size was lowered" at server startup. This closes
#11399
.
#11589
(
alexey-milovidov
). | {"source_file": "2020.md"} | [
-0.029321633279323578,
0.002371455542743206,
-0.03435308858752251,
0.038822855800390244,
0.022896360605955124,
-0.10003909468650818,
-0.037499118596315384,
0.009602522477507591,
0.009473267011344433,
-0.09107956290245056,
0.0049590240232646465,
-0.0490257553756237,
0.04418501257896423,
0.0... |
71cedabe-ec72-48df-a2f1-868ef7c93c14 | Fix trivial error in log message about "Mark cache size was lowered" at server startup. This closes
#11399
.
#11589
(
alexey-milovidov
).
Now clickhouse-server docker container will prefer IPv6 checking server aliveness.
#11550
(
Ivan Starkov
).
Fix memory leak when exception is thrown in the middle of aggregation with -State functions. This fixes
#8995
.
#11496
(
alexey-milovidov
).
Fix usage of primary key wrapped into a function with 'FINAL' modifier and 'ORDER BY' optimization.
#10715
(
Anton Popov
).
ClickHouse release v20.1.15.109-stable 2020-06-19 {#clickhouse-release-v20115109-stable-2020-06-19}
Bug Fix {#bug-fix-51}
Fix excess lock for structure during alter.
#11790
(
alesapin
).
ClickHouse release v20.1.14.107-stable 2020-06-11 {#clickhouse-release-v20114107-stable-2020-06-11}
Bug Fix {#bug-fix-52}
Fix error
Size of offsets does not match size of column
for queries with
PREWHERE column in (subquery)
and
ARRAY JOIN
.
#11580
(
Nikolai Kochetov
).
ClickHouse release v20.1.13.105-stable 2020-06-10 {#clickhouse-release-v20113105-stable-2020-06-10}
Bug Fix {#bug-fix-53}
Fix the error
Data compressed with different methods
that can happen if
min_bytes_to_use_direct_io
is enabled and PREWHERE is active and using SAMPLE or high number of threads. This fixes
#11539
.
#11540
(
alexey-milovidov
).
Fix return compressed size for codecs.
#11448
(
Nikolai Kochetov
).
Fix server crash when a column has compression codec with non-literal arguments. Fixes
#11365
.
#11431
(
alesapin
).
Fix pointInPolygon with nan as point. Fixes
#11375
.
#11421
(
Alexey Ilyukhov
).
Fixed geohashesInBox with arguments outside of latitude/longitude range.
#11403
(
Vasily Nemkov
).
Fix possible
Pipeline stuck
error for queries with external sort and limit. Fixes
#11359
.
#11366
(
Nikolai Kochetov
).
Fix crash in
quantilesExactWeightedArray
.
#11337
(
Nikolai Kochetov
).
Make writing to
MATERIALIZED VIEW
with setting
parallel_view_processing = 1
parallel again. Fixes
#10241
.
#11330
(
Nikolai Kochetov
).
Fix visitParamExtractRaw when extracted JSON has strings with unbalanced { or [.
#11318
(
Ewout
).
Fix very rare race condition in ThreadPool.
#11314
(
alexey-milovidov
).
Fix potential uninitialized memory in conversion. Example:
SELECT toIntervalSecond(now64())
.
#11311
(
alexey-milovidov
).
Fix the issue when index analysis cannot work if a table has Array column in primary key and if a query is filtering by this column with
empty
or
notEmpty
functions. This fixes
#11286
.
#11303
(
alexey-milovidov
). | {"source_file": "2020.md"} | [
-0.030854860320687294,
0.03571046516299248,
0.041454385966062546,
-0.011806793510913849,
0.040616054087877274,
-0.03779686614871025,
-0.03420378267765045,
-0.0010655922815203667,
-0.05161760374903679,
0.0785195529460907,
0.01128102745860815,
0.09434077888727188,
-0.061395060271024704,
0.00... |
e1715a9b-088b-4735-b294-98d3f62eb5db | Fix bug when query speed estimation can be incorrect and the limit of
min_execution_speed
may not work or work incorrectly if the query is throttled by
max_network_bandwidth
,
max_execution_speed
or
priority
settings. Change the default value of
timeout_before_checking_execution_speed
to non-zero, because otherwise the settings
min_execution_speed
and
max_execution_speed
have no effect. This fixes
#11297
. This fixes
#5732
. This fixes
#6228
. Usability improvement: avoid concatenation of exception message with progress bar in
clickhouse-client
.
#11296
(
alexey-milovidov
).
Fix crash while reading malformed data in Protobuf format. This fixes
#5957
, fixes
#11203
.
#11258
(
Vitaly Baranov
).
Fix possible error
Cannot capture column
for higher-order functions with
Array(Array(LowCardinality))
captured argument.
#11185
(
Nikolai Kochetov
).
If data skipping index is dependent on columns that are going to be modified during background merge (for SummingMergeTree, AggregatingMergeTree as well as for TTL GROUP BY), it was calculated incorrectly. This issue is fixed by moving index calculation after merge so the index is calculated on merged data.
#11162
(
Azat Khuzhin
).
Remove logging from mutation finalization task if nothing was finalized.
#11109
(
alesapin
).
Fixed parseDateTime64BestEffort argument resolution bugs.
#10925
.
#11038
(
Vasily Nemkov
).
Fix incorrect raw data size in method getRawData().
#10964
(
Igr
).
Fix backward compatibility with tuples in Distributed tables.
#10889
(
Anton Popov
).
Fix SIGSEGV in StringHashTable (if such key does not exist).
#10870
(
Azat Khuzhin
).
Fixed bug in
ReplicatedMergeTree
which might cause some
ALTER
on
OPTIMIZE
query to hang waiting for some replica after it become inactive.
#10849
(
tavplubix
).
Fix columns order after Block::sortColumns() (also add a test that shows that it affects some real use case - Buffer engine).
#10826
(
Azat Khuzhin
).
Fix the issue with ODBC bridge when no quoting of identifiers is requested. This fixes
#7984
.
#10821
(
alexey-milovidov
).
Fix UBSan and MSan report in DateLUT.
#10798
(
alexey-milovidov
).
Make use of
src_type
for correct type conversion in key conditions. Fixes
#6287
.
#10791
(
Andrew Onyshchuk
).
Fix
parallel_view_processing
behavior. Now all insertions into
MATERIALIZED VIEW
without exception should be finished if exception happened. Fixes
#10241
.
#10757
(
Nikolai Kochetov
).
Fix combinator -OrNull and -OrDefault when combined with -State.
#10741
(
hcz
).
Fix disappearing totals. Totals could have being filtered if query had had join or subquery with external where condition. Fixes
#10674
.
#10698
(
Nikolai Kochetov
).
Fix multiple usages of
IN
operator with the identical set in one query.
#10686
(
Anton Popov
).
Fix order of parameters in AggregateTransform constructor.
#10667
(
palasonic1
). | {"source_file": "2020.md"} | [
0.03504442051053047,
-0.00041419328772462904,
-0.03199290856719017,
-0.022580372169613838,
-0.04692734405398369,
-0.0644528940320015,
0.0006764516001567245,
0.020578037947416306,
-0.054814413189888,
0.02577373757958412,
0.022832417860627174,
-0.03131027892231941,
-0.02505679801106453,
-0.0... |
dd2fe82c-ecfc-48a1-9cfe-b7aa13bbd6b7 | Fix multiple usages of
IN
operator with the identical set in one query.
#10686
(
Anton Popov
).
Fix order of parameters in AggregateTransform constructor.
#10667
(
palasonic1
).
Fix the lack of parallel execution of remote queries with
distributed_aggregation_memory_efficient
enabled. Fixes
#10655
.
#10664
(
Nikolai Kochetov
).
Fix predicates optimization for distributed queries (
enable_optimize_predicate_expression=1
) for queries with
HAVING
section (i.e. when filtering on the server initiator is required), by preserving the order of expressions (and this is enough to fix), and also force aggregator use column names over indexes. Fixes:
#10613
,
#11413
.
#10621
(
Azat Khuzhin
).
Fix error
the BloomFilter false positive must be a double number between 0 and 1
#10551
.
#10569
(
Winter Zhang
).
Fix SELECT of column ALIAS which default expression type different from column type.
#10563
(
Azat Khuzhin
).
Implemented comparison between DateTime64 and String values (just like for DateTime).
#10560
(
Vasily Nemkov
).
ClickHouse release v20.1.12.86, 2020-05-26 {#clickhouse-release-v2011286-2020-05-26}
Bug Fix {#bug-fix-54}
Fixed incompatibility of two-level aggregation between versions 20.1 and earlier. This incompatibility happens when different versions of ClickHouse are used on initiator node and remote nodes and the size of GROUP BY result is large and aggregation is performed by a single String field. It leads to several unmerged rows for a single key in result.
#10952
(
alexey-milovidov
).
Fixed data corruption for
LowCardinality(FixedString)
key column in
SummingMergeTree
which could have happened after merge. Fixes
#10489
.
#10721
(
Nikolai Kochetov
).
Fixed bug, which causes http requests stuck on client close when
readonly=2
and
cancel_http_readonly_queries_on_client_close=1
. Fixes
#7939
,
#7019
,
#7736
,
#7091
.
#10684
(
tavplubix
).
Fixed a bug when on
SYSTEM DROP DNS CACHE
query also drop caches, which are used to check if user is allowed to connect from some IP addresses.
#10608
(
tavplubix
).
Fixed incorrect scalar results inside inner query of
MATERIALIZED VIEW
in case if this query contained dependent table.
#10603
(
Nikolai Kochetov
).
Fixed the situation when mutation finished all parts, but hung up in
is_done=0
.
#10526
(
alesapin
).
Fixed overflow at beginning of unix epoch for timezones with fractional offset from UTC. This fixes
#9335
.
#10513
(
alexey-milovidov
).
Fixed improper shutdown of Distributed storage.
#10491
(
Azat Khuzhin
).
Fixed numeric overflow in
simpleLinearRegression
over large integers.
#10474
(
hcz
).
Fixed removing metadata directory when attach database fails.
#10442
(
Winter Zhang
).
Added a check of number and type of arguments when creating
BloomFilter
index
#9623
.
#10431
(
Winter Zhang
). | {"source_file": "2020.md"} | [
-0.018471261486411095,
0.029316935688257217,
-0.002302102977409959,
0.04691320285201073,
-0.07094431668519974,
0.016820212826132774,
0.012485843151807785,
0.010633434168994427,
0.03974010422825813,
0.02314949221909046,
0.010582132264971733,
-0.03967884182929993,
0.07416415959596634,
-0.039... |
b76e7607-aef8-43a1-930f-e535b386b5ab | Added a check of number and type of arguments when creating
BloomFilter
index
#9623
.
#10431
(
Winter Zhang
).
Fixed the issue when a query with
ARRAY JOIN
,
ORDER BY
and
LIMIT
may return incomplete result. This fixes
#10226
.
#10427
(
alexey-milovidov
).
Prefer
fallback_to_stale_replicas
over
skip_unavailable_shards
.
#10422
(
Azat Khuzhin
).
Fixed wrong flattening of
Array(Tuple(...))
data types. This fixes
#10259
.
#10390
(
alexey-milovidov
).
Fixed wrong behavior in
HashTable
that caused compilation error when trying to read HashMap from buffer.
#10386
(
palasonic1
).
Fixed possible
Pipeline stuck
error in
ConcatProcessor
which could have happened in remote query.
#10381
(
Nikolai Kochetov
).
Fixed error
Pipeline stuck
with
max_rows_to_group_by
and
group_by_overflow_mode = 'break'
.
#10279
(
Nikolai Kochetov
).
Fixed several bugs when some data was inserted with quorum, then deleted somehow (DROP PARTITION, TTL) and this leaded to the stuck of INSERTs or false-positive exceptions in SELECTs. This fixes
#9946
.
#10188
(
Nikita Mikhaylov
).
Fixed incompatibility when versions prior to 18.12.17 are used on remote servers and newer is used on initiating server, and GROUP BY both fixed and non-fixed keys, and when two-level group by method is activated.
#3254
(
alexey-milovidov
).
Build/Testing/Packaging Improvement {#buildtestingpackaging-improvement-21}
Added CA certificates to clickhouse-server docker image.
#10476
(
filimonov
).
ClickHouse release v20.1.10.70, 2020-04-17 {#clickhouse-release-v2011070-2020-04-17}
Bug Fix {#bug-fix-55}
Fix rare possible exception
Cannot drain connections: cancel first
.
#10239
(
Nikolai Kochetov
).
Fixed bug where ClickHouse would throw
'Unknown function lambda.'
error message when user tries to run
ALTER UPDATE/DELETE
on tables with
ENGINE = Replicated*
. Check for nondeterministic functions now handles lambda expressions correctly.
#10237
(
Alexander Kazakov
).
Fix
parseDateTimeBestEffort
for strings in RFC-2822 when day of week is Tuesday or Thursday. This fixes
#10082
.
#10214
(
alexey-milovidov
).
Fix column names of constants inside
JOIN
that may clash with names of constants outside of
JOIN
.
#10207
(
alexey-milovidov
).
Fix possible inifinite query execution when the query actually should stop on LIMIT, while reading from infinite source like
system.numbers
or
system.zeros
.
#10206
(
Nikolai Kochetov
).
Fix move-to-prewhere optimization in presense of
arrayJoin
functions (in certain cases). This fixes
#10092
.
#10195
(
alexey-milovidov
).
Add the ability to relax the restriction on non-deterministic functions usage in mutations with
allow_nondeterministic_mutations
setting.
#10186
(
filimonov
).
Convert blocks if structure does not match on
INSERT
into table with
Distributed
engine.
#10135
(
Azat Khuzhin
). | {"source_file": "2020.md"} | [
0.04602042958140373,
0.022477610036730766,
0.038232412189245224,
-0.043101198971271515,
-0.04708857089281082,
-0.04679669812321663,
-0.07190867513418198,
-0.025421462953090668,
-0.013975321315228939,
0.011018509045243263,
-0.0016194564523175359,
0.03191111981868744,
0.03310730680823326,
-0... |
ec57ce6f-9a4b-471b-a42e-11517e7469c4 | Convert blocks if structure does not match on
INSERT
into table with
Distributed
engine.
#10135
(
Azat Khuzhin
).
Fix
SIGSEGV
on
INSERT
into
Distributed
table when its structure differs from the underlying tables.
#10105
(
Azat Khuzhin
).
Fix possible rows loss for queries with
JOIN
and
UNION ALL
. Fixes
#9826
,
#10113
.
#10099
(
Nikolai Kochetov
).
Add arguments check and support identifier arguments for MySQL Database Engine.
#10077
(
Winter Zhang
).
Fix bug in clickhouse dictionary source from localhost clickhouse server. The bug may lead to memory corruption if types in dictionary and source are not compatible.
#10071
(
alesapin
).
Fix error
Cannot clone block with columns because block has 0 columns ... While executing GroupingAggregatedTransform
. It happened when setting
distributed_aggregation_memory_efficient
was enabled, and distributed query read aggregating data with different level from different shards (mixed single and two level aggregation).
#10063
(
Nikolai Kochetov
).
Fix a segmentation fault that could occur in
GROUP BY
over string keys containing trailing zero bytes (
#8636
,
#8925
).
#10025
(
Alexander Kuzmenkov
).
Fix bug in which the necessary tables weren't retrieved at one of the processing stages of queries to some databases. Fixes
#9699
.
#9949
(
achulkov2
).
Fix
'Not found column in block'
error when
JOIN
appears with
TOTALS
. Fixes
#9839
.
#9939
(
Artem Zuikov
).
Fix a bug with
ON CLUSTER
DDL queries freezing on server startup.
#9927
(
Gagan Arneja
).
Fix
TRUNCATE
for Join table engine (
#9917
).
#9920
(
Amos Bird
).
Fix
'scalar does not exist'
error in ALTER queries (
#9878
).
#9904
(
Amos Bird
).
Fix race condition between drop and optimize in
ReplicatedMergeTree
.
#9901
(
alesapin
).
Fixed
DeleteOnDestroy
logic in
ATTACH PART
which could lead to automatic removal of attached part and added few tests.
#9410
(
Vladimir Chebotarev
).
Build/Testing/Packaging Improvement {#buildtestingpackaging-improvement-22}
Fix unit test
collapsing_sorted_stream
.
#9367
(
Deleted user
).
ClickHouse release v20.1.9.54, 2020-03-28 {#clickhouse-release-v201954-2020-03-28}
Bug Fix {#bug-fix-56}
Fix
'Different expressions with the same alias'
error when query has
PREWHERE
and
WHERE
on distributed table and
SET distributed_product_mode = 'local'
.
#9871
(
Artem Zuikov
).
Fix mutations excessive memory consumption for tables with a composite primary key. This fixes
#9850
.
#9860
(
alesapin
).
For INSERT queries shard now clamps the settings got from the initiator to the shard's constaints instead of throwing an exception. This fix allows to send
INSERT
queries to a shard with another constraints. This change improves fix
#9447
.
#9852
(
Vitaly Baranov
). | {"source_file": "2020.md"} | [
-0.030688699334859848,
-0.032126136124134064,
-0.04333101585507393,
0.01939806342124939,
-0.06540782749652863,
-0.111923448741436,
-0.02313554845750332,
-0.013317902572453022,
-0.022274143993854523,
0.024029865860939026,
0.03108147718012333,
-0.0538807138800621,
0.08914439380168915,
-0.045... |
a29afa41-fcc0-4282-8b87-7dd0e326ef09 | Fix possible exception
Got 0 in totals chunk, expected 1
on client. It happened for queries with
JOIN
in case if right joined table had zero rows. Example:
select * from system.one t1 join system.one t2 on t1.dummy = t2.dummy limit 0 FORMAT TabSeparated;
. Fixes
#9777
.
#9823
(
Nikolai Kochetov
).
Fix
SIGSEGV
with
optimize_skip_unused_shards
when type cannot be converted.
#9804
(
Azat Khuzhin
).
Fixed a few cases when timezone of the function argument wasn't used properly.
#9574
(
Vasily Nemkov
).
Improvement {#improvement-21}
Remove
ORDER BY
stage from mutations because we read from a single ordered part in a single thread. Also add check that the order of rows in mutation is ordered in sorting key order and this order is not violated.
#9886
(
alesapin
).
Build/Testing/Packaging Improvement {#buildtestingpackaging-improvement-23}
Clean up duplicated linker flags. Make sure the linker won't look up an unexpected symbol.
#9433
(
Amos Bird
).
ClickHouse release v20.1.8.41, 2020-03-20 {#clickhouse-release-v201841-2020-03-20}
Bug Fix {#bug-fix-57}
Fix possible permanent
Cannot schedule a task
error (due to unhandled exception in
ParallelAggregatingBlockInputStream::Handler::onFinish/onFinishThread
). This fixes
#6833
.
#9154
(
Azat Khuzhin
)
Fix excessive memory consumption in
ALTER
queries (mutations). This fixes
#9533
and
#9670
.
#9754
(
alesapin
)
Fix bug in backquoting in external dictionaries DDL. This fixes
#9619
.
#9734
(
alesapin
)
ClickHouse release v20.1.7.38, 2020-03-18 {#clickhouse-release-v201738-2020-03-18}
Bug Fix {#bug-fix-58}
Fixed incorrect internal function names for
sumKahan
and
sumWithOverflow
. I lead to exception while using this functions in remote queries.
#9636
(
Azat Khuzhin
). This issue was in all ClickHouse releases.
