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a9d8b1b2-14b5-4821-93ae-1576f2453add
concurrent_threads_soft_limit_num and concurrent_threads_soft_limit_num_ratio_to_cores could be changed w/o restart of a server. #73713 ( Sergei Trifonov ). Add support for extended numeric types ( Decimal , big integers) in formatReadable functions. #73765 ( Raúl Marín ). Support TLS for Postgres wire pro...
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b4da3f13-b54b-46da-a967-5029e7d935bc
Add the IsServerShuttingDown metric, which is needed to trigger an alert when the server shutdown takes too much time. #74429 ( Miсhael Stetsyuk ). Added Iceberg tables names to EXPLAIN. #74485 ( alekseev-maksim ). Provide a better error message when using RECURSIVE CTE with the old analyzer. #74523 ( Raúl ...
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2abeb4a8-75b3-4fa6-ad6b-4afc4ad00b29
Propagate format settings to NativeWriter in TCPHandler, so settings like output_format_native_write_json_as_string are applied correctly. #73179 ( Pavel Kruglov ). Fix a crash in StorageObjectStorageQueue. #73274 ( Kseniia Sumarokova ). Fix rare crash in refreshable materialized view during server shutdown. ...
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d31d7b9d-569a-4afb-bd8c-2fea4a9c5280
Fix possible data inconsistency in Dynamic column. Fixes possible logical error Nested columns sizes are inconsistent with local_discriminators column size . #73644 ( Pavel Kruglov ). Fixed NOT_FOUND_COLUMN_IN_BLOCK in queries with FINAL and SAMPLE . Fixed incorrect result in selects with FINAL from Collap...
{"source_file": "index.md"}
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6721ce8b-e7b4-4931-a2ec-dfad85171ecb
Fixes issue when after #73095 port can be present in the forwarded_for field, which leads to inability to resolve host name with port included. #74116 ( Yakov Olkhovskiy ). Fixed incorrect formatting of ALTER TABLE (DROP STATISTICS ...) (DROP STATISTICS ...) . #74126 ( Han Fei ). Fix for issue #66112 . #74...
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494a3007-acc0-4d42-8532-24f64c55f132
The hasColumnInTable function doesn't account for alias columns. Fix it to also work for alias columns. #74841 ( Bharat Nallan ). Fix FILE_DOESNT_EXIST error occurring during data parts merge for a table with an empty column in Azure Blob Storage. #74892 ( Julia Kartseva ). Fix projection column name when joi...
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d5535b09-247d-47a6-b200-194137d2d995
slug: /whats-new/changelog/2022 sidebar_position: 5 sidebar_label: '2022' title: '2022 Changelog' description: 'Changelog for 2022' keywords: ['ClickHouse 2022', 'changelog 2022', 'release notes', 'version history', 'feature updates'] doc_type: 'changelog' ClickHouse release 22.12, 2022-12-15 {#a-id2212a-clickhous...
{"source_file": "2022.md"}
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2eb552fe-46f3-4691-84f7-3578b09c67be
Add grace_hash JOIN algorithm, it can be enabled with SET join_algorithm = 'grace_hash' . #38191 ( BigRedEye , Vladimir C ). Allow configuring password complexity rules and checks for creating and changing users. #43719 ( Nikolay Degterinsky ). Mask sensitive information in logs; mask secret parts in the ou...
{"source_file": "2022.md"}
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b70a487e-a49b-4460-9596-26260926d70a
Add support for cosine distance for the experimental Annoy (vector similarity search) index. #42778 ( Filatenkov Artur ). Add CREATE / ALTER / DROP NAMED COLLECTION queries. #43252 ( Kseniia Sumarokova ). This feature is under development and the queries are not effective as of version 22.12. This changelog ent...
{"source_file": "2022.md"}
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ef49c695-8c27-4976-8ef0-6edcd31c7e69
Improvement {#improvement} Implement referential dependencies and use them to create tables in the correct order while restoring from a backup. #43834 ( Vitaly Baranov ). Substitute UDFs in CREATE query to avoid failures during loading at startup. Additionally, UDFs can now be used as DEFAULT expressions fo...
{"source_file": "2022.md"}
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278cc895-2b42-41a6-a