Allow
ALTER ON CLUSTER
of
Distributed
tables with internal replication. This fixes
#3268
.
#9617
(
shinoi2
). This issue was in all ClickHouse releases.
Fix possible exceptions
Size of filter does not match size of column
and
Invalid number of rows in Chunk
in
MergeTreeRangeReader
. They could appear while executing
PREWHERE
in some cases. Fixes
#9132
.
#9612
(
Anton Popov
)
Fixed the issue: timezone was not preserved if you write a simple arithmetic expression like
time + 1
(in contrast to an expression like
time + INTERVAL 1 SECOND
). This fixes
#5743
.
#9323
(
alexey-milovidov
). This issue was in all ClickHouse releases.
Now it's not possible to create or add columns with simple cyclic aliases like
a DEFAULT b, b DEFAULT a
.
#9603
(
alesapin
)
Fixed the issue when padding at the end of base64 encoded value can be malformed. Update base64 library. This fixes
#9491
, closes
#9492
#9500
(
alexey-milovidov
)
Fix data race at destruction of
Poco::HTTPServer
. It could happen when server is started and immediately shut down.
#9468
(
Anton Popov
) | {"source_file": "2020.md"} | [
-0.02281329222023487,
0.0474119633436203,
0.046555742621421814,
-0.019229568541049957,
0.002596924314275384,
-0.11536570638418198,
-0.04637927561998367,
0.01363716647028923,
-0.01168353296816349,
0.019962593913078308,
0.02639150619506836,
-0.005909326486289501,
0.031188657507300377,
-0.050... |
88a0e505-f48b-4087-b770-d17bb13751fb | Fix data race at destruction of
Poco::HTTPServer
. It could happen when server is started and immediately shut down.
#9468
(
Anton Popov
)
Fix possible crash/wrong number of rows in
LIMIT n WITH TIES
when there are a lot of rows equal to n'th row.
#9464
(
tavplubix
)
Fix possible mismatched checksums with column TTLs.
#9451
(
Anton Popov
)
Fix crash when a user tries to
ALTER MODIFY SETTING
for old-formated
MergeTree
table engines family.
#9435
(
alesapin
)
Now we will try finalize mutations more frequently.
#9427
(
alesapin
)
Fix replication protocol incompatibility introduced in
#8598
.
#9412
(
alesapin
)
Fix not(has()) for the bloom_filter index of array types.
#9407
(
achimbab
)
Fixed the behaviour of
match
and
extract
functions when haystack has zero bytes. The behaviour was wrong when haystack was constant. This fixes
#9160
#9163
(
alexey-milovidov
)
#9345
(
alexey-milovidov
)
Build/Testing/Packaging Improvement {#buildtestingpackaging-improvement-24}
Exception handling now works correctly on Windows Subsystem for Linux. See https://github.com/ClickHouse-Extras/libunwind/pull/3 This fixes
#6480
#9564
(
sobolevsv
)
ClickHouse release v20.1.6.30, 2020-03-05 {#clickhouse-release-v201630-2020-03-05}
Bug Fix {#bug-fix-59}
Fix data incompatibility when compressed with
T64
codec.
#9039
(abyss7)
Fix order of ranges while reading from MergeTree table in one thread. Fixes
#8964
.
#9050
(CurtizJ)
Fix possible segfault in
MergeTreeRangeReader
, while executing
PREWHERE
. Fixes
#9064
.
#9106
(CurtizJ)
Fix
reinterpretAsFixedString
to return
FixedString
instead of
String
.
#9052
(oandrew)
Fix
joinGet
with nullable return types. Fixes
#8919
#9014
(amosbird)
Fix fuzz test and incorrect behaviour of bitTestAll/bitTestAny functions.
#9143
(alexey-milovidov)
Fix the behaviour of match and extract functions when haystack has zero bytes. The behaviour was wrong when haystack was constant. Fixes
#9160
#9163
(alexey-milovidov)
Fixed execution of inversed predicates when non-strictly monotinic functional index is used. Fixes
#9034
#9223
(Akazz)
Allow to rewrite
CROSS
to
INNER JOIN
if there's
[NOT] LIKE
operator in
WHERE
section. Fixes
#9191
#9229
(4ertus2)
Allow first column(s) in a table with Log engine be an alias.
#9231
(abyss7)
Allow comma join with
IN()
inside. Fixes
#7314
.
#9251
(4ertus2)
Improve
ALTER MODIFY/ADD
queries logic. Now you cannot
ADD
column without type,
MODIFY
default expression does not change type of column and
MODIFY
type does not loose default expression value. Fixes
#8669
.
#9227
(alesapin)
Fix mutations finalization, when already done mutation can have status is_done=0.
#9217
(alesapin)
Support "Processors" pipeline for system.numbers and system.numbers_mt. This also fixes the bug when
max_execution_time
is not respected.
#7796
(KochetovNicolai) | {"source_file": "2020.md"} | [
-0.08223378658294678,
-0.0050910459831357,
-0.014824043959379196,
-0.024705156683921814,
-0.034943874925374985,
-0.11707761883735657,
-0.06610921770334244,
-0.0396355465054512,
0.006692938972264528,
0.027527645230293274,
0.012758069671690464,
0.05493595451116562,
-0.0193612203001976,
-0.04... |
9840c7e4-d484-4047-8980-9f277308af14 | #9217
(alesapin)
Support "Processors" pipeline for system.numbers and system.numbers_mt. This also fixes the bug when
max_execution_time
is not respected.
#7796
(KochetovNicolai)
Fix wrong counting of
DictCacheKeysRequestedFound
metric.
#9411
(nikitamikhaylov)
Added a check for storage policy in
ATTACH PARTITION FROM
,
REPLACE PARTITION
,
MOVE TO TABLE
which otherwise could make data of part inaccessible after restart and prevent ClickHouse to start.
#9383
(excitoon)
Fixed UBSan report in
MergeTreeIndexSet
. This fixes
#9250
#9365
(alexey-milovidov)
Fix possible datarace in BlockIO.
#9356
(KochetovNicolai)
Support for
UInt64
numbers that don't fit in Int64 in JSON-related functions. Update
SIMDJSON
to master. This fixes
#9209
#9344
(alexey-milovidov)
Fix the issue when the amount of free space is not calculated correctly if the data directory is mounted to a separate device. For default disk calculate the free space from data subdirectory. This fixes
#7441
#9257
(millb)
Fix the issue when TLS connections may fail with the message
OpenSSL SSL_read: error:14094438:SSL routines:ssl3_read_bytes:tlsv1 alert internal error and SSL Exception: error:2400006E:random number generator::error retrieving entropy.
Update OpenSSL to upstream master.
#8956
(alexey-milovidov)
When executing
CREATE
query, fold constant expressions in storage engine arguments. Replace empty database name with current database. Fixes
#6508
,
#3492
. Also fix check for local address in ClickHouseDictionarySource.
#9262
(tabplubix)
Fix segfault in
StorageMerge
, which can happen when reading from StorageFile.
#9387
(tabplubix)
Prevent losing data in
Kafka
in rare cases when exception happens after reading suffix but before commit. Fixes
#9378
. Related:
#7175
#9507
(filimonov)
Fix bug leading to server termination when trying to use / drop
Kafka
table created with wrong parameters. Fixes
#9494
. Incorporates
#9507
.
#9513
(filimonov)
New Feature {#new-feature-12}
Add
deduplicate_blocks_in_dependent_materialized_views
option to control the behaviour of idempotent inserts into tables with materialized views. This new feature was added to the bugfix release by a special request from Altinity.
#9070
(urykhy)
ClickHouse release v20.1.2.4, 2020-01-22 {#clickhouse-release-v20124-2020-01-22}
Backward Incompatible Change {#backward-incompatible-change-10}
Make the setting
merge_tree_uniform_read_distribution
obsolete. The server still recognizes this setting but it has no effect.
#8308
(
alexey-milovidov
)
Changed return type of the function
greatCircleDistance
to
Float32
because now the result of calculation is
Float32
.
#7993
(
alexey-milovidov
) | {"source_file": "2020.md"} | [
-0.047324515879154205,
-0.04161100089550018,
-0.027951791882514954,
-0.008570928126573563,
-0.039309799671173096,
-0.14027684926986694,
-0.026856085285544395,
0.05432095378637314,
-0.021331937983632088,
0.03166773170232773,
0.05808250233530998,
0.00886556040495634,
-0.037128936499357224,
-... |
060c1f88-43ac-4593-8ba6-a8410f49c8ce | Changed return type of the function
greatCircleDistance
to
Float32
because now the result of calculation is
Float32
.
#7993
(
alexey-milovidov
)
Now it's expected that query parameters are represented in "escaped" format. For example, to pass string
a<tab>b
you have to write
a\tb
or
a\<tab>b
and respectively,
a%5Ctb
or
a%5C%09b
in URL. This is needed to add the possibility to pass NULL as
\N
. This fixes
#7488
.
#8517
(
alexey-milovidov
)
Enable
use_minimalistic_part_header_in_zookeeper
setting for
ReplicatedMergeTree
by default. This will significantly reduce amount of data stored in ZooKeeper. This setting is supported since version 19.1 and we already use it in production in multiple services without any issues for more than half a year. Disable this setting if you have a chance to downgrade to versions older than 19.1.
#6850
(
alexey-milovidov
)
Data skipping indices are production ready and enabled by default. The settings
allow_experimental_data_skipping_indices
,
allow_experimental_cross_to_join_conversion
and
allow_experimental_multiple_joins_emulation
are now obsolete and do nothing.
#7974
(
alexey-milovidov
)
Add new
ANY JOIN
logic for
StorageJoin
consistent with
JOIN
operation. To upgrade without changes in behaviour you need add
SETTINGS any_join_distinct_right_table_keys = 1
to Engine Join tables metadata or recreate these tables after upgrade.
#8400
(
Artem Zuikov
)
Require server to be restarted to apply the changes in logging configuration. This is a temporary workaround to avoid the bug where the server logs to a deleted log file (see
#8696
).
#8707
(
Alexander Kuzmenkov
)
New Feature {#new-feature-13}
Added information about part paths to
system.merges
.
#8043
(
Vladimir Chebotarev
)
Add ability to execute
SYSTEM RELOAD DICTIONARY
query in
ON CLUSTER
mode.
#8288
(
Guillaume Tassery
)
Add ability to execute
CREATE DICTIONARY
queries in
ON CLUSTER
mode.
#8163
(
alesapin
)
Now user's profile in
users.xml
can inherit multiple profiles.
#8343
(
Mikhail f. Shiryaev
)
Added
system.stack_trace
table that allows to look at stack traces of all server threads. This is useful for developers to introspect server state. This fixes
#7576
.
#8344
(
alexey-milovidov
)
Add
DateTime64
datatype with configurable sub-second precision.
#7170
(
Vasily Nemkov
)
Add table function
clusterAllReplicas
which allows to query all the nodes in the cluster.
#8493
(
kiran sunkari
)
Add aggregate function
categoricalInformationValue
which calculates the information value of a discrete feature.
#8117
(
hcz
)
Speed up parsing of data files in
CSV
,
TSV
and
JSONEachRow
format by doing it in parallel.
#7780
(
Alexander Kuzmenkov
)
Add function
bankerRound
which performs banker's rounding.
#8112
(
hcz
) | {"source_file": "2020.md"} | [
0.041849251836538315,
0.03692929819226265,
-0.05451275780797005,
0.005799035541713238,
-0.025444017723202705,
-0.08304443955421448,
0.00006580487388418987,
0.055129941552877426,
-0.05572952702641487,
0.049498554319143295,
0.0017514702631160617,
-0.13313689827919006,
0.05311119556427002,
0.... |
93350bb3-5dea-44b3-8860-02477819cb5f | Add function
bankerRound
which performs banker's rounding.
#8112
(
hcz
)
Support more languages in embedded dictionary for region names: 'ru', 'en', 'ua', 'uk', 'by', 'kz', 'tr', 'de', 'uz', 'lv', 'lt', 'et', 'pt', 'he', 'vi'.
#8189
(
alexey-milovidov
)
Improvements in consistency of
ANY JOIN
logic. Now
t1 ANY LEFT JOIN t2
equals
t2 ANY RIGHT JOIN t1
.
#7665
(
Artem Zuikov
)
Add setting
any_join_distinct_right_table_keys
which enables old behaviour for
ANY INNER JOIN
.
#7665
(
Artem Zuikov
)
Add new
SEMI
and
ANTI JOIN
. Old
ANY INNER JOIN
behaviour now available as
SEMI LEFT JOIN
.
#7665
(
Artem Zuikov
)
Added
Distributed
format for
File
engine and
file
table function which allows to read from
.bin
files generated by asynchronous inserts into
Distributed
table.
#8535
(
Nikolai Kochetov
)
Add optional reset column argument for
runningAccumulate
which allows to reset aggregation results for each new key value.
#8326
(
Sergey Kononenko
)
Add ability to use ClickHouse as Prometheus endpoint.
#7900
(
vdimir
)
Add section
<remote_url_allow_hosts>
in
config.xml
which restricts allowed hosts for remote table engines and table functions
URL
,
S3
,
HDFS
.
#7154
(
Mikhail Korotov
)
Added function
greatCircleAngle
which calculates the distance on a sphere in degrees.
#8105
(
alexey-milovidov
)
Changed Earth radius to be consistent with H3 library.
#8105
(
alexey-milovidov
)
Added
JSONCompactEachRow
and
JSONCompactEachRowWithNamesAndTypes
formats for input and output.
#7841
(
Mikhail Korotov
)
Added feature for file-related table engines and table functions (
File
,
S3
,
URL
,
HDFS
) which allows to read and write
gzip
files based on additional engine parameter or file extension.
#7840
(
Andrey Bodrov
)
Added the
randomASCII(length)
function, generating a string with a random set of
ASCII
printable characters.
#8401
(
BayoNet
)
Added function
JSONExtractArrayRaw
which returns an array on unparsed json array elements from
JSON
string.
#8081
(
Oleg Matrokhin
)
Add
arrayZip
function which allows to combine multiple arrays of equal lengths into one array of tuples.
#8149
(
Winter Zhang
)
Add ability to move data between disks according to configured
TTL
-expressions for
*MergeTree
table engines family.
#8140
(
Vladimir Chebotarev
)
Added new aggregate function
avgWeighted
which allows to calculate weighted average.
#7898
(
Andrey Bodrov
)
Now parallel parsing is enabled by default for
TSV
,
TSKV
,
CSV
and
JSONEachRow
formats.
#7894
(
Nikita Mikhaylov
)
Add several geo functions from
H3
library:
h3GetResolution
,
h3EdgeAngle
,
h3EdgeLength
,
h3IsValid
and
h3kRing
.
#8034
(
Konstantin Malanchev
)
Added support for brotli (
br
) compression in file-related storages and table functions. This fixes
#8156
.
#8526
(
alexey-milovidov
) | {"source_file": "2020.md"} | [
-0.022464139387011528,
0.027071701362729073,
-0.11072315275669098,
0.005983521696180105,
-0.07662558555603027,
-0.05248003825545311,
0.02380131371319294,
0.046298373490571976,
-0.04413263872265816,
0.019153716042637825,
0.06212299317121506,
-0.0008596382103860378,
0.05542469397187233,
-0.0... |
ed0385ed-0b78-4e07-87ac-50c90cc9aec8 | Added support for brotli (
br
) compression in file-related storages and table functions. This fixes
#8156
.
#8526
(
alexey-milovidov
)
Add
groupBit*
functions for the
SimpleAggregationFunction
type.
#8485
(
Guillaume Tassery
)
Bug Fix {#bug-fix-60}
Fix rename of tables with
Distributed
engine. Fixes issue
#7868
.
#8306
(
tavplubix
)
Now dictionaries support
EXPRESSION
for attributes in arbitrary string in non-ClickHouse SQL dialect.
#8098
(
alesapin
)
Fix broken
INSERT SELECT FROM mysql(...)
query. This fixes
#8070
and
#7960
.
#8234
(
tavplubix
)
Fix error "Mismatch column sizes" when inserting default
Tuple
from
JSONEachRow
. This fixes
#5653
.
#8606
(
tavplubix
)
Now an exception will be thrown in case of using
WITH TIES
alongside
LIMIT BY
. Also add ability to use
TOP
with
LIMIT BY
. This fixes
#7472
.
#7637
(
Nikita Mikhaylov
)
Fix unintendent dependency from fresh glibc version in
clickhouse-odbc-bridge
binary.
#8046
(
Amos Bird
)
Fix bug in check function of
*MergeTree
engines family. Now it does not fail in case when we have equal amount of rows in last granule and last mark (non-final).
#8047
(
alesapin
)
Fix insert into
Enum*
columns after
ALTER
query, when underlying numeric type is equal to table specified type. This fixes
#7836
.
#7908
(
Anton Popov
)
Allowed non-constant negative "size" argument for function
substring
. It was not allowed by mistake. This fixes
#4832
.
#7703
(
alexey-milovidov
)
Fix parsing bug when wrong number of arguments passed to
(O|J)DBC
table engine.
#7709
(
alesapin
)
Using command name of the running clickhouse process when sending logs to syslog. In previous versions, empty string was used instead of command name.
#8460
(
Michael Nacharov
)
Fix check of allowed hosts for
localhost
. This PR fixes the solution provided in
#8241
.
#8342
(
Vitaly Baranov
)
Fix rare crash in
argMin
and
argMax
functions for long string arguments, when result is used in
runningAccumulate
function. This fixes
#8325
#8341
(
dinosaur
)
Fix memory overcommit for tables with
Buffer
engine.
#8345
(
Azat Khuzhin
)
Fixed potential bug in functions that can take
NULL
as one of the arguments and return non-NULL.
#8196
(
alexey-milovidov
)
Better metrics calculations in thread pool for background processes for
MergeTree
table engines.
#8194
(
Vladimir Chebotarev
)
Fix function
IN
inside
WHERE
statement when row-level table filter is present. Fixes
#6687
#8357
(
Ivan
)
Now an exception is thrown if the integral value is not parsed completely for settings values.
#7678
(
Mikhail Korotov
)
Fix exception when aggregate function is used in query to distributed table with more than two local shards.
#8164
(
小路
)
Now bloom filter can handle zero length arrays and does not perform redundant calculations.
#8242
(
achimbab
) | {"source_file": "2020.md"} | [
-0.07713796198368073,
-0.014984069392085075,
0.005757519043982029,
-0.025622740387916565,
-0.054413486272096634,
-0.04956391826272011,
-0.015547817572951317,
0.0034926605876535177,
-0.09217383712530136,
-0.012523915618658066,
0.054327476769685745,
-0.010053977370262146,
0.06699230521917343,
... |
c3e5564d-dbb7-4f4a-b104-a3be2499ea53 | Now bloom filter can handle zero length arrays and does not perform redundant calculations.
#8242
(
achimbab
)
Fixed checking if a client host is allowed by matching the client host to
host_regexp
specified in
users.xml
.
#8241
(
Vitaly Baranov
)
Relax ambiguous column check that leads to false positives in multiple
JOIN ON
section.
#8385
(
Artem Zuikov
)
Fixed possible server crash (
std::terminate
) when the server cannot send or write data in
JSON
or
XML
format with values of
String
data type (that require
UTF-8
validation) or when compressing result data with Brotli algorithm or in some other rare cases. This fixes
#7603
#8384
(
alexey-milovidov
)
Fix race condition in
StorageDistributedDirectoryMonitor
found by CI. This fixes
#8364
.
#8383
(
Nikolai Kochetov
)
Now background merges in
*MergeTree
table engines family preserve storage policy volume order more accurately.
#8549
(
Vladimir Chebotarev
)
Now table engine
Kafka
works properly with
Native
format. This fixes
#6731
#7337
#8003
.
#8016
(
filimonov
)
Fixed formats with headers (like
CSVWithNames
) which were throwing exception about EOF for table engine
Kafka
.
#8016
(
filimonov
)
Fixed a bug with making set from subquery in right part of
IN
section. This fixes
#5767
and
#2542
.
#7755
(
Nikita Mikhaylov
)
Fix possible crash while reading from storage
File
.
#7756
(
Nikolai Kochetov
)
Fixed reading of the files in
Parquet
format containing columns of type
list
.
#8334
(
maxulan
)
Fix error
Not found column
for distributed queries with
PREWHERE
condition dependent on sampling key if
max_parallel_replicas > 1
.
#7913
(
Nikolai Kochetov
)
Fix error
Not found column
if query used
PREWHERE
dependent on table's alias and the result set was empty because of primary key condition.
#7911
(
Nikolai Kochetov
)
Fixed return type for functions
rand
and
randConstant
in case of
Nullable
argument. Now functions always return
UInt32
and never
Nullable(UInt32)
.
#8204
(
Nikolai Kochetov
)
Disabled predicate push-down for
WITH FILL
expression. This fixes
#7784
.
#7789
(
Winter Zhang
)
Fixed incorrect
count()
result for
SummingMergeTree
when
FINAL
section is used.
#3280
#7786
(
Nikita Mikhaylov
)
Fix possible incorrect result for constant functions from remote servers. It happened for queries with functions like
version()
,
uptime()
, etc. which returns different constant values for different servers. This fixes
#7666
.
#7689
(
Nikolai Kochetov
)
Fix complicated bug in push-down predicate optimization which leads to wrong results. This fixes a lot of issues on push-down predicate optimization.
#8503
(
Winter Zhang
)
Fix crash in
CREATE TABLE .. AS dictionary
query.
#8508
(
Azat Khuzhin
)
Several improvements ClickHouse grammar in
.g4
file.
#8294
(
taiyang-li
) | {"source_file": "2020.md"} | [
-0.03226357325911522,
0.07295440137386322,
-0.025453252717852592,
-0.015452224761247635,
-0.07469386607408524,
-0.04801731929183006,
-0.03244715556502342,
0.0005168738425709307,
0.04151318967342377,
0.009673446416854858,
0.0031684262212365866,
0.005144281778484583,
0.041322167962789536,
-0... |
0f304882-2a0d-4bd4-bcd6-d03771fc53c8 | Fix crash in
CREATE TABLE .. AS dictionary
query.
#8508
(
Azat Khuzhin
)
Several improvements ClickHouse grammar in
.g4
file.
#8294
(
taiyang-li
)
Fix bug that leads to crashes in
JOIN
s with tables with engine
Join
. This fixes
#7556
#8254
#7915
#8100
.
#8298
(
Artem Zuikov
)
Fix redundant dictionaries reload on
CREATE DATABASE
.
#7916
(
Azat Khuzhin
)
Limit maximum number of streams for read from
StorageFile
and
StorageHDFS
. Fixes
#7650
.
#7981
(
alesapin
)
Fix bug in
ALTER ... MODIFY ... CODEC
query, when user specify both default expression and codec. Fixes
8593
.
#8614
(
alesapin
)
Fix error in background merge of columns with
SimpleAggregateFunction(LowCardinality)
type.
#8613
(
Nikolai Kochetov
)
Fixed type check in function
toDateTime64
.
#8375
(
Vasily Nemkov
)
Now server do not crash on
LEFT
or
FULL JOIN
with and Join engine and unsupported
join_use_nulls
settings.
#8479
(
Artem Zuikov
)
Now
DROP DICTIONARY IF EXISTS db.dict
query does not throw exception if
db
does not exist.
#8185
(
Vitaly Baranov
)
Fix possible crashes in table functions (
file
,
mysql
,
remote
) caused by usage of reference to removed
IStorage
object. Fix incorrect parsing of columns specified at insertion into table function.
#7762
(
tavplubix
)
Ensure network be up before starting
clickhouse-server
. This fixes
#7507
.
#8570
(
Zhichang Yu
)
Fix timeouts handling for secure connections, so queries does not hang indefenitely. This fixes
#8126
.
#8128
(
alexey-milovidov
)
Fix
clickhouse-copier
's redundant contention between concurrent workers.
#7816
(
Ding Xiang Fei
)
Now mutations does not skip attached parts, even if their mutation version were larger than current mutation version.
#7812
(
Zhichang Yu
)
#8250
(
alesapin
)
Ignore redundant copies of
*MergeTree
data parts after move to another disk and server restart.
#7810
(
Vladimir Chebotarev
)
Fix crash in
FULL JOIN
with
LowCardinality
in
JOIN
key.
#8252
(
Artem Zuikov
)
Forbidden to use column name more than once in insert query like
INSERT INTO tbl (x, y, x)
. This fixes
#5465
,
#7681
.
#7685
(
alesapin
)
Added fallback for detection the number of physical CPU cores for unknown CPUs (using the number of logical CPU cores). This fixes
#5239
.
#7726
(
alexey-milovidov
)
Fix
There's no column
error for materialized and alias columns.
#8210
(
Artem Zuikov
)
Fixed sever crash when
EXISTS
query was used without
TABLE
or
DICTIONARY
qualifier. Just like
EXISTS t
. This fixes
#8172
. This bug was introduced in version 19.17.
#8213
(
alexey-milovidov
)
Fix rare bug with error
"Sizes of columns does not match"
that might appear when using
SimpleAggregateFunction
column.
#7790
(
Boris Granveaud
)
Fix bug where user with empty
allow_databases
got access to all databases (and same for
allow_dictionaries
).
#7793
(
DeifyTheGod
) | {"source_file": "2020.md"} | [
0.010096069425344467,
-0.036094024777412415,
-0.05476091057062149,
0.016867762431502342,
-0.023899273946881294,
-0.0415552482008934,
0.009498598985373974,
0.06630615144968033,
-0.061720676720142365,
0.05103325843811035,
0.04625283554196358,
0.0016157086938619614,
0.004305808339267969,
-0.0... |
b3dfda49-3f82-4d42-9206-249096e12462 | Fix bug where user with empty
allow_databases
got access to all databases (and same for
allow_dictionaries
).
#7793
(
DeifyTheGod
)
Fix client crash when server already disconnected from client.
#8071
(
Azat Khuzhin
)
Fix
ORDER BY
behaviour in case of sorting by primary key prefix and non primary key suffix.
#7759
(
Anton Popov
)
Check if qualified column present in the table. This fixes
#6836
.
#7758
(
Artem Zuikov
)
Fixed behavior with
ALTER MOVE
ran immediately after merge finish moves superpart of specified. Fixes
#8103
.
#8104
(
Vladimir Chebotarev
)
Fix possible server crash while using
UNION
with different number of columns. Fixes
#7279
.
#7929
(
Nikolai Kochetov
)
Fix size of result substring for function
substr
with negative size.
#8589
(
Nikolai Kochetov
)
Now server does not execute part mutation in
MergeTree
if there are not enough free threads in background pool.
#8588
(
tavplubix
)
Fix a minor typo on formatting
UNION ALL
AST.
#7999
(
litao91
)
Fixed incorrect bloom filter results for negative numbers. This fixes
#8317
.
#8566
(
Winter Zhang
)
Fixed potential buffer overflow in decompress. Malicious user can pass fabricated compressed data that will cause read after buffer. This issue was found by Eldar Zaitov from Yandex information security team.
#8404
(
alexey-milovidov
)
Fix incorrect result because of integers overflow in
arrayIntersect
.
#7777
(
Nikolai Kochetov
)
Now
OPTIMIZE TABLE
query will not wait for offline replicas to perform the operation.
#8314
(
javi santana
)
Fixed
ALTER TTL
parser for
Replicated*MergeTree
tables.
#8318
(
Vladimir Chebotarev
)
Fix communication between server and client, so server read temporary tables info after query failure.
#8084
(
Azat Khuzhin
)
Fix
bitmapAnd
function error when intersecting an aggregated bitmap and a scalar bitmap.
#8082
(
Yue Huang
)
Refine the definition of
ZXid
according to the ZooKeeper Programmer's Guide which fixes bug in
clickhouse-cluster-copier
.
#8088
(
Ding Xiang Fei
)
odbc
table function now respects
external_table_functions_use_nulls
setting.
#7506
(
Vasily Nemkov
)
Fixed bug that lead to a rare data race.
#8143
(
Alexander Kazakov
)
Now
SYSTEM RELOAD DICTIONARY
reloads a dictionary completely, ignoring
update_field
. This fixes
#7440
.
#8037
(
Vitaly Baranov
)
Add ability to check if dictionary exists in create query.
#8032
(
alesapin
)
Fix
Float*
parsing in
Values
format. This fixes
#7817
.
#7870
(
tavplubix
)
Fix crash when we cannot reserve space in some background operations of
*MergeTree
table engines family.
#7873
(
Vladimir Chebotarev
)
Fix crash of merge operation when table contains
SimpleAggregateFunction(LowCardinality)
column. This fixes
#8515
.
#8522
(
Azat Khuzhin
) | {"source_file": "2020.md"} | [
0.016296617686748505,
-0.02179134078323841,
0.026245685294270515,
-0.00552626047283411,
-0.05306486412882805,
-0.06230292096734047,
-0.04339376464486122,
0.03724211826920509,
-0.04247910529375076,
0.04874195531010628,
0.033103667199611664,
0.027004316449165344,
0.007746386807411909,
-0.027... |
299f3506-0a9a-4753-a98c-4a6192aa8daa | Fix crash of merge operation when table contains
SimpleAggregateFunction(LowCardinality)
column. This fixes
#8515
.
#8522
(
Azat Khuzhin
)
Restore support of all ICU locales and add the ability to apply collations for constant expressions. Also add language name to
system.collations
table.
#8051
(
alesapin
)
Fix bug when external dictionaries with zero minimal lifetime (
LIFETIME(MIN 0 MAX N)
,
LIFETIME(N)
) don't update in background.
#7983
(
alesapin
)
Fix crash when external dictionary with ClickHouse source has subquery in query.
#8351
(
Nikolai Kochetov
)
Fix incorrect parsing of file extension in table with engine
URL
. This fixes
#8157
.
#8419
(
Andrey Bodrov
)
Fix
CHECK TABLE
query for
*MergeTree
tables without key. Fixes
#7543
.
#7979
(
alesapin
)
Fixed conversion of
Float64
to MySQL type.
#8079
(
Yuriy Baranov
)
Now if table was not completely dropped because of server crash, server will try to restore and load it.
#8176
(
tavplubix
)
Fixed crash in table function
file
while inserting into file that does not exist. Now in this case file would be created and then insert would be processed.
#8177
(
Olga Khvostikova
)
Fix rare deadlock which can happen when
trace_log
is in enabled.
#7838
(
filimonov
)
Add ability to work with different types besides
Date
in
RangeHashed
external dictionary created from DDL query. Fixes
7899
.
#8275
(
alesapin
)
Fixes crash when
now64()
is called with result of another function.
#8270
(
Vasily Nemkov
)
Fixed bug with detecting client IP for connections through mysql wire protocol.
#7743
(
Dmitry Muzyka
)
Fix empty array handling in
arraySplit
function. This fixes
#7708
.
#7747
(
hcz
)
Fixed the issue when
pid-file
of another running
clickhouse-server
may be deleted.
#8487
(
Weiqing Xu
)
Fix dictionary reload if it has
invalidate_query
, which stopped updates and some exception on previous update tries.
#8029
(
alesapin
)
Fixed error in function
arrayReduce
that may lead to "double free" and error in aggregate function combinator
Resample
that may lead to memory leak. Added aggregate function
aggThrow
. This function can be used for testing purposes.
#8446
(
alexey-milovidov
)
Improvement {#improvement-22}
Improved logging when working with
S3
table engine.
#8251
(
Grigory Pervakov
)
Printed help message when no arguments are passed when calling
clickhouse-local
. This fixes
#5335
.
#8230
(
Andrey Nagorny
)
Add setting
mutations_sync
which allows to wait
ALTER UPDATE/DELETE
queries synchronously.
#8237
(
alesapin
)
Allow to set up relative
user_files_path
in
config.xml
(in the way similar to
format_schema_path
).
#7632
(
hcz
)
Add exception for illegal types for conversion functions with
-OrZero
postfix.
#7880
(
Andrey Konyaev
)
Simplify format of the header of data sending to a shard in a distributed query.
#8044
(
Vitaly Baranov
) | {"source_file": "2020.md"} | [
0.016828421503305435,
-0.05271070823073387,
-0.010675149969756603,
-0.00812535546720028,
-0.02854836918413639,
-0.06977371126413345,
-0.0025449360255151987,
0.057782065123319626,
-0.03279159963130951,
0.0224414374679327,
0.06077761575579643,
0.012101062573492527,
0.009351604618132114,
-0.0... |
185dcff8-2a97-47c6-80ec-4c02b52ffc72 | Simplify format of the header of data sending to a shard in a distributed query.
#8044
(
Vitaly Baranov
)
Live View
table engine refactoring.
#8519
(
vzakaznikov
)
Add additional checks for external dictionaries created from DDL-queries.
#8127
(
alesapin
)
Fix error
Column ... already exists
while using
FINAL
and
SAMPLE
together, e.g.
select count() from table final sample 1/2
. Fixes
#5186
.
#7907
(
Nikolai Kochetov
)
Now table the first argument of
joinGet
function can be table identifier.
#7707
(
Amos Bird
)
Allow using
MaterializedView
with subqueries above
Kafka
tables.
#8197
(
filimonov
)
Now background moves between disks run it the seprate thread pool.
#7670
(
Vladimir Chebotarev
)
SYSTEM RELOAD DICTIONARY
now executes synchronously.
#8240
(
Vitaly Baranov
)
Stack traces now display physical addresses (offsets in object file) instead of virtual memory addresses (where the object file was loaded). That allows the use of
addr2line
when binary is position independent and ASLR is active. This fixes
#8360
.
#8387
(
alexey-milovidov
)
Support new syntax for row-level security filters:
<table name='table_name'>...</table>
. Fixes
#5779
.
#8381
(
Ivan
)
Now
cityHash
function can work with
Decimal
and
UUID
types. Fixes
#5184
.
#7693
(
Mikhail Korotov
)
Removed fixed index granularity (it was 1024) from system logs because it's obsolete after implementation of adaptive granularity.
#7698
(
alexey-milovidov
)
Enabled MySQL compatibility server when ClickHouse is compiled without SSL.
#7852
(
Yuriy Baranov
)
Now server checksums distributed batches, which gives more verbose errors in case of corrupted data in batch.
#7914
(
Azat Khuzhin
)
Support
DROP DATABASE
,
DETACH TABLE
,
DROP TABLE
and
ATTACH TABLE
for
MySQL
database engine.
#8202
(
Winter Zhang
)
Add authentication in S3 table function and table engine.
#7623
(
Vladimir Chebotarev
)
Added check for extra parts of
MergeTree
at different disks, in order to not allow to miss data parts at undefined disks.
#8118
(
Vladimir Chebotarev
)
Enable SSL support for Mac client and server.
#8297
(
Ivan
)
Now ClickHouse can work as MySQL federated server (see https://dev.mysql.com/doc/refman/5.7/en/federated-create-server.html).
#7717
(
Maxim Fedotov
)
clickhouse-client
now only enable
bracketed-paste
when multiquery is on and multiline is off. This fixes
#7757
.
#7761
(
Amos Bird
)
Support
Array(Decimal)
in
if
function.
#7721
(
Artem Zuikov
)
Support Decimals in
arrayDifference
,
arrayCumSum
and
arrayCumSumNegative
functions.
#7724
(
Artem Zuikov
)
Added
lifetime
column to
system.dictionaries
table.
#6820
#7727
(
kekekekule
)
Improved check for existing parts on different disks for
*MergeTree
table engines. Addresses
#7660
.
#8440
(
Vladimir Chebotarev
) | {"source_file": "2020.md"} | [
-0.05673724040389061,
-0.0409415178000927,
-0.06270448863506317,
-0.003027713857591152,
-0.05610928684473038,
-0.055293262004852295,
0.005552394315600395,
0.004692332353442907,
0.03789021447300911,
0.016395865008234978,
-0.006031206343322992,
-0.06095438823103905,
0.05658283457159996,
-0.1... |
4cd0a1e5-fb8b-44a7-b43f-776e61fd6837 | Improved check for existing parts on different disks for
*MergeTree
table engines. Addresses
#7660
.
#8440
(
Vladimir Chebotarev
)
Integration with
AWS SDK
for
S3
interactions which allows to use all S3 features out of the box.
#8011
(
Pavel Kovalenko
)
Added support for subqueries in
Live View
tables.
#7792
(
vzakaznikov
)
Check for using
Date
or
DateTime
column from
TTL
expressions was removed.
#7920
(
Vladimir Chebotarev
)
Information about disk was added to
system.detached_parts
table.
#7833
(
Vladimir Chebotarev
)
Now settings
max_(table|partition)_size_to_drop
can be changed without a restart.
#7779
(
Grigory Pervakov
)
Slightly better usability of error messages. Ask user not to remove the lines below
Stack trace:
.
#7897
(
alexey-milovidov
)
Better reading messages from
Kafka
engine in various formats after
#7935
.
#8035
(
Ivan
)
Better compatibility with MySQL clients which don't support
sha2_password
auth plugin.
#8036
(
Yuriy Baranov
)
Support more column types in MySQL compatibility server.
#7975
(
Yuriy Baranov
)
Implement
ORDER BY
optimization for
Merge
,
Buffer
and
Materilized View
storages with underlying
MergeTree
tables.
#8130
(
Anton Popov
)
Now we always use POSIX implementation of
getrandom
to have better compatibility with old kernels (< 3.17).
#7940
(
Amos Bird
)
Better check for valid destination in a move TTL rule.
#8410
(
Vladimir Chebotarev
)
Better checks for broken insert batches for
Distributed
table engine.
#7933
(
Azat Khuzhin
)
Add column with array of parts name which mutations must process in future to
system.mutations
table.
#8179
(
alesapin
)
Parallel merge sort optimization for processors.
#8552
(
Nikolai Kochetov
)
The settings
mark_cache_min_lifetime
is now obsolete and does nothing. In previous versions, mark cache can grow in memory larger than
mark_cache_size
to accomodate data within
mark_cache_min_lifetime
seconds. That was leading to confusion and higher memory usage than expected, that is especially bad on memory constrained systems. If you will see performance degradation after installing this release, you should increase the
mark_cache_size
.
#8484
(
alexey-milovidov
)
Preparation to use
tid
everywhere. This is needed for
#7477
.
#8276
(
alexey-milovidov
)
Performance Improvement {#performance-improvement-17}
Performance optimizations in processors pipeline.
#7988
(
Nikolai Kochetov
)
Non-blocking updates of expired keys in cache dictionaries (with permission to read old ones).
#8303
(
Nikita Mikhaylov
)
Compile ClickHouse without
-fno-omit-frame-pointer
globally to spare one more register.
#8097
(
Amos Bird
)
Speedup
greatCircleDistance
function and add performance tests for it.
#7307
(
Olga Khvostikova
)
Improved performance of function
roundDown
.
#8465
(
alexey-milovidov
) | {"source_file": "2020.md"} | [
-0.035101089626550674,
-0.03748016431927681,
-0.031228097155690193,
-0.026709649711847305,
0.06584447622299194,
-0.0789341852068901,
-0.03055824153125286,
0.07007209211587906,
0.010602915659546852,
0.026838695630431175,
0.014661665074527264,
0.009768180549144745,
0.030992796644568443,
-0.0... |
771c9035-0c51-4583-a4d6-0c97da940ddc | Speedup
greatCircleDistance
function and add performance tests for it.
#7307
(
Olga Khvostikova
)
Improved performance of function
roundDown
.
#8465
(
alexey-milovidov
)
Improved performance of
max
,
min
,
argMin
,
argMax
for
DateTime64
data type.
#8199
(
Vasily Nemkov
)
Improved performance of sorting without a limit or with big limit and external sorting.
#8545
(
alexey-milovidov
)
Improved performance of formatting floating point numbers up to 6 times.
#8542
(
alexey-milovidov
)
Improved performance of
modulo
function.
#7750
(
Amos Bird
)
Optimized
ORDER BY
and merging with single column key.
#8335
(
alexey-milovidov
)
Better implementation for
arrayReduce
,
-Array
and
-State
combinators.
#7710
(
Amos Bird
)
Now
PREWHERE
should be optimized to be at least as efficient as
WHERE
.
#7769
(
Amos Bird
)
Improve the way
round
and
roundBankers
handling negative numbers.
#8229
(
hcz
)
Improved decoding performance of
DoubleDelta
and
Gorilla
codecs by roughly 30-40%. This fixes
#7082
.
#8019
(
Vasily Nemkov
)
Improved performance of
base64
related functions.
#8444
(
alexey-milovidov
)
Added a function
geoDistance
. It is similar to
greatCircleDistance
but uses approximation to WGS-84 ellipsoid model. The performance of both functions are near the same.
#8086
(
alexey-milovidov
)
Faster
min
and
max
aggregation functions for
Decimal
data type.
#8144
(
Artem Zuikov
)
Vectorize processing
arrayReduce
.
#7608
(
Amos Bird
)
if
chains are now optimized as
multiIf
.
#8355
(
kamalov-ruslan
)
Fix performance regression of
Kafka
table engine introduced in 19.15. This fixes
#7261
.
#7935
(
filimonov
)
Removed "pie" code generation that
gcc
from Debian packages occasionally brings by default.
#8483
(
alexey-milovidov
)
Parallel parsing data formats
#6553
(
Nikita Mikhaylov
)
Enable optimized parser of
Values
with expressions by default (
input_format_values_deduce_templates_of_expressions=1
).
#8231
(
tavplubix
)
Build/Testing/Packaging Improvement {#buildtestingpackaging-improvement-25}
Build fixes for
ARM
and in minimal mode.
#8304
(
proller
)
Add coverage file flush for
clickhouse-server
when std::atexit is not called. Also slightly improved logging in stateless tests with coverage.
#8267
(
alesapin
)
Update LLVM library in contrib. Avoid using LLVM from OS packages.
#8258
(
alexey-milovidov
)
Make bundled
curl
build fully quiet.
#8232
#8203
(
Pavel Kovalenko
)
Fix some
MemorySanitizer
warnings.
#8235
(
Alexander Kuzmenkov
)
Use
add_warning
and
no_warning
macros in
CMakeLists.txt
.
#8604
(
Ivan
)
Add support of Minio S3 Compatible object (https://min.io/) for better integration tests.
#7863
#7875
(
Pavel Kovalenko
)
Imported
libc
headers to contrib. It allows to make builds more consistent across various systems (only for
x86_64-linux-gnu
).
#5773
(
alexey-milovidov
) | {"source_file": "2020.md"} | [
-0.023787185549736023,
0.05828043818473816,
-0.10757439583539963,
-0.06627942621707916,
-0.04500620439648628,
-0.08435157686471939,
-0.001500587910413742,
0.020458556711673737,
-0.010865483433008194,
0.0029529514722526073,
-0.005824650637805462,
0.05045167729258537,
-0.0370723120868206,
-0... |
91670712-905b-402a-8389-3ae1117b049c | Imported
libc
headers to contrib. It allows to make builds more consistent across various systems (only for
x86_64-linux-gnu
).
#5773
(
alexey-milovidov
)
Remove
-fPIC
from some libraries.
#8464
(
alexey-milovidov
)
Clean
CMakeLists.txt
for curl. See https://github.com/ClickHouse/ClickHouse/pull/8011#issuecomment-569478910
#8459
(
alexey-milovidov
)
Silent warnings in
CapNProto
library.
#8220
(
alexey-milovidov
)
Add performance tests for short string optimized hash tables.
#7679
(
Amos Bird
)
Now ClickHouse will build on
AArch64
even if
MADV_FREE
is not available. This fixes
#8027
.
#8243
(
Amos Bird
)
Update
zlib-ng
to fix memory sanitizer problems.
#7182
#8206
(
Alexander Kuzmenkov
)
Enable internal MySQL library on non-Linux system, because usage of OS packages is very fragile and usually does not work at all. This fixes
#5765
.
#8426
(
alexey-milovidov
)
Fixed build on some systems after enabling
libc++
. This supersedes
#8374
.
#8380
(
alexey-milovidov
)
Make
Field
methods more type-safe to find more errors.
#7386
#8209
(
Alexander Kuzmenkov
)
Added missing files to the
libc-headers
submodule.
#8507
(
alexey-milovidov
)
Fix wrong
JSON
quoting in performance test output.
#8497
(
Nikolai Kochetov
)
Now stack trace is displayed for
std::exception
and
Poco::Exception
. In previous versions it was available only for
DB::Exception
. This improves diagnostics.
#8501
(
alexey-milovidov
)
Porting
clock_gettime
and
clock_nanosleep
for fresh glibc versions.
#8054
(
Amos Bird
)
Enable
part_log
in example config for developers.
#8609
(
alexey-milovidov
)
Fix async nature of reload in
01036_no_superfluous_dict_reload_on_create_database*
.
#8111
(
Azat Khuzhin
)
Fixed codec performance tests.
#8615
(
Vasily Nemkov
)
Add install scripts for
.tgz
build and documentation for them.
#8612
#8591
(
alesapin
)
Removed old
ZSTD
test (it was created in year 2016 to reproduce the bug that pre 1.0 version of ZSTD has had). This fixes
#8618
.
#8619
(
alexey-milovidov
)
Fixed build on Mac OS Catalina.
#8600
(
meo
)
Increased number of rows in codec performance tests to make results noticeable.
#8574
(
Vasily Nemkov
)
In debug builds, treat
LOGICAL_ERROR
exceptions as assertion failures, so that they are easier to notice.
#8475
(
Alexander Kuzmenkov
)
Make formats-related performance test more deterministic.
#8477
(
alexey-milovidov
)
Update
lz4
to fix a MemorySanitizer failure.
#8181
(
Alexander Kuzmenkov
)
Suppress a known MemorySanitizer false positive in exception handling.
#8182
(
Alexander Kuzmenkov
)
Update
gcc
and
g++
to version 9 in
build/docker/build.sh
#7766
(
TLightSky
)
Add performance test case to test that
PREWHERE
is worse than
WHERE
.
#7768
(
Amos Bird
)
Progress towards fixing one flacky test.
#8621
(
alexey-milovidov
) | {"source_file": "2020.md"} | [
0.004606219939887524,
0.01111508533358574,
-0.06652671843767166,
-0.034842874854803085,
0.02032453380525112,
-0.103023961186409,
-0.032914482057094574,
0.042150646448135376,
-0.029308991506695747,
0.012489737011492252,
-0.03255481645464897,
-0.00043918087612837553,
-0.002272023120895028,
-... |
780aa972-1f62-446b-8f29-404c3c537626 | Add performance test case to test that
PREWHERE
is worse than
WHERE
.
#7768
(
Amos Bird
)
Progress towards fixing one flacky test.
#8621
(
alexey-milovidov
)
Avoid MemorySanitizer report for data from
libunwind
.
#8539
(
alexey-milovidov
)
Updated
libc++
to the latest version.
#8324
(
alexey-milovidov
)
Build ICU library from sources. This fixes
#6460
.
#8219
(
alexey-milovidov
)
Switched from
libressl
to
openssl
. ClickHouse should support TLS 1.3 and SNI after this change. This fixes
#8171
.
#8218
(
alexey-milovidov
)
Fixed UBSan report when using
chacha20_poly1305
from SSL (happens on connect to https://yandex.ru/).
#8214
(
alexey-milovidov
)
Fix mode of default password file for
.deb
linux distros.
#8075
(
proller
)
Improved expression for getting
clickhouse-server
PID in
clickhouse-test
.
#8063
(
Alexander Kazakov
)
Updated contrib/googletest to v1.10.0.
#8587
(
Alexander Burmak
)
Fixed ThreadSaninitizer report in
base64
library. Also updated this library to the latest version, but it does not matter. This fixes
#8397
.
#8403
(
alexey-milovidov
)
Fix
00600_replace_running_query
for processors.
#8272
(
Nikolai Kochetov
)
Remove support for
tcmalloc
to make
CMakeLists.txt
simpler.
#8310
(
alexey-milovidov
)
Release gcc builds now use
libc++
instead of
libstdc++
. Recently
libc++
was used only with clang. This will improve consistency of build configurations and portability.
#8311
(
alexey-milovidov
)
Enable ICU library for build with MemorySanitizer.
#8222
(
alexey-milovidov
)
Suppress warnings from
CapNProto
library.
#8224
(
alexey-milovidov
)
Removed special cases of code for
tcmalloc
, because it's no longer supported.
#8225
(
alexey-milovidov
)
In CI coverage task, kill the server gracefully to allow it to save the coverage report. This fixes incomplete coverage reports we've been seeing lately.
#8142
(
alesapin
)
Performance tests for all codecs against
Float64
and
UInt64
values.
#8349
(
Vasily Nemkov
)
termcap
is very much deprecated and lead to various problems (f.g. missing "up" cap and echoing
^J
instead of multi line) . Favor
terminfo
or bundled
ncurses
.
#7737
(
Amos Bird
)
Fix
test_storage_s3
integration test.
#7734
(
Nikolai Kochetov
)
Support
StorageFile(<format>, null)
to insert block into given format file without actually write to disk. This is required for performance tests.
#8455
(
Amos Bird
)
Added argument
--print-time
to functional tests which prints execution time per test.
#8001
(
Nikolai Kochetov
)
Added asserts to
KeyCondition
while evaluating RPN. This will fix warning from gcc-9.
#8279
(
alexey-milovidov
)
Dump cmake options in CI builds.
#8273
(
Alexander Kuzmenkov
)
Don't generate debug info for some fat libraries.
#8271
(
alexey-milovidov
) | {"source_file": "2020.md"} | [
-0.03741404786705971,
0.01208024937659502,
-0.10002242028713226,
0.00628760876134038,
0.0052010188810527325,
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0.03919355198740959,
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0.05224579572677612,
0.0009813258657231927,
0.01040... |
2b9c4860-9d6d-4a7b-97a2-3c00c6bf9ba2 | Dump cmake options in CI builds.
#8273
(
Alexander Kuzmenkov
)
Don't generate debug info for some fat libraries.
#8271
(
alexey-milovidov
)
Make
log_to_console.xml
always log to stderr, regardless of is it interactive or not.
#8395
(
Alexander Kuzmenkov
)
Removed some unused features from
clickhouse-performance-test
tool.
#8555
(
alexey-milovidov
)
Now we will also search for
lld-X
with corresponding
clang-X
version.
#8092
(
alesapin
)
Parquet build improvement.
#8421
(
maxulan
)
More GCC warnings
#8221
(
kreuzerkrieg
)
Package for Arch Linux now allows to run ClickHouse server, and not only client.
#8534
(
Vladimir Chebotarev
)
Fix test with processors. Tiny performance fixes.
#7672
(
Nikolai Kochetov
)
Update contrib/protobuf.
#8256
(
Matwey V. Kornilov
)
In preparation of switching to c++20 as a new year celebration. "May the C++ force be with ClickHouse."
#8447
(
Amos Bird
)
Experimental Feature {#experimental-feature-8}
Added experimental setting
min_bytes_to_use_mmap_io
. It allows to read big files without copying data from kernel to userspace. The setting is disabled by default. Recommended threshold is about 64 MB, because mmap/munmap is slow.
#8520
(
alexey-milovidov
)
Reworked quotas as a part of access control system. Added new table
system.quotas
, new functions
currentQuota
,
currentQuotaKey
, new SQL syntax
CREATE QUOTA
,
ALTER QUOTA
,
DROP QUOTA
,
SHOW QUOTA
.
#7257
(
Vitaly Baranov
)
Allow skipping unknown settings with warnings instead of throwing exceptions.
#7653
(
Vitaly Baranov
)
Reworked row policies as a part of access control system. Added new table
system.row_policies
, new function
currentRowPolicies()
, new SQL syntax
CREATE POLICY
,
ALTER POLICY
,
DROP POLICY
,
SHOW CREATE POLICY
,
SHOW POLICIES
.
#7808
(
Vitaly Baranov
)
Security Fix {#security-fix}
Fixed the possibility of reading directories structure in tables with
File
table engine. This fixes
#8536
.
#8537
(
alexey-milovidov
)
Changelog for 2019
{#changelog-for-2019} | {"source_file": "2020.md"} | [
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-0.058698639273643494,
-0.0... |
be5c06b8-d11f-4363-9f9e-035f9f7e69af | slug: /whats-new/changelog/2024
sidebar_position: 3
sidebar_label: '2024'
title: '2024 Changelog'
description: 'Changelog for 2024'
keywords: ['ClickHouse 2024', 'changelog 2024', 'release notes', 'version history', 'new features']
doc_type: 'changelog'
Table of Contents {#table-of-contents}
ClickHouse release v24.12, 2024-12-19
ClickHouse release v24.11, 2024-11-26
ClickHouse release v24.10, 2024-10-31
ClickHouse release v24.9, 2024-09-26
ClickHouse release v24.8 LTS, 2024-08-20
ClickHouse release v24.7, 2024-07-30
ClickHouse release v24.6, 2024-07-01
ClickHouse release v24.5, 2024-05-30
ClickHouse release v24.4, 2024-04-30
ClickHouse release v24.3 LTS, 2024-03-26
ClickHouse release v24.2, 2024-02-29
ClickHouse release v24.1, 2024-01-30
Changelog for 2023
ClickHouse release 24.12, 2024-12-19 {#a-id2412a-clickhouse-release-2412-2024-12-19}
Backward Incompatible Change {#backward-incompatible-change}
Functions
greatest
and
least
now ignore NULL input values, whereas they previously returned NULL if one of the arguments was NULL. For example,
SELECT greatest(1, 2, NULL)
now returns 2. This makes the behavior compatible with PostgreSQL, but at the same time it breaks the compatibility with MySQL which returns NULL. To retain the previous behavior, set setting
least_greatest_legacy_null_behavior
(default:
false
) to
true
.
#65519
#73344
(
kevinyhzou
).
A new MongoDB integration is now the default. Users who like to use the legacy MongoDB driver (based on the Poco driver) can enable server setting
use_legacy_mongodb_integration
.
#73359
(
Kirill Nikiforov
.
New Feature {#new-feature}
Move
JSON
/
Dynamic
/
Variant
types from experimental features to beta.
#72294
(
Pavel Kruglov
). We also backported all fixes as well as this change to 24.11.
Schema evolution for the
Iceberg data storage
format provides the user with extensive options for modifying the schema of their table. The order of columns, column names, and simple type extensions can be changed under the hood.
#69445
(
Daniil Ivanik
).
Integrate with Iceberg REST Catalog: a new database engine, named Iceberg, which plugs the whole catalog into ClickHouse.
#71542
(
Kseniia Sumarokova
).
Added cache for primary index of
MergeTree
tables (can be enabled by table setting
use_primary_key_cache
). If lazy load and cache are enabled for primary index, it will be loaded to cache on demand (similar to mark cache) instead of keeping it in memory forever. Added prewarm of primary index on inserts/mergs/fetches of data parts and on restarts of table (can be enabled by setting
prewarm_primary_key_cache
). This allows lower memory usage for huge tables on shared storage, and we tested it on tables over one quadrillion records.
#72102
(
Anton Popov
).
#72750
(
Alexander Gololobov
). | {"source_file": "2024.md"} | [
0.002541269874200225,
-0.029569225385785103,
0.09523013979196548,
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0.0757538229227066,
0.003445581067353487,
0.00040254220948554575,
-0.030434967949986458,
-0.016579758375883102,
0.09120038896799088,
0.03403641656041145,
0.07301408797502518,
-0.016055211424827576,
0.00... |
348330ab-62f1-4ff2-a535-93890471495f | Implement
SYSTEM LOAD PRIMARY KEY
command to load primary indexes for all parts of a specified table or for all tables if no table is specified. This will be useful for benchmarks and to prevent extra latency during query execution.
#66252
#67733
(
ZAWA_ll
).
Added a query that allows to attach
MergeTree
tables as
ReplicatedMergeTree
and vice versa:
ATTACH TABLE ... AS REPLICATED
and
ATTACH TABLE ... AS NOT REPLICATED
.
#65401
(
Kirill
).
A new setting,
http_response_headers
which allows you to customize the HTTP response headers. For example, you can tell the browser to render a picture that is stored in the database. This closes
#59620
.
#72656
(
Alexey Milovidov
).
Add function
toUnixTimestamp64Second
which converts a
DateTime64
to a
Int64
value with fixed second precision, so we can support return negative value if date is before the unix epoch.
#70597
(
zhanglistar
).
#73146
(
Robert Schulze
).
Add new setting
enforce_index_structure_match_on_partition_manipulation
to allow attach when the set of source table's projections and secondary indices is a subset of those in the target table. Close
#70602
.
#70603
(
zwy991114
).
Add syntax ALTER USER
{ADD|MODIFY|DROP SETTING}
, ALTER USER
{ADD|DROP PROFILE}
, the same for ALTER ROLE and ALTER PROFILE. So instead of replacing all the set of settings, you can modify it.
#72050
(
pufit
).
Added
arrayPRAUC
function, which calculates the AUC (Area Under the Curve) for the Precision Recall curve.
#72073
(
Emmanuel
).
Add
indexOfAssumeSorted
function for array types. Optimizes the search in the case of a sorted in non-decreasing order array. The effect appears on very large arrays (over 100,000 elements).
#72517
(
Eric Kurbanov
).
Allows to use a delimiter as an optional second argument for aggregate function
groupConcat
.
#72540
(
Yarik Briukhovetskyi
).
Function
translate
now supports character deletion if the
from
argument contains more characters than the
to
argument. Example:
SELECT translate('clickhouse', 'clickhouse', 'CLICK')
now returns
CLICK
.
#71441
(
shuai.xu
).
Experimental Features {#experimental-features}
A new MergeTree setting
allow_experimental_reverse_key
that enables support for descending sort order in MergeTree sorting keys. This is useful for time series analysis, especially TopN queries. Example usage:
ENGINE = MergeTree ORDER BY (time DESC, key)
- descending order for the
time
field.
#71095
(
Amos Bird
).
Performance Improvement {#performance-improvement}
JOIN reordering. Added an option to select the side of the join that will act as the inner (build) table in the query plan. This is controlled by
query_plan_join_swap_table
, which can be set to
auto
. In this mode, ClickHouse will try to choose the table with the smallest number of rows.
#71577
(
Vladimir Cherkasov
). | {"source_file": "2024.md"} | [
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0.0165068581700325,
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0.06712127476930618,
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0.12900103628635406,
-0.05143... |
2cfde2ae-cf68-4cc9-9bd5-6d3ac53970d0 | Now
parallel_hash
algorithm will be used (if applicable) when the
join_algorithm
setting is set to
default
. Two previous alternatives (
direct
and
hash
) are still considered when
parallel_hash
cannot be used.
#70788
(
Nikita Taranov
).
Add option to extract common expressions from
WHERE
and
ON
expressions in order to reduce the number of hash tables used during joins. This makes sense when the JOIN ON condition has common parts inside AND in different OR parts. Can be enabled by
optimize_extract_common_expressions = 1
.
#71537
(
János Benjamin Antal
).
Allows to use indexes on
SELECT
when an indexed column is CAST into a
LowCardinality(String)
, which could be the case when a query run over a Merge table with some tables having
String
and some
LowCardinality(String)
.
#71598
(
Yarik Briukhovetskyi
).
During query execution with parallel replicas and enabled local plan, do not perform index analysis on workers. The coordinator will choose ranges to read for workers based on index analysis on its side (on the query initiator). This makes short queries with parallel replicas have as low latency as single-node queries.
#72109
(
Igor Nikonov
).
Memory usage of
clickhouse disks remove --recursive
is reduced for object storage disks.
#67323
(
Kirill
).
Bring back optimization for reading subcolumns of single column in compact parts from
#57631
. It was deleted accidentally.
#72285
(
Pavel Kruglov
).
Speedup sorting of
LowCardinality(String)
columns by de-virtualizing calls in comparator.
#72337
(
Alexander Gololobov
).
Optimize function
argMin
/
argMax
for some simple data types.
#72350
(
alesapin
).
Optimize locking with shared locks in the memory tracker to reduce lock contention, which improves performance on systems with a very high number of CPU.
#72375
(
Jiebin Sun
).
Add a new setting,
use_async_executor_for_materialized_views
. Use async and potentially multi-threaded execution of materialized view query, can speedup views processing during INSERT, but also consumes more memory.
#72497
(
alesapin
).
Improved performance of deserialization of states of aggregate functions (in data type
AggregateFunction
and in distributed queries). Slightly improved performance of parsing of format
RowBinary
.
#72818
(
Anton Popov
).
Split ranges in reading with parallel replicas in the order of the table's key to consume less memory during reading.
#72173
(
JIaQi
).
Speed up insertions into merge tree in the case of a single value of partition key inside the inserted batch.
#72348
(
alesapin
).
Implement creating tables in parallel while restoring from a backup. Before this PR the
RESTORE
command always created tables in one thread, which could be slow in case of backups containing many tables.
#72427
(
Vitaly Baranov
). | {"source_file": "2024.md"} | [
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0.042314562946558,
-0.05... |
a735d6ce-dd0d-4922-a31d-efd1cd735a7e | Dropping mark cache might take noticeable time if it is big. If we hold context mutex during this it block many other activities, even new client connection cannot be established until it is released. And holding this mutex is not actually required for synchronization, it is enough to have a local reference to the cache via shared ptr.
#72749
(
Alexander Gololobov
).
Improvement {#improvement}
Remove the
allow_experimental_join_condition
setting, allowing non-equi conditions by default.
#69910
(
Vladimir Cherkasov
).
Settings from server config (users.xml) now apply on the client too. Useful for format settings, e.g.
date_time_output_format
.
#71178
(
Michael Kolupaev
).
Automatic
GROUP BY
/
ORDER BY
to disk based on the server/user memory usage. Controlled with
max_bytes_ratio_before_external_group_by
/
max_bytes_ratio_before_external_sort
query settings.
#71406
(
Azat Khuzhin
).
Adding a new cancellation logic:
CancellationChecker
checks timeouts for every started query and stops them once the timeout has reached.
#69880
(
Yarik Briukhovetskyi
).
Support ALTER from
Object
to
JSON
, which means you can easily migrate from the deprecated Object type.
#71784
(
Pavel Kruglov
).
Allow unknown values in set that are not present in Enum. Fix
#72662
.
#72686
(
zhanglistar
).
Support string search operator (e.g., LIKE) for
Enum
data type, implements
#72661
.
#72732
(
zhanglistar
).
Some meaningless ALTER USER queries were accepted. Fixes
#71227
.
#71286
(
Arthur Passos
).
Respect
prefer_locahost_replica
when building plan for distributed
INSERT ... SELECT
.
#72190
(
filimonov
).
Azure violated the Iceberg specification, mistakenly labeling Iceberg v1 as Iceberg v2. The problem is
described here
. Azure Iceberg Writer creates Iceberg metadata files (as well as manifest files) that violate specs. Now we attempt to read v1 Iceberg format metadata with the v2 reader (cause they write it in a this way), and added error when they didn't create corresponding fields in a manifest file.
#72277
(
Daniil Ivanik
).
Now it's allowed to
CREATE MATERIALIZED VIEW
with
UNION [ALL]
in query. Behavior is the same as for matview with
JOIN
: only the first table in
SELECT
expression will work as a trigger for insert, all other tables will be ignored. However, if there are many references to the first table (e.g., UNION with itself), all of them will be processed as the inserted block of data.
#72347
(
alesapin
).
Added source query validation when ClickHouse is used as a source for a dictionary.
#72548
(
Alexey Katsman
).
Ensure that ClickHouse will see ZooKeeper changes on config reloads.
#72593
(
Azat Khuzhin
).
Better memory usage approximation of cached marks to reduce total memory usage of the cache.
#72630
(
Antonio Andelic
). | {"source_file": "2024.md"} | [
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-0.040864843875169754,
0.024301011115312576,
0.009599685668945312,
0.035277582705020905,
-0.0002374628238612786,
0.02859378419816494,
0.08529095351696014,
0.03460369631648064,
-0.0... |
9ea02cf4-85b3-4493-bcd7-33fc04b4815b | Better memory usage approximation of cached marks to reduce total memory usage of the cache.
#72630
(
Antonio Andelic
).
Add a new
StartupScriptsExecutionState
metric. The metric can have three values: 0 = startup scripts have not finished yet, 1 = startup scripts executed successfully, 2 = startup scripts failed. We need this metric because we need to know if startup scripts are being executed successfully in the cloud, especially after releases to base configurations.
#72637
(
Miсhael Stetsyuk
).
Add the new
MergeTreeIndexGranularityInternalArraysTotalSize
metric to
system.metrics
. This metric is needed to find the instances with huge datasets susceptible to the high
Add retries to creating a replicated table.
#72682
(
Vitaly Baranov
).
Add
total_bytes_with_inactive
to
system.tables
to count the total bytes of inactive parts.
#72690
(
Kai Zhu
).
Add MergeTree settings to
system.settings_changes
.
#72694
(
Raúl Marín
).
Support JSON type in the
notEmpty
function.
#72741
(
Pavel Kruglov
).
Support parsing GCS S3 error
AuthenticationRequired
.
#72753
(
Vitaly Baranov
).
Support
Dynamic
type in functions
ifNull
and
coalesce
.
#72772
(
Pavel Kruglov
).
Support
Dynamic
in functions
toFloat64
/
touInt32
/etc.
#72989
(
Pavel Kruglov
).
Add S3 request settings
http_max_fields
,
http_max_field_name_size
,
http_max_field_value_size
and use them while parsing S3 API responses during making a backup or restoring.
#72778
(
Vitaly Baranov
).
Delete table metadata in keeper in Storage S3(Azure)Queue only after last table using this metadata was dropped.
#72810
(
Kseniia Sumarokova
).
Added
JoinBuildTableRowCount
/
JoinProbeTableRowCount/JoinResultRowCount
profile events.
#72842
(
Vladimir Cherkasov
).
Support subcolumns in MergeTree sorting key and skip indexes.
#72644
(
Pavel Kruglov
).
Bug Fix (user-visible misbehavior in an official stable release) {#bug-fix-user-visible-misbehavior-in-an-official-stable-release}
Fix possible intersecting parts for MergeTree (after an operation of moving part to the detached directory has been failed, possibly due to operation on object storage).
#70476
(
Azat Khuzhin
).
Fixes an error detection when a table name is too long. Provide a diagnostic telling the maximum length. Add a new function
getMaxTableNameLengthForDatabase
.
#70810
(
Yarik Briukhovetskyi
).
Fixed zombie processes after a crash of
clickhouse-library-bridge
(this program allows to run unsafe libraries).
#71301
(
MikhailBurdukov
).
Fix NoSuchKey error during transaction rollback when creating a directory fails for the
plain_rewritable
disk.
#71439
(
Julia Kartseva
).
Fix serialization of
Dynamic
values in
Pretty
JSON formats.
#71923
(
Pavel Kruglov
). | {"source_file": "2024.md"} | [
0.02737719938158989,
-0.04646710306406021,
-0.009322619065642357,
0.019956115633249283,
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-0.04120730236172676,
0.012923833914101124,
0.10338728874921799,
0.011059180833399296,
0.09959963709115982,
-0.00230393186211586,
-0.0032444612588733435,
0.029549269005656242,
-0.... |
63bfc575-2a55-49ff-be56-b77dcc34becb | Fix serialization of
Dynamic
values in
Pretty
JSON formats.
#71923
(
Pavel Kruglov
).
Add inferred format name to create query in
File
/
S3
/
URL
/
HDFS
/
Azure
engines. Previously the format name was inferred each time the server was restarted, and if the specified data files were removed, it led to errors during server startup.
#72108
(
Pavel Kruglov
).
Fix bugs when using a UDF in join on expression with the old analyzer.
#72179
(
Raúl Marín
).
Fixes some small bugs in
StorageObjectStorage
. Needs to enable
use_hive_partitioning
by default.
#72185
(
Yarik Briukhovetskyi
).
Fix a bug where
min_age_to_force_merge_on_partition_only
was getting stuck trying to merge down the same partition repeatedly that was already merged to a single part and not merging partitions that had multiple parts.
#72209
(
Christoph Wurm
).
Fixed a crash in
SimpleSquashingChunksTransform
that occurred in rare cases when processing sparse columns.
#72226
(
Vladimir Cherkasov
).
Fixed data race in
GraceHashJoin
as the result of which some rows might be missing in the join output.
#72233
(
Nikita Taranov
).
Fixed
ALTER DELETE
queries with materialized
_block_number
column (if setting
enable_block_number_column
is enabled).
#72261
(
Anton Popov
).
Fixed data race when
ColumnDynamic::dumpStructure()
is called concurrently e.g., in
ConcurrentHashJoin
constructor.
#72278
(
Nikita Taranov
).
Fix possible
LOGICAL_ERROR
with duplicate columns in
ORDER BY ... WITH FILL
.
#72387
(
Vladimir Cherkasov
).
Fixed mismatched types in several cases after applying
optimize_functions_to_subcolumns
.
#72394
(
Anton Popov
).
Use
AWS_CONTAINER_AUTHORIZATION_TOKEN_FILE
instead of
AWS_CONTAINER_AUTHORIZATION_TOKEN_PATH
. Fixes
#71074
.
#72397
(
Konstantin Bogdanov
).
Fix failure on parsing
BACKUP DATABASE db EXCEPT TABLES db.table
queries.
#72429
(
Konstantin Bogdanov
).
Don't allow creating empty
Variant
.
#72454
(
Pavel Kruglov
).
Fix invalid formatting of
result_part_path
in
system.merges
.
#72567
(
Konstantin Bogdanov
).
Fix parsing a glob with one element (such as
{file}
).
#72572
(
Konstantin Bogdanov
).
Fix query generation for the follower server in case of a distributed query with
ARRAY JOIN
. Fixes
#69276
.
#72608
(
Dmitry Novik
).
Fix a bug when DateTime64 IN DateTime64 returns nothing.
#72640
(
Yarik Briukhovetskyi
).
Fixed inconsistent metadata when adding a new replica to a Replicated database that has a table created with
flatten_nested=0
.
#72685
(
Alexander Tokmakov
).
Fix advanced SSL configuration for Keeper's internal communication.
#72730
(
Antonio Andelic
).
Fix "No such key" error in S3Queue unordered mode with
tracked_files_limit
setting smaller than s3 files appearance rate.
#72738
(
Kseniia Sumarokova
).
Fix exception thrown in RemoteQueryExecutor when a user does not exist locally.
#72759
(
Andrey Zvonov
). | {"source_file": "2024.md"} | [
-0.032357703894376755,
-0.0019266910385340452,
-0.01597278006374836,
0.04380253329873085,
-0.050680793821811676,
-0.0040407790802419186,
-0.05945294350385666,
0.014537928625941277,
-0.023681864142417908,
0.05859541520476341,
-0.01818159408867359,
0.0031639791559427977,
0.028526637703180313,
... |
13e69c19-0311-407a-9ce4-602b888f6917 | Fix exception thrown in RemoteQueryExecutor when a user does not exist locally.
#72759
(
Andrey Zvonov
).
Fixed mutations with materialized
_block_number
column (if setting
enable_block_number_column
is enabled).
#72854
(
Anton Popov
).
Fix backup/restore with plain rewritable disk in case there are empty files in backup.
#72858
(
Kseniia Sumarokova
).
Properly cancel inserts in DistributedAsyncInsertDirectoryQueue.
#72885
(
Antonio Andelic
).
Fixed crash while parsing of incorrect data into sparse columns (can happen with enabled setting
enable_parsing_to_custom_serialization
).
#72891
(
Anton Popov
).
Fix potential crash during backup restore.
#72947
(
Kseniia Sumarokova
).
Fixed bug in
parallel_hash
JOIN method that might appear when query has complex condition in the
ON
clause with inequality filters.
#72993
(
Nikita Taranov
).
Use default format settings during JSON parsing to avoid broken deserialization.
#73043
(
Pavel Kruglov
).
Fix crash in transactions with unsupported storage.
#73045
(
Raúl Marín
).
Fix possible overestimation of memory tracking (when the difference between
MemoryTracking
and
MemoryResident
kept growing).
#73081
(
Azat Khuzhin
).
Check for duplicate JSON keys during Tuple parsing. Previously it could lead to a logical error
Invalid number of rows in Chunk
during parsing.
#73082
(
Pavel Kruglov
).
Build/Testing/Packaging Improvement {#buildtestingpackaging-improvement}
All small utilities previously stored in
/utils
folder and required manual compilation from sources are now a part of main ClickHouse bundle. This closes:
#72404
.
#72426
(
Nikita Mikhaylov
).
Get rid of
/etc/systemd/system/clickhouse-server.service
removal introduced in 22.3
#39323
.
#72259
(
Mikhail f. Shiryaev
).
Split large translation units to avoid compilation failures due to memory/cpu limitations.
#72352
(
Yakov Olkhovskiy
).
OSX: Build with ICU support, which enables collations, charset conversions and other localization features.
#73083
(
Raúl Marín
).
ClickHouse release 24.11, 2024-11-26 {#a-id2411a-clickhouse-release-2411-2024-11-26}
Backward Incompatible Change {#backward-incompatible-change-1}
Remove system tables
generate_series
and
generateSeries
. They were added by mistake here:
#59390
.
#71091
(
Alexey Milovidov
).
Remove
StorageExternalDistributed
. Closes
#70600
.
#71176
(
flynn
).
The table engines Kafka, NATS and RabbitMQ are now covered by their own grants in the
SOURCES
hierarchy. Add grants to any non-default database users that create tables with these engine types.
#71250
(
Christoph Wurm
).
Check the full mutation query before executing it (including subqueries). This prevents accidentally running an invalid query and building up dead mutations that block valid mutations.
#71300
(
Christoph Wurm
). | {"source_file": "2024.md"} | [
-0.045878712087869644,
-0.00819899421185255,
-0.036964017897844315,
-0.007518424186855555,
-0.08133376389741898,
-0.04963500052690506,
-0.10919998586177826,
0.050074443221092224,
-0.04029243811964989,
0.05056413263082504,
0.06758692115545273,
0.009738374501466751,
0.07977396249771118,
-0.0... |
1a9ce251-0466-4d60-9094-19aa0d7f0d73 | Rename filesystem cache setting
skip_download_if_exceeds_query_cache
to
filesystem_cache_skip_download_if_exceeds_per_query_cache_write_limit
.
#71578
(
Kseniia Sumarokova
).
Remove support for
Enum
as well as
UInt128
and
UInt256
arguments in
deltaSumTimestamp
. Remove support for
Int8
,
UInt8
,
Int16
, and
UInt16
of the second ("timestamp") argument of
deltaSumTimestamp
.
#71790
(
Alexey Milovidov
).
When retrieving data directly from a dictionary using Dictionary storage, dictionary table function, or direct SELECT from the dictionary itself, it is now enough to have
SELECT
permission or
dictGet
permission for the dictionary. This aligns with previous attempts to prevent ACL bypasses: https://github.com/ClickHouse/ClickHouse/pull/57362 and https://github.com/ClickHouse/ClickHouse/pull/65359. It also makes the latter one backward compatible.
#72051
(
Nikita Mikhaylov
).
Experimental feature {#experimental-feature}
Implement
allow_feature_tier
as a global switch to disable all experimental / beta features.
#71841
#71145
(
Raúl Marín
).
Fix possible error
No such file or directory
due to unescaped special symbols in files for JSON subcolumns.
#71182
(
Pavel Kruglov
).
Support alter from String to JSON. This PR also changes the serialization of JSON and Dynamic types to new version V2. Old version V1 can be still used by enabling setting
merge_tree_use_v1_object_and_dynamic_serialization
(can be used during upgrade to be able to rollback the version without issues).
#70442
(
Pavel Kruglov
).
Implement simple CAST from Map/Tuple/Object to new JSON through serialization/deserialization from JSON string.
#71320
(
Pavel Kruglov
).
Don't allow Variant/Dynamic types in ORDER BY/GROUP BY/PARTITION BY/PRIMARY KEY by default because it may lead to unexpected results.
#69731
(
Pavel Kruglov
).
Forbid Dynamic/Variant types in min/max functions to avoid confusion.
#71761
(
Pavel Kruglov
).
New Feature {#new-feature-1}
Added SQL syntax to describe workload and resource management. https://clickhouse.com/docs/operations/workload-scheduling.
#69187
(
Sergei Trifonov
).
A new data type,
BFloat16
, represents 16-bit floating point numbers with 8-bit exponent, sign, and 7-bit mantissa. This closes
#44206
. This closes
#49937
.
#64712
(
Alexey Milovidov
).
Add
CHECK GRANT
query to check whether the current user/role has been granted the specific privilege and whether the corresponding table/column exists in the memory.
#68885
(
Unalian
).
Add
iceberg[S3;HDFS;Azure]Cluster
,
deltaLakeCluster
,
hudiCluster
table functions.
#72045
(
Mikhail Artemenko
).
Add ability to set user/password in http_handlers (for
dynamic_query_handler
/
predefined_query_handler
).
#70725
(
Azat Khuzhin
).
Add support for staleness clause in the ORDER BY WITH FILL operator.
#71151
(
Mikhail Artemenko
). | {"source_file": "2024.md"} | [
-0.046423543244600296,
0.019609395414590836,
-0.0581975132226944,
-0.012660501524806023,
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-0.1379804015159607,
0.05321275442838669,
-0.010993285104632378,
0.006402389146387577,
0.058592215180397034,
0.08278457075357437,
0.012361335568130016,
-0.008280260488390923,
-0.... |
4503fccf-f9e6-4af3-a554-070f2dddff9d | Add support for staleness clause in the ORDER BY WITH FILL operator.
#71151
(
Mikhail Artemenko
).
Allow each authentication method to have its own expiration date, remove from user entity.
#70090
(
Arthur Passos
).
Added new functions
parseDateTime64
,
parseDateTime64OrNull
and
parseDateTime64OrZero
. Compared to the existing function
parseDateTime
(and variants), they return a value of type
DateTime64
instead of
DateTime
.
#71581
(
kevinyhzou
).
Performance Improvement {#performance-improvement-1}
Optimized memory usage for values of index granularity if granularity is constant for part. Added an ability to always select constant granularity for part (setting
use_const_adaptive_granularity
), which helps to ensure that it is always optimized in memory. It helps in large workloads (trillions of rows in shared storage) to avoid constantly growing memory usage by metadata (values of index granularity) of data parts.
#71786
(
Anton Popov
).
Now we don't copy input blocks columns for
join_algorithm = 'parallel_hash'
when distribute them between threads for parallel processing.
#67782
(
Nikita Taranov
).
Optimized
Replacing
merge algorithm for non-intersecting parts.
#70977
(
Anton Popov
).
Do not list detached parts from readonly and write-once disks for metrics and system.detached_parts.
#71086
(
Alexey Milovidov
).
Do not calculate heavy asynchronous metrics by default. The feature was introduced in
#40332
, but it isn't good to have a heavy background job that is needed for only a single customer.
#71087
(
Alexey Milovidov
).
For the
plain_rewritable
disks: Do not call the object storage API when listing directories, as this may be cost-inefficient. Instead, store the list of filenames in the memory. The trade-offs are increased initial load time and memory required to store filenames.
#70823
(
Julia Kartseva
).
Improve the performance and accuracy of
system.query_metric_log
collection interval by reducing the critical region.
#71473
(
Pablo Marcos
).
Read-in-order optimization via generating virtual rows, so less data would be read during merge sort especially useful when multiple parts exist.
#62125
(
Shichao Jin
).
Added server setting
async_load_system_database
that allows the server to start with not fully loaded system database. This helps to start ClickHouse faster if there are many system tables.
#69847
(
Sergei Trifonov
).
Add
--threads
parameter to
clickhouse-compressor
, which allows to compress data in parallel.
#70860
(
Alexey Milovidov
).
Added a setting
prewarm_mark_cache
which enables loading of marks to mark cache on inserts, merges, fetches of parts and on startup of the table.
#71053
(
Anton Popov
).
Shrink to fit index_granularity array in memory to reduce memory footprint for MergeTree table engines family.
#71595
(
alesapin
). | {"source_file": "2024.md"} | [
-0.02996736578643322,
0.05120746046304703,
-0.027181128039956093,
-0.0009647340048104525,
0.006444326136261225,
-0.06435525417327881,
-0.038102276623249054,
0.019107544794678688,
-0.017666885629296303,
0.008730625733733177,
0.001055699191056192,
0.02845449559390545,
0.007922165095806122,
-... |
72b9f080-901b-42d4-9d1f-c56f1388ddce | Shrink to fit index_granularity array in memory to reduce memory footprint for MergeTree table engines family.
#71595
(
alesapin
).
Turn off filesystem cache setting
boundary_alignment
for non-disk read, which improves performance of reading from standalone remote files with caching.
#71827
(
Kseniia Sumarokova
).
Queries like
SELECT * FROM table LIMIT ...
used to load part indexes even though they were not used.
#71866
(
Alexander Gololobov
).
Enable
parallel_replicas_local_plan
by default. Building a full-fledged local plan on the query initiator improves parallel replicas performance with less resource consumption, provides opportunities to apply more query optimizations.
#70171
(
Igor Nikonov
).
Improvement {#improvement-1}
Allow using clickhouse with a file argument as
ch queries.sql
.
#71589
(
Raúl Marín
).
The
Vertical
format (which is also activated when you end your query with
\G
) gets the features of Pretty formats, such as: - highlighting thousand groups in numbers; - printing a readable number tip.
#71630
(
Alexey Milovidov
).
Push external user roles from query originator to other nodes in cluster. Helpful when only originator has access to the external authenticator (like LDAP).
#70332
(
Andrey Zvonov
).
Added aliases
anyRespectNulls
,
firstValueRespectNulls
, and
anyValueRespectNulls
for aggregation function
any
. Also added aliases
anyLastRespectNulls
and
lastValueRespectNulls
for aggregation function
anyLast
. This allows using more natural camel-case-only syntax rather than mixed camel-case/underscore syntax, for example:
SELECT anyLastRespectNullsStateIf
instead of
anyLast_respect_nullsStateIf
.
#71403
(
Peter Nguyen
).
Added the configuration
date_time_utc
parameter, enabling JSON log formatting to support UTC date-time in RFC 3339/ISO8601 format.
#71560
(
Ali
).
Added a new header type for S3 endpoints for user authentication (
access_header
). This allows to get some access header with the lowest priority, which will be overwritten with
access_key_id
from any other source (for example, a table schema or a named collection).
#71011
(
MikhailBurdukov
).
Higher-order functions with constant arrays and constant captured arguments will return constants.
#58400
(
Alexey Milovidov
).
Query plan step names (
EXPLAIN PLAN json=1
) and pipeline processor names (
EXPLAIN PIPELINE compact=0,graph=1
) now have a unique id as a suffix. This allows to match processors profiler output and OpenTelemetry traces with explain output.
#63518
(
qhsong
).
Added option to check if the object exists after writing it to Azure Blob Storage, this is controlled by setting
check_objects_after_upload
.
#64847
(
Smita Kulkarni
).
Use
Atomic
database by default in
clickhouse-local
. Address items 1 and 5 from
#50647
. Closes
#44817
.
#68024
(
Alexey Milovidov
). | {"source_file": "2024.md"} | [
0.0008316617459058762,
0.003206319408491254,
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0.042982932180166245,
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-0.046468835324048996,
0.06632594764232635,
-0.022572319954633713,
0.05134394019842148,
-0.015231086872518063,
0.038422781974077225,
0.015933256596326828,
-0... |
99b53aa1-37c4-4a9a-8b44-e9637ab9401c | Use
Atomic
database by default in
clickhouse-local
. Address items 1 and 5 from
#50647
. Closes
#44817
.
#68024
(
Alexey Milovidov
).
Exceptions break the HTTP protocol in order to alert the client about error.
#68800
(
Sema Checherinda
).
Report hosts running distributed DDL queries by creating replica_dir and mark replicas active in DDLWorker.
#69658
(
tuanpach
).
Wait only on active replicas for database ON CLUSTER queries if distributed_ddl_output_mode is set to be *_only_active.
#69660
(
tuanpach
).
Better error-handling and cancellation of
ON CLUSTER
backups and restores: - If a backup or restore fails on one host then it'll be cancelled on other hosts automatically - No weird errors must be produced because some hosts failed while other hosts continued their work - If a backup or restore is cancelled on one host then it'll be cancelled on other hosts automatically - Fix issues with
test_disallow_concurrency
- now disabling of concurrency must work better - Backups and restores now are much more resistant to ZooKeeper disconnects.
#70027
(
Vitaly Baranov
).
Support
ALTER TABLE ... MODIFY/RESET SETTING ...
for certain settings in storage S3Queue.
#70811
(
Kseniia Sumarokova
).
Added the ability to reload client certificates in the same way as the procedure for reloading server certificates.
#70997
(
Roman Antonov
).
Make the client history size configurable and increase its default size.
#71014
(
Jiří Kozlovský
).
Boolean types support for the parquet native reader.
#71055
(
Arthur Passos
).
Retry more errors when interacting with S3, such as "Malformed message".
#71088
(
Alexey Milovidov
).
Lower log level for some messages about S3.
#71090
(
Alexey Milovidov
).
Support writing HDFS files with spaces.
#71105
(
exmy
).
Added settings limiting the number of replicated tables, dictionaries and views.
#71179
(
Kirill
).
Use
AWS_CONTAINER_AUTHORIZATION_TOKEN_FILE
instead of
AWS_CONTAINER_AUTHORIZATION_TOKEN
if former is available. Fixes
#71074
.
#71269
(
Konstantin Bogdanov
).
Remove the metadata_version ZooKeeper node creation from ReplicatedMergeTree restarting thread. The only scenario where we need to create this node is when the user updated from a version earlier than 20.4 straight to one later than 24.10. ClickHouse does not support upgrades that span more than a year, so we should throw an exception and ask the user to update gradually, instead of creating the node.
#71385
(
Miсhael Stetsyuk
).
Add per host dashboards
Overview (host)
and
Cloud overview (host)
to advanced dashboard.
#71422
(
alesapin
).
clickhouse-local
uses implicit SELECT by default, which allows to use it as a calculator. Improve the syntax highlighting for the implicit SELECT mode.
#71620
(
Alexey Milovidov
).
The command line applications will highlight syntax even for multi-statements.
#71622
(
Alexey Milovidov
). | {"source_file": "2024.md"} | [
-0.036431677639484406,
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0.022243373095989227,
0.007896519266068935,
-0.01203550398349762,
0.06234319135546684,
-0.... |
5c0650ee-49c7-48a7-a21c-3e4c7689a1f9 | The command line applications will highlight syntax even for multi-statements.
#71622
(
Alexey Milovidov
).
Command-line applications will return non-zero exit codes on errors. In previous versions, the
disks
application returned zero on errors, and other applications returned zero for errors 256 (
PARTITION_ALREADY_EXISTS
) and 512 (
SET_NON_GRANTED_ROLE
).
#71623
(
Alexey Milovidov
).
When user/group is given as ID, the
clickhouse su
fails. This patch fixes it to accept
UID:GID
as well.
#71626
(
Mikhail f. Shiryaev
).
Allow to disable memory buffer increase for filesystem cache via setting
filesystem_cache_prefer_bigger_buffer_size
.
#71640
(
Kseniia Sumarokova
).
Add a separate setting
background_download_max_file_segment_size
for background download max file segment size in filesystem cache.
#71648
(
Kseniia Sumarokova
).
Slightly better JSON type parsing: if current block for the JSON path contains values of several types, try to choose the best type by trying types in special best-effort order.
#71785
(
Pavel Kruglov
).
Previously reading from
system.asynchronous_metrics
would wait for concurrent update to finish. This can take long time if system is under heavy load. With this change the previously collected values can always be read.
#71798
(
Alexander Gololobov
).
S3Queue and AzureQueue: Set
polling_max_timeout_ms
to 10 minutes,
polling_backoff_ms
to 30 seconds.
#71817
(
Kseniia Sumarokova
).
Update
HostResolver
three times in a
history
period.
#71863
(
Sema Checherinda
).
On the advanced dashboard HTML page added a dropdown selector for the dashboard from
system.dashboards
table.
#72081
(
Sergei Trifonov
).
Check if default database is present after authorization. Fixes
#71097
.
#71140
(
Konstantin Bogdanov
).
Bug Fix (user-visible misbehavior in an official stable release) {#bug-fix-user-visible-misbehavior-in-an-official-stable-release-1}
The parts deduplicated during
ATTACH PART
query don't get stuck with the
attaching_
prefix anymore.
#65636
(
Kirill
).
Fix for the bug when DateTime64 losing precision for the
IN
function.
#67230
(
Yarik Briukhovetskyi
).
Fix possible logical error when using functions with
IGNORE/RESPECT NULLS
in
ORDER BY ... WITH FILL
, close
#57609
.
#68234
(
Vladimir Cherkasov
).
Fixed rare logical errors in asynchronous inserts with format
Native
in case of reached memory limit.
#68965
(
Anton Popov
).
Fix COMMENT in CREATE TABLE for EPHEMERAL column.
#70458
(
Yakov Olkhovskiy
).
Fix logical error in JSONExtract with LowCardinality(Nullable).
#70549
(
Pavel Kruglov
).
Allow system drop replica zkpath when there is another replica with the same zk path.
#70642
(
MikhailBurdukov
).
Fix a crash and a leak in AggregateFunctionGroupArraySorted.
#70820
(
Michael Kolupaev
).
Add ability to override Content-Type by user headers in the URL engine.
#70859
(
Artem Iurin
). | {"source_file": "2024.md"} | [
-0.01285148411989212,
-0.00589485140517354,
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0.0329960435628891,
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0.00... |
67b24b62-8ae0-4039-bdbf-89b250f4a288 | Fix a crash and a leak in AggregateFunctionGroupArraySorted.
#70820
(
Michael Kolupaev
).
Add ability to override Content-Type by user headers in the URL engine.
#70859
(
Artem Iurin
).
Fix logical error in
StorageS3Queue
"Cannot create a persistent node in /processed since it already exists".
#70984
(
Kseniia Sumarokova
).
Fixed named sessions not being closed and hanging on forever under certain circumstances.
#70998
(
Márcio Martins
).
Fix the bug that didn't consider _row_exists column in rebuild option of projection lightweight delete.
#71089
(
Shichao Jin
).
Fix
AT_* is out of range
problem when running on Oracle Linux UEK 6.10.
#71109
(
Örjan Fors
).
Fix wrong value in system.query_metric_log due to unexpected race condition.
#71124
(
Pablo Marcos
).
Fix mismatched aggreage function name of quantileExactWeightedInterpolated. The bug was introduced in https://github.com/ClickHouse/ClickHouse/pull/69619. cc @Algunenano.
#71168
(
李扬
).
Fix bad_weak_ptr exception with Dynamic in functions comparison.
#71183
(
Pavel Kruglov
).
Checks that read 7z file is on a local machine.
#71184
(
Daniil Ivanik
).
Fix ignoring format settings in Native format via HTTP and Async Inserts.
#71193
(
Pavel Kruglov
).
SELECT queries run with setting
use_query_cache = 1
are no longer rejected if the name of a system table appears as a literal, e.g.
SELECT * FROM users WHERE name = 'system.metrics' SETTINGS use_query_cache = true;
now works.
#71254
(
Robert Schulze
).
Fix bug of memory usage increase if enable_filesystem_cache=1, but disk in storage configuration did not have any cache configuration.
#71261
(
Kseniia Sumarokova
).
Fix possible error "Cannot read all data" erros during deserialization of LowCardinality dictionary from Dynamic column.
#71299
(
Pavel Kruglov
).
Fix incomplete cleanup of parallel output format in the client.
#71304
(
Raúl Marín
).
Added missing unescaping in named collections. Without fix clickhouse-server can't start.
#71308
(
MikhailBurdukov
).
Fix async inserts with empty blocks via native protocol.
#71312
(
Anton Popov
).
Fix inconsistent AST formatting when granting wrong wildcard grants
#71309
.
#71332
(
pufit
).
Add try/catch to data parts destructors to avoid std::terminate.
#71364
(
alesapin
).
Check suspicious and experimental types in JSON type hints.
#71369
(
Pavel Kruglov
).
Start memory worker thread on non-Linux OS too (fixes
#71051
).
#71384
(
Alexandre Snarskii
).
Fix error Invalid number of rows in Chunk with the Variant column.
#71388
(
Pavel Kruglov
).
Fix error column "attgenerated" does not exist for older PostgreSQL versions, fix
#60651
.
#71396
(
0xMihalich
).
To avoid spamming the server logs, failing authentication attempts are now logged at level
DEBUG
instead of
ERROR
.
#71405
(
Robert Schulze
). | {"source_file": "2024.md"} | [
-0.09918321669101715,
-0.021525997668504715,
-0.03851166367530823,
0.05841623246669769,
-0.005382869392633438,
-0.06441058963537216,
0.007605122867971659,
-0.013018167577683926,
-0.017806997522711754,
0.05381551384925842,
0.010962462984025478,
-0.04162709042429924,
0.008268725126981735,
-0... |
2ad4504c-91ae-4f36-8dd0-b4ea41ac1c2d | To avoid spamming the server logs, failing authentication attempts are now logged at level
DEBUG
instead of
ERROR
.
#71405
(
Robert Schulze
).
Fix crash in
mongodb
table function when passing wrong arguments (e.g.
NULL
).
#71426
(
Vladimir Cherkasov
).
Fix crash with optimize_rewrite_array_exists_to_has.
#71432
(
Raúl Marín
).
Fixed the usage of setting
max_insert_delayed_streams_for_parallel_write
in inserts. Previously it worked incorrectly which could lead to high memory usage in inserts which write data into several partitions.
#71474
(
Anton Popov
).
Fix possible error
Argument for function must be constant
(old analyzer) in case when arrayJoin can apparently appear in
WHERE
condition. Regression after https://github.com/ClickHouse/ClickHouse/pull/65414.
#71476
(
Nikolai Kochetov
).
Prevent crash in SortCursor with 0 columns (old analyzer).
#71494
(
Raúl Marín
).
Fix Date32 out of range caused by uninitialized ORC data. For more details, refer to https://github.com/apache/incubator-gluten/issues/7823.
#71500
(
李扬
).
Fix counting column size in wide part for Dynamic and JSON types.
#71526
(
Pavel Kruglov
).
Analyzer fix when query inside materialized view uses IN with CTE. Closes
#65598
.
#71538
(
Maksim Kita
).
Avoid crash when using a UDF in a constraint.
#71541
(
Raúl Marín
).
Return 0 or default char instead of throwing an error in bitShift functions in case of out of bounds.
#71580
(
Pablo Marcos
).
Fix server crashes while using materialized view with certain engines.
#71593
(
Pervakov Grigorii
).
Array join with a nested data structure, which contains an alias to a constant array was leading to a null pointer dereference. This closes
#71677
.
#71678
(
Alexey Milovidov
).
Fix LOGICAL_ERROR when doing ALTER with empty tuple. This fixes
#71647
.
#71679
(
Amos Bird
).
Don't transform constant set in predicates over partition columns in case of NOT IN operator.
#71695
(
Eduard Karacharov
).
Fix docker init script fail log message for more clean understanding.
#71734
(
Андрей
).
Fix CAST from LowCardinality(Nullable) to Dynamic. Previously it could lead to error
Bad cast from type DB::ColumnVector<int> to DB::ColumnNullable
.
#71742
(
Pavel Kruglov
).
Fix exception for toDayOfWeek on WHERE condition with primary key of DateTime64 type.
#71849
(
Yakov Olkhovskiy
).
Fixed filling of defaults after parsing into sparse columns.
#71854
(
Anton Popov
).
Fix GROUPING function error when input is ALIAS on distributed table, close
#68602
.
#71855
(
Vladimir Cherkasov
).
Fix possible crash when using
allow_experimental_join_condition
, close
#71693
.
#71857
(
Vladimir Cherkasov
).
Fixed select statements that use
WITH TIES
clause which might not return enough rows.
#71886
(
wxybear
).
Fix the TOO_LARGE_ARRAY_SIZE exception caused when a column of arrayWithConstant evaluation is mistaken to cross the array size limit.
#71894
(
Udi
). | {"source_file": "2024.md"} | [
0.009785197675228119,
0.01416567713022232,
0.015883611515164375,
0.04860933497548103,
-0.012805008329451084,
-0.04128536209464073,
-0.08169013261795044,
0.028994297608733177,
-0.00699053518474102,
0.09936443716287613,
-0.040794555097818375,
0.0024519036523997784,
-0.0038529366720467806,
0.... |
586ac1e3-7455-4082-b012-c97ce609da11 | Fix the TOO_LARGE_ARRAY_SIZE exception caused when a column of arrayWithConstant evaluation is mistaken to cross the array size limit.
#71894
(
Udi
).
clickhouse-benchmark
reported wrong metrics for queries taking longer than one second.
#71898
(
Alexey Milovidov
).
Fix data race between the progress indicator and the progress table in clickhouse-client. This issue is visible when FROM INFILE is used. Intercept keystrokes during INSERT queries to toggle progress table display.
#71901
(
Julia Kartseva
).
Use auxiliary keepers for cluster autodiscovery.
#71911
(
Anton Ivashkin
).
Fix rows_processed column in system.s3/azure_queue_log broken in 24.6. Closes
#69975
.
#71946
(
Kseniia Sumarokova
).
Fixed case when
s3
/
s3Cluster
functions could return incomplete result or throw an exception. It involved using glob pattern in s3 uri (like
pattern/*
) and an empty object should exist with the key
pattern/
(such objects automatically created by S3 Console). Also default value for setting
s3_skip_empty_files
changed from
false
to
true
by default.
#71947
(
Nikita Taranov
).
Fix a crash in clickhouse-client syntax highlighting. Closes
#71864
.
#71949
(
Nikolay Degterinsky
).
Fix
Illegal type
error for
MergeTree
tables with binary monotonic function in
ORDER BY
when the first argument is constant. Fixes
#71941
.
#71966
(
Nikolai Kochetov
).
Allow only SELECT queries in EXPLAIN AST used inside subquery. Other types of queries lead to logical error: 'Bad cast from type DB::ASTCreateQuery to DB::ASTSelectWithUnionQuery' or
Inconsistent AST formatting
.
#71982
(
Pavel Kruglov
).
When insert a record by
clickhouse-client
, client will read column descriptions from server. but there was a bug that we wrote the descritions with a wrong order , it should be [statistics, ttl, settings].
#71991
(
Han Fei
).
Fix formatting of
MOVE PARTITION ... TO TABLE ...
alter commands when
format_alter_commands_with_parentheses
is enabled.
#72080
(
János Benjamin Antal
).
Fixes RIGHT / FULL joins in queries with parallel replicas. Now, RIGHT joins can be executed with parallel replicas (right table reading is distributed). FULL joins can't be parallelized among nodes, - executed locally.
#71162
(
Igor Nikonov
).
Fix the issue where ClickHouse in Docker containers printed "get_mempolicy: Operation not permitted" into stderr due to restricted syscalls.
#70900
(
filimonov
).
Fix the metadata_version record in ZooKeeper in restarting thread rather than in attach thread.
#70297
(
Miсhael Stetsyuk
).
This is a fix for "zero-copy" replication, which is unsupported and will be removed entirely. Don't delete a blob when there are nodes using it in ReplicatedMergeTree with zero-copy replication.
#71186
(
Antonio Andelic
). | {"source_file": "2024.md"} | [
-0.00405115308240056,
-0.04906393215060234,
-0.09002231061458588,
0.008605237118899822,
-0.00804342795163393,
-0.03352377563714981,
0.0032559994142502546,
-0.09696707129478455,
0.003690577344968915,
0.0883711650967598,
-0.015066711232066154,
0.000791465281508863,
0.023082228377461433,
-0.0... |
2609dd63-55cf-4bd2-8d4f-685d1cc5697d | This is a fix for "zero-copy" replication, which is unsupported and will be removed entirely. Acquiring zero-copy shared lock before moving a part to zero-copy disk to prevent possible data loss if Keeper is unavailable.
#71845
(
Aleksei Filatov
).
ClickHouse release 24.10, 2024-10-31 {#a-id2410a-clickhouse-release-2410-2024-10-31}
Backward Incompatible Change {#backward-incompatible-change-2}
Allow to write
SETTINGS
before
FORMAT
in a chain of queries with
UNION
when subqueries are inside parentheses. This closes
#39712
. Change the behavior when a query has the SETTINGS clause specified twice in a sequence. The closest SETTINGS clause will have a preference for the corresponding subquery. In the previous versions, the outermost SETTINGS clause could take a preference over the inner one.
#68614
(
Alexey Milovidov
).
Reordering of filter conditions from
[PRE]WHERE
clause is now allowed by default. It could be disabled by setting
allow_reorder_prewhere_conditions
to
false
.
#70657
(
Nikita Taranov
).
Remove the
idxd-config
library, which has an incompatible license. This also removes the experimental Intel DeflateQPL codec.
#70987
(
Alexey Milovidov
).
New Feature {#new-feature-2}
Allow to grant access to the wildcard prefixes.
GRANT SELECT ON db.table_pefix_* TO user
.
#65311
(
pufit
).
If you press space bar during query runtime, the client will display a real-time table with detailed metrics. You can enable it globally with the new
--progress-table
option in clickhouse-client; a new
--enable-progress-table-toggle
is associated with the
--progress-table
option, and toggles the rendering of the progress table by pressing the control key (Space).
#63689
(
Maria Khristenko
),
#70423
(
Julia Kartseva
).
Allow to cache read files for object storage table engines and data lakes using hash from ETag + file path as cache key.
#70135
(
Kseniia Sumarokova
).
Support creating a table with a query:
CREATE TABLE ... CLONE AS ...
. It clones the source table's schema and then attaches all partitions to the newly created table. This feature is only supported with tables of the
MergeTree
family Closes
#65015
.
#69091
(
tuanpach
).
Add a new system table,
system.query_metric_log
which contains history of memory and metric values from table system.events for individual queries, periodically flushed to disk.
#66532
(
Pablo Marcos
).
A simple SELECT query can be written with implicit SELECT to enable calculator-style expressions, e.g.,
ch "1 + 2"
. This is controlled by a new setting,
implicit_select
.
#68502
(
Alexey Milovidov
).
Support the
--copy
mode for clickhouse local as a shortcut for format conversion
#68503
.
#68583
(
Denis Hananein
).
Add a builtin HTML page for visualizing merges which is available at the
/merges
path.
#70821
(
Alexey Milovidov
).
Add support for
arrayUnion
function.
#68989
(
Peter Nguyen
). | {"source_file": "2024.md"} | [
-0.0612313374876976,
-0.024948926642537117,
0.029299983754754066,
0.010383637621998787,
-0.08710817247629166,
0.008916560560464859,
0.0070439535193145275,
-0.0653005838394165,
-0.010614783503115177,
0.055740777403116226,
0.0338510200381279,
-0.011721626855432987,
0.08819299191236496,
-0.04... |
545b5a2b-9ebe-43a4-9959-a0c8e24cb607 | Add a builtin HTML page for visualizing merges which is available at the
/merges
path.
#70821
(
Alexey Milovidov
).
Add support for
arrayUnion
function.
#68989
(
Peter Nguyen
).
Allow parametrised SQL aliases.
#50665
(
Anton Kozlov
).
A new aggregate function
quantileExactWeightedInterpolated
, which is a interpolated version based on quantileExactWeighted. Some people may wonder why we need a new
quantileExactWeightedInterpolated
since we already have
quantileExactInterpolatedWeighted
. The reason is the new one is more accurate than the old one. This is for spark compatibility.
#69619
(
李扬
).
A new function
arrayElementOrNull
. It returns
NULL
if the array index is out of range or a Map key not found.
#69646
(
李扬
).
Allows users to specify regular expressions through new
message_regexp
and
message_regexp_negative
fields in the
config.xml
file to filter out logging. The logging is applied to the formatted un-colored text for the most intuitive developer experience.
#69657
(
Peter Nguyen
).
Added
RIPEMD160
function, which computes the RIPEMD-160 cryptographic hash of a string. Example:
SELECT HEX(RIPEMD160('The quick brown fox jumps over the lazy dog'))
returns
37F332F68DB77BD9D7EDD4969571AD671CF9DD3B
.
#70087
(
Dergousov Maxim
).
Support reading
Iceberg
tables on
HDFS
.
#70268
(
flynn
).
Support for CTE in the form of
WITH ... INSERT
, as previously we only supported
INSERT ... WITH ...
.
#70593
(
Shichao Jin
).
MongoDB integration: support for all MongoDB types, support for WHERE and ORDER BY statements on MongoDB side, restriction for expressions unsupported by MongoDB. Note that the new inegration is disabled by default, to use it, please set
<use_legacy_mongodb_integration>
to
false
in server config.
#63279
(
Kirill Nikiforov
).
A new function
getSettingOrDefault
added to return the default value and avoid exception if a custom setting is not found in the current profile.
#69917
(
Shankar
).
Experimental feature {#experimental-feature-1}
Refreshable materialized views are production ready.
#70550
(
Michael Kolupaev
). Refreshable materialized views are now supported in Replicated databases.
#60669
(
Michael Kolupaev
).
Parallel replicas are moved from experimental to beta. Reworked settings that control the behavior of parallel replicas algorithms. A quick recap: ClickHouse has four different algorithms for parallel reading involving multiple replicas, which is reflected in the setting
parallel_replicas_mode
, the default value for it is
read_tasks
Additionally, the toggle-switch setting
enable_parallel_replicas
has been added.
#63151
(
Alexey Milovidov
), (
Nikita Mikhaylov
).
Support for the
Dynamic
type in most functions by executing them on internal types inside
Dynamic
.
#69691
(
Pavel Kruglov
). | {"source_file": "2024.md"} | [
-0.061646465212106705,
-0.002780021633952856,
0.006565496325492859,
-0.0025627093855291605,
-0.018492063507437706,
-0.025396546348929405,
0.046097803860902786,
0.034872379153966904,
-0.013036290183663368,
-0.043992288410663605,
0.005997455213218927,
0.004128015600144863,
-0.03718459606170654... |
686addc3-eb0a-4dc1-959a-ea388f7c059f | Support for the
Dynamic
type in most functions by executing them on internal types inside
Dynamic
.
#69691
(
Pavel Kruglov
).
Allow to read/write the
JSON
type as a binary string in
RowBinary
format under settings
input_format_binary_read_json_as_string/output_format_binary_write_json_as_string
.
#70288
(
Pavel Kruglov
).
Allow to serialize/deserialize
JSON
column as single String column in the Native format. For output use setting
output_format_native_write_json_as_string
. For input, use serialization version
1
before the column data.
#70312
(
Pavel Kruglov
).
Introduced a special (experimental) mode of a merge selector for MergeTree tables which makes it more aggressive for the partitions that are close to the limit by the number of parts. It is controlled by the
merge_selector_use_blurry_base
MergeTree-level setting.
#70645
(
Nikita Mikhaylov
).
Implement generic ser/de between Avro's
Union
and ClickHouse's
Variant
types. Resolves
#69713
.
#69712
(
Jiří Kozlovský
).
Performance Improvement {#performance-improvement-2}
Refactor
IDisk
and
IObjectStorage
for better performance. Tables from
plain
and
plain_rewritable
object storages will initialize faster.
#68146
(
Alexey Milovidov
,
Julia Kartseva
). Do not call the LIST object storage API when determining if a file or directory exists on the plain rewritable disk, as it can be cost-inefficient.
#70852
(
Julia Kartseva
). Reduce the number of object storage HEAD API requests in the plain_rewritable disk.
#70915
(
Julia Kartseva
).
Added an ability to parse data directly into sparse columns.
#69828
(
Anton Popov
).
Improved performance of parsing formats with high number of missed values (e.g.
JSONEachRow
).
#69875
(
Anton Popov
).
Supports parallel reading of parquet row groups and prefetching of row groups in single-threaded mode.
#69862
(
LiuNeng
).
Support minmax index for
pointInPolygon
.
#62085
(
JackyWoo
).
Use bloom filters when reading Parquet files.
#62966
(
Arthur Passos
).
Lock-free parts rename to avoid INSERT affect SELECT (due to parts lock) (under normal circumstances with
fsync_part_directory
, QPS of SELECT with INSERT in parallel, increased 2x, under heavy load the effect is even bigger). Note, this only includes
ReplicatedMergeTree
for now.
#64955
(
Azat Khuzhin
).
Respect
ttl_only_drop_parts
on
materialize ttl
; only read necessary columns to recalculate TTL and drop parts by replacing them with an empty one.
#65488
(
Andrey Zvonov
).
Optimized thread creation in the ThreadPool to minimize lock contention. Thread creation is now performed outside of the critical section to avoid delays in job scheduling and thread management under high load conditions. This leads to a much more responsive ClickHouse under heavy concurrent load.
#68694
(
filimonov
).
Enable reading
LowCardinality
string columns from
ORC
.
#69481
(
李扬
). | {"source_file": "2024.md"} | [
-0.006007691845297813,
-0.01918909326195717,
-0.02272026054561138,
-0.007870173081755638,
-0.11540493369102478,
-0.07119311392307281,
-0.03679456189274788,
0.12836815416812897,
-0.05470898002386093,
-0.002543551614508033,
-0.015950025990605354,
0.010573038831353188,
-0.029088450595736504,
... |
c0118e0d-0dea-4185-b0ac-7c63a19e8c21 | Enable reading
LowCardinality
string columns from
ORC
.
#69481
(
李扬
).
Use
LowCardinality
for
ProfileEvents
in system logs such as
part_log
,
query_views_log
,
filesystem_cache_log
.
#70152
(
Alexey Milovidov
).
Improve performance of
fromUnixTimestamp
/
toUnixTimestamp
functions.
#71042
(
kevinyhzou
).
Don't disable nonblocking read from page cache for the entire server when reading from a blocking I/O. This was leading to a poorer performance when a single filesystem (e.g., tmpfs) didn't support the
preadv2
syscall while others do.
#70299
(
Antonio Andelic
).
ALTER TABLE .. REPLACE PARTITION
doesn't wait anymore for mutations/merges that happen in other partitions.
#59138
(
Vasily Nemkov
).
Don't do validation when synchronizing ACL from Keeper. It's validating during creation. It shouldn't matter that much, but there are installations with tens of thousands or even more user created, and the unnecessary hash validation can take a long time to finish during server startup (it synchronizes everything from keeper).
#70644
(
Raúl Marín
).
Improvement {#improvement-2}
CREATE TABLE AS
will copy
PRIMARY KEY
,
ORDER BY
, and similar clauses (of
MergeTree
tables).
#69739
(
sakulali
).
Support 64-bit XID in Keeper. It can be enabled with the
use_xid_64
configuration value.
#69908
(
Antonio Andelic
).
Command-line arguments for Bool settings are set to true when no value is provided for the argument (e.g.
clickhouse-client --optimize_aggregation_in_order --query "SELECT 1"
).
#70459
(
davidtsuk
).
Added user-level settings
min_free_disk_bytes_to_perform_insert
and
min_free_disk_perform_to_throw_insert
to prevent insertions on disks that are almost full.
#69755
(
Marco Vilas Boas
).
Embedded documentation for settings will be strictly more detailed and complete than the documentation on the website. This is the first step before making the website documentation always auto-generated from the source code. This has long-standing implications: - it will be guaranteed to have every setting; - there is no chance of having default values obsolete; - we can generate this documentation for each ClickHouse version; - the documentation can be displayed by the server itself even without Internet access. Generate the docs on the website from the source code.
#70289
(
Alexey Milovidov
).
Allow empty needle in the function
replace
, the same behavior with PostgreSQL.
#69918
(
zhanglistar
).
Allow empty needle in functions
replaceRegexp*
.
#70053
(
zhanglistar
).
Symbolic links for tables in the
data/database_name/
directory are created for the actual paths to the table's data, depending on the storage policy, instead of the
store/...
directory on the default disk.
#61777
(
Kirill
).
While parsing an
Enum
field from
JSON
, a string containing an integer will be interpreted as the corresponding
Enum
element. This closes
#65119
.
#66801
(
scanhex12
). | {"source_file": "2024.md"} | [
-0.01848546601831913,
-0.00467138784006238,
-0.047286007553339005,
-0.033726517111063004,
0.08169969916343689,
-0.08750909566879272,
-0.022566771134734154,
0.053191203624010086,
0.04133946821093559,
-0.005550888366997242,
0.0462842658162117,
-0.010303398594260216,
-0.02044500596821308,
-0.... |
e36bb2b5-d771-4d09-9e0d-5ac548b99e25 | While parsing an
Enum
field from
JSON
, a string containing an integer will be interpreted as the corresponding
Enum
element. This closes
#65119
.
#66801
(
scanhex12
).
Allow
TRIM
-ing
LEADING
or
TRAILING
empty string as a no-op. Closes
#67792
.
#68455
(
Peter Nguyen
).
Improve compatibility of
cast(timestamp as String)
with Spark.
#69179
(
Wenzheng Liu
).
Always use the new analyzer to calculate constant expressions when
enable_analyzer
is set to
true
. Support calculation of
executable
table function arguments without using
SELECT
query for constant expressions.
#69292
(
Dmitry Novik
).
Add a setting
enable_secure_identifiers
to disallow identifiers with special characters.
#69411
(
tuanpach
).
Add
show_create_query_identifier_quoting_rule
to define identifier quoting behavior in the
SHOW CREATE TABLE
query result. Possible values: -
user_display
: When the identifiers is a keyword. -
when_necessary
: When the identifiers is one of
{"distinct", "all", "table"}
and when it could lead to ambiguity: column names, dictionary attribute names. -
always
: Always quote identifiers.
#69448
(
tuanpach
).
Improve restoring of access entities' dependencies
#69563
(
Vitaly Baranov
).
If you run
clickhouse-client
or other CLI application, and it starts up slowly due to an overloaded server, and you start typing your query, such as
SELECT
, the previous versions will display the remaining of the terminal echo contents before printing the greetings message, such as
SELECTClickHouse local version 24.10.1.1.
instead of
ClickHouse local version 24.10.1.1.
. Now it is fixed. This closes
#31696
.
#69856
(
Alexey Milovidov
).
Add new column
readonly_duration
to the
system.replicas
table. Needed to be able to distinguish actual readonly replicas from sentinel ones in alerts.
#69871
(
Miсhael Stetsyuk
).
Change the type of
join_output_by_rowlist_perkey_rows_threshold
setting type to unsigned integer.
#69886
(
kevinyhzou
).
Enhance OpenTelemetry span logging to include query settings.
#70011
(
sharathks118
).
Add diagnostic info about higher-order array functions if lambda result type is unexpected.
#70093
(
ttanay
).
Keeper improvement: less locking during cluster changes.
#70275
(
Antonio Andelic
).
Add
WITH IMPLICIT
and
FINAL
keywords to the
SHOW GRANTS
command. Fix a minor bug with implicit grants:
#70094
.
#70293
(
pufit
).
Respect
compatibility
for MergeTree settings. The
compatibility
value is taken from the
default
profile on server startup, and default MergeTree settings are changed accordingly. Further changes of the
compatibility
setting do not affect MergeTree settings.
#70322
(
Nikolai Kochetov
).
Avoid spamming the logs with large HTTP response bodies in case of errors during inter-server communication.
#70487
(
Vladimir Cherkasov
). | {"source_file": "2024.md"} | [
-0.009120265021920204,
0.014072569087147713,
-0.017181064933538437,
0.010309269651770592,
-0.005931355524808168,
-0.014098345302045345,
0.0066475048661231995,
0.052459124475717545,
-0.05116986855864525,
-0.0015252245357260108,
-0.003306708065792918,
-0.0852227509021759,
-0.04553413391113281,... |
8902ce58-40a0-4da2-ad2e-129bef8efed6 | Avoid spamming the logs with large HTTP response bodies in case of errors during inter-server communication.
#70487
(
Vladimir Cherkasov
).
Added a new setting
max_parts_to_move
to control the maximum number of parts that can be moved at once.
#70520
(
Vladimir Cherkasov
).
Limit the frequency of certain log messages.
#70601
(
Alexey Milovidov
).
CHECK TABLE
with
PART
qualifier was incorrectly formatted in the client.
#70660
(
Alexey Milovidov
).
Support writing the column index and the offset index using parquet native writer.
#70669
(
LiuNeng
).
Support parsing
DateTime64
for microsecond and timezone in joda syntax ("joda" is a popular Java library for date and time, and the "joda syntax" is that library's style).
#70737
(
kevinyhzou
).
Changed an approach to figure out if a cloud storage supports
batch delete
or not.
#70786
(
Vitaly Baranov
).
Support for Parquet page v2 in the native reader.
#70807
(
Arthur Passos
).
A check if table has both
storage_policy
and
disk
set. A check if a new storage policy is compatible with an old one when using
disk
setting is added.
#70839
(
Kirill
).
Add
system.s3_queue_settings
and
system.azure_queue_settings
.
#70841
(
Kseniia Sumarokova
).
Functions
base58Encode
and
base58Decode
now accept arguments of type
FixedString
. Example:
SELECT base58Encode(toFixedString('plaintext', 9));
.
#70846
(
Faizan Patel
).
Add the
partition
column to every entry type of the part log. Previously, it was set only for some entries. This closes
#70819
.
#70848
(
Alexey Milovidov
).
Add
MergeStart
and
MutateStart
events into
system.part_log
which helps with merges analysis and visualization.
#70850
(
Alexey Milovidov
).
Add a profile event about the number of merged source parts. It allows the monitoring of the fanout of the merge tree in production.
#70908
(
Alexey Milovidov
).
Background downloads to the filesystem cache were enabled back.
#70929
(
Nikita Taranov
).
Add a new merge selector algorithm, named
Trivial
, for professional usage only. It is worse than the
Simple
merge selector.
#70969
(
Alexey Milovidov
).
Support for atomic
CREATE OR REPLACE VIEW
.
#70536
(
tuanpach
)
Added
strict_once
mode to aggregate function
windowFunnel
to avoid counting one event several times in case it matches multiple conditions, close
#21835
.
#69738
(
Vladimir Cherkasov
).
Bug Fix (user-visible misbehavior in an official stable release) {#bug-fix-user-visible-misbehavior-in-an-official-stable-release-2}
Apply configuration updates in global context object. It fixes issues like
#62308
.
#62944
(
Amos Bird
).
Fix
ReadSettings
not using user set values, because defaults were only used.
#65625
(
Kseniia Sumarokova
).
Fix type mismatch issue in
sumMapFiltered
when using signed arguments.
#58408
(
Chen768959
). | {"source_file": "2024.md"} | [
0.0092286616563797,
0.017838560044765472,
-0.03567688912153244,
-0.05896341800689697,
-0.0054055629298090935,
-0.09157223999500275,
-0.04553333669900894,
0.005351956933736801,
-0.002961377613246441,
0.061001356691122055,
0.003843706799671054,
0.015089670196175575,
-0.01260916143655777,
-0.... |
ea294c69-964a-4de4-869e-9a4a06de889e | Fix type mismatch issue in
sumMapFiltered
when using signed arguments.
#58408
(
Chen768959
).
Fix toHour-like conversion functions' monotonicity when optional time zone argument is passed.
#60264
(
Amos Bird
).
Relax
supportsPrewhere
check for
Merge
tables. This fixes
#61064
. It was hardened unnecessarily in
#60082
.
#61091
(
Amos Bird
).
Fix
use_concurrency_control
setting handling for proper
concurrent_threads_soft_limit_num
limit enforcing. This enables concurrency control by default because previously it was broken.
#61473
(
Sergei Trifonov
).
Fix incorrect
JOIN ON
section optimization in case of
IS NULL
check under any other function (like
NOT
) that may lead to wrong results. Closes
#67915
.
#68049
(
Vladimir Cherkasov
).
Prevent
ALTER
queries that would make the
CREATE
query of tables invalid.
#68574
(
János Benjamin Antal
).
Fix inconsistent AST formatting for
negate
(
-
) and
NOT
functions with tuples and arrays.
#68600
(
Vladimir Cherkasov
).
Fix insertion of incomplete type into
Dynamic
during deserialization. It could lead to
Parameter out of bound
errors.
#69291
(
Pavel Kruglov
).
Zero-copy replication, which is experimental and should not be used in production: fix inf loop after
restore replica
in the replicated merge tree with zero copy.
#69293
(
MikhailBurdukov
).
Return back default value of
processing_threads_num
as number of cpu cores in storage
S3Queue
.
#69384
(
Kseniia Sumarokova
).
Bypass try/catch flow when de/serializing nested repeated protobuf to nested columns (fixes
#41971
).
#69556
(
Eliot Hautefeuille
).
Fix crash during insertion into FixedString column in PostgreSQL engine.
#69584
(
Pavel Kruglov
).
Fix crash when executing
create view t as (with recursive 42 as ttt select ttt);
.
#69676
(
Han Fei
).
Fixed
maxMapState
throwing 'Bad get' if value type is DateTime64.
#69787
(
Michael Kolupaev
).
Fix
getSubcolumn
with
LowCardinality
columns by overriding
useDefaultImplementationForLowCardinalityColumns
to return
true
.
#69831
(
Miсhael Stetsyuk
).
Fix permanent blocked distributed sends if a DROP of distributed table failed.
#69843
(
Azat Khuzhin
).
Fix non-cancellable queries containing WITH FILL with NaN keys. This closes
#69261
.
#69845
(
Alexey Milovidov
).
Fix analyzer default with old compatibility value.
#69895
(
Raúl Marín
).
Don't check dependencies during CREATE OR REPLACE VIEW during DROP of old table. Previously CREATE OR REPLACE query failed when there are dependent tables of the recreated view.
#69907
(
Pavel Kruglov
).
Something for Decimal. Fixes
#69730
.
#69978
(
Arthur Passos
).
Now DEFINER/INVOKER will work with parameterized views.
#69984
(
pufit
).
Fix parsing for view's definers.
#69985
(
pufit
).
Fixed a bug when the timezone could change the result of the query with a
Date
or
Date32
arguments.
#70036
(
Yarik Briukhovetskyi
). | {"source_file": "2024.md"} | [
-0.011886236257851124,
-0.013126786798238754,
0.040893685072660446,
0.02527921088039875,
-0.052980098873376846,
-0.07696584612131119,
-0.016098875552415848,
0.022543970495462418,
-0.06679865717887878,
0.009575219824910164,
-0.011952580884099007,
-0.08458967506885529,
-0.033022440969944,
-0... |
069d336a-71fc-42c7-85a9-36870d93688d | Fix parsing for view's definers.
#69985
(
pufit
).
Fixed a bug when the timezone could change the result of the query with a
Date
or
Date32
arguments.
#70036
(
Yarik Briukhovetskyi
).
Fixes
Block structure mismatch
for queries with nested views and
WHERE
condition. Fixes
#66209
.
#70054
(
Nikolai Kochetov
).
Avoid reusing columns among different named tuples when evaluating
tuple
functions. This fixes
#70022
.
#70103
(
Amos Bird
).
Fix wrong LOGICAL_ERROR when replacing literals in ranges.
#70122
(
Pablo Marcos
).
Check for Nullable(Nothing) type during ALTER TABLE MODIFY COLUMN/QUERY to prevent tables with such data type.
#70123
(
Pavel Kruglov
).
Proper error message for illegal query
JOIN ... ON *
, close
#68650
.
#70124
(
Vladimir Cherkasov
).
Fix wrong result with skipping index.
#70127
(
Raúl Marín
).
Fix data race in ColumnObject/ColumnTuple decompress method that could lead to heap use after free.
#70137
(
Pavel Kruglov
).
Fix possible hung in ALTER COLUMN with Dynamic type.
#70144
(
Pavel Kruglov
).
Now ClickHouse will consider more errors as retriable and will not mark data parts as broken in case of such errors.
#70145
(
alesapin
).
Use correct
max_types
parameter during Dynamic type creation for JSON subcolumn.
#70147
(
Pavel Kruglov
).
Fix the password being displayed in
system.query_log
for users with bcrypt password authentication method.
#70148
(
Nikolay Degterinsky
).
Fix event counter for the native interface (InterfaceNativeSendBytes).
#70153
(
Yakov Olkhovskiy
).
Fix possible crash related to JSON columns.
#70172
(
Pavel Kruglov
).
Fix multiple issues with arrayMin and arrayMax.
#70207
(
Raúl Marín
).
Respect setting allow_simdjson in the JSON type parser.
#70218
(
Pavel Kruglov
).
Fix a null pointer dereference on creating a materialized view with two selects and an
INTERSECT
, e.g.
CREATE MATERIALIZED VIEW v0 AS (SELECT 1) INTERSECT (SELECT 1);
.
#70264
(
Konstantin Bogdanov
).
Don't modify global settings with startup scripts. Previously, changing a setting in a startup script would change it globally.
#70310
(
Antonio Andelic
).
Fix ALTER of
Dynamic
type with reducing max_types parameter that could lead to server crash.
#70328
(
Pavel Kruglov
).
Fix crash when using WITH FILL incorrectly.
#70338
(
Raúl Marín
).
Fix possible use-after-free in
SYSTEM DROP FORMAT SCHEMA CACHE FOR Protobuf
.
#70358
(
Azat Khuzhin
).
Fix crash during GROUP BY JSON sub-object subcolumn.
#70374
(
Pavel Kruglov
).
Don't prefetch parts for vertical merges if part has no rows.
#70452
(
Antonio Andelic
).
Fix crash in WHERE with lambda functions.
#70464
(
Raúl Marín
).
Fix table creation with
CREATE ... AS table_function(...)
with database
Replicated
and unavailable table function source on secondary replica.
#70511
(
Kseniia Sumarokova
). | {"source_file": "2024.md"} | [
-0.007415750529617071,
-0.03331587091088295,
-0.011907141655683517,
0.007839052937924862,
-0.028462151065468788,
0.015894703567028046,
-0.022532938048243523,
0.002231920138001442,
-0.08095856755971909,
0.030585233122110367,
0.0069479565136134624,
-0.09574845433235168,
-0.04297996312379837,
... |
bbfe3c5c-7046-46b6-937b-d5a6d01b36be | Fix table creation with
CREATE ... AS table_function(...)
with database
Replicated
and unavailable table function source on secondary replica.
#70511
(
Kseniia Sumarokova
).
Ignore all output on async insert with
wait_for_async_insert=1
. Closes
#62644
.
#70530
(
Konstantin Bogdanov
).
Ignore frozen_metadata.txt while traversing shadow directory from system.remote_data_paths.
#70590
(
Aleksei Filatov
).
Fix creation of stateful window functions on misaligned memory.
#70631
(
Raúl Marín
).
Fixed rare crashes in
SELECT
-s and merges after adding a column of
Array
type with non-empty default expression.
#70695
(
Anton Popov
).
Insert into table function s3 will respect query settings.
#70696
(
Vladimir Cherkasov
).
Fix infinite recursion when inferring a protobuf schema when skipping unsupported fields is enabled.
#70697
(
Raúl Marín
).
Disable enable_named_columns_in_function_tuple by default.
#70833
(
Raúl Marín
).
Fix S3Queue table engine setting processing_threads_num not being effective in case it was deduced from the number of cpu cores on the server.
#70837
(
Kseniia Sumarokova
).
Normalize named tuple arguments in aggregation states. This fixes
#69732
.
#70853
(
Amos Bird
).
Fix a logical error due to negative zeros in the two-level hash table. This closes
#70973
.
#70979
(
Alexey Milovidov
).
Fix
limit by
,
limit with ties
for distributed and parallel replicas.
#70880
(
Nikita Taranov
).
ClickHouse release 24.9, 2024-09-26 {#a-id249a-clickhouse-release-249-2024-09-26}
Backward Incompatible Change {#backward-incompatible-change-3}
Expressions like
a[b].c
are supported for named tuples, as well as named subscripts from arbitrary expressions, e.g.,
expr().name
. This is useful for processing JSON. This closes
#54965
. In previous versions, an expression of form
expr().name
was parsed as
tupleElement(expr(), name)
, and the query analyzer was searching for a column
name
rather than for the corresponding tuple element; while in the new version, it is changed to
tupleElement(expr(), 'name')
. In most cases, the previous version was not working, but it is possible to imagine a very unusual scenario when this change could lead to incompatibility: if you stored names of tuple elements in a column or an alias, that was named differently than the tuple element's name:
SELECT 'b' AS a, CAST([tuple(123)] AS 'Array(Tuple(b UInt8))') AS t, t[1].a
. It is very unlikely that you used such queries, but we still have to mark this change as potentially backward incompatible.
#68435
(
Alexey Milovidov
). | {"source_file": "2024.md"} | [
-0.0012914930703118443,
-0.10766676068305969,
-0.03261386230587959,
0.04365351423621178,
0.0005442454130388796,
-0.08322092145681381,
-0.06568185985088348,
0.03423565626144409,
-0.006443383637815714,
0.09070064127445221,
0.03646400198340416,
-0.034853506833314896,
-0.006512615364044905,
-0... |
3c5ee208-f2eb-4a7a-9a36-706fa240760a | When the setting
print_pretty_type_names
is enabled, it will print
Tuple
data type in a pretty form in
SHOW CREATE TABLE
statements,
formatQuery
function, and in the interactive mode in
clickhouse-client
and
clickhouse-local
. In previous versions, this setting was only applied to
DESCRIBE
queries and
toTypeName
. This closes
#65753
.
#68492
(
Alexey Milovidov
).
Do not allow explicitly specifying UUID when creating a table in
Replicated
databases. Also, do not allow explicitly specifying Keeper path and replica name for *MergeTree tables in Replicated databases. It introduces a new setting
database_replicated_allow_explicit_uuid
and changes the type of
database_replicated_allow_replicated_engine_arguments
from Bool to UInt64
#66104
(
Alexander Tokmakov
).
New Feature {#new-feature-3}
Allow a user to have multiple authentication methods instead of only one. Allow authentication methods to be reset to most recently added method. If you want to run instances on 24.8 and one on 24.9 for some time, it's better to set
max_authentication_methods_per_user
= 1 for that period to avoid potential incompatibilities.
#65277
(
Arthur Passos
).
Add support for
ATTACH PARTITION ALL FROM
.
#61987
(
Kirill Nikiforov
).
Add the
input_format_json_empty_as_default
setting which, when enabled, treats empty fields in JSON inputs as default values. Closes
#59339
.
#66782
(
Alexis Arnaud
).
Added functions
overlay
and
overlayUTF8
which replace parts of a string by another string. Example:
SELECT overlay('Hello New York', 'Jersey', 11)
returns
Hello New Jersey
.
#66933
(
李扬
).
Add support for lightweight deletes in partition
DELETE FROM [db.]table [ON CLUSTER cluster] [IN PARTITION partition_expr] WHERE expr;
#67805
(
sunny
).
Implemented comparison for
Interval
data type values of different domains (such as seconds and minutes) so they are converting now to the least supertype.
#68057
(
Yarik Briukhovetskyi
).
Add
create_if_not_exists
setting to default to
IF NOT EXISTS
behavior during CREATE statements.
#68164
(
Peter Nguyen
).
Makes it possible to read
Iceberg
tables in Azure and locally.
#68210
(
Daniil Ivanik
).
Query cache entries can now be dropped by tag. For example, the query cache entry created by
SELECT 1 SETTINGS use_query_cache = true, query_cache_tag = 'abc'
can now be dropped by
SYSTEM DROP QUERY CACHE TAG 'abc'
.
#68477
(
Michał Tabaszewski
).
Add storage encryption for named collections.
#68615
(
Pablo Marcos
).
Add virtual column
_headers
for the
URL
table engine. Closes
#65026
.
#68867
(
flynn
).
Add
system.projections
table to track available projections.
#68901
(
Jordi Villar
).
Add new function
arrayZipUnaligned
for spark compatibility (which is named
arrays_zip
in Spark), which allowed unaligned arrays based on original
arrayZip
.
#69030
(
李扬
). | {"source_file": "2024.md"} | [
0.009651861153542995,
-0.07900545001029968,
-0.007493928540498018,
0.03545461222529411,
-0.06482662260532379,
-0.0700170174241066,
-0.021533755585551262,
-0.012439596466720104,
-0.08412294089794159,
0.023293470963835716,
0.018302924931049347,
-0.029593536630272865,
0.07848918437957764,
-0.... |
0dddc007-99d4-4bd9-8a5f-e6b42db997ab | Add new function
arrayZipUnaligned
for spark compatibility (which is named
arrays_zip
in Spark), which allowed unaligned arrays based on original
arrayZip
.
#69030
(
李扬
).
Added
cp
/
mv
commands for the keeper client command line application which atomically copies/moves node.
#69034
(
Mikhail Artemenko
).
Adds argument
scale
(default:
true
) to function
arrayAUC
which allows to skip the normalization step (issue
#69609
).
#69717
(
gabrielmcg44
).
Experimental feature {#experimental-feature-2}
Adds a setting
input_format_try_infer_variants
which allows
Variant
type to be inferred during schema inference for text formats when there is more than one possible type for column/array elements.
#63798
(
Shaun Struwig
).
Add aggregate functions
distinctDynamicTypes
/
distinctJSONPaths
/
distinctJSONPathsAndTypes
for better introspection of JSON column type content.
#68463
(
Kruglov Pavel
).
New algorithm to determine the unit of marks distribution between parallel replicas by a consistent hash. Different numbers of marks chosen for different read patterns to improve performance.
#68424
(
Nikita Taranov
).
Previously the algorithmic complexity of part deduplication logic in parallel replica announcement handling was O(n^2) which could take noticeable time for tables with many part (or partitions). This change makes the complexity O(n*log(n)).
#69596
(
Alexander Gololobov
).
Refreshable materialized view improvements: append mode (
... REFRESH EVERY 1 MINUTE APPEND ...
) to add rows to existing table instead of overwriting the whole table, retries (disabled by default, configured in SETTINGS section of the query),
SYSTEM WAIT VIEW <name>
query that waits for the currently running refresh, some fixes.
#58934
(
Michael Kolupaev
).
Added
min_max
as a new type of (experimental) statistics. It supports estimating range predicates over numeric columns, e.g.
x < 100
.
#67013
(
JackyWoo
).
Improve castOrDefault from Variant/Dynamic columns so it works when inner types are not convertible at all.
#67150
(
Kruglov Pavel
).
Replication of subset of columns is now available through MaterializedPostgreSQL. Closes
#33748
.
#69092
(
Kruglov Kirill
).
Performance Improvement {#performance-improvement-3}
Implemented reading of required files only for Hive partitioning.
#68963
(
Yarik Briukhovetskyi
).
Improve the JOIN performance by rearranging the right table by keys while the table keys are dense in the LEFT or INNER hash joins.
#60341
(
kevinyhzou
).
Improve ALL JOIN performance by appending the list of rows lazily.
#63677
(
kevinyhzou
).
Load filesystem cache metadata asynchronously during the boot process, in order to make restarts faster (controlled by setting
load_metadata_asynchronously
).
#65736
(
Daniel Pozo Escalona
).
Functions
array
and
map
were optimized to process certain common cases much faster.
#67707
(
李扬
). | {"source_file": "2024.md"} | [
-0.01847945898771286,
-0.01019547414034605,
-0.06724420934915543,
-0.0030623171478509903,
0.023689113557338715,
-0.02214757539331913,
-0.030944203957915306,
-0.02253425307571888,
-0.02835685946047306,
0.009827448055148125,
-0.029486501589417458,
0.01657872460782528,
0.0009966808138415217,
... |
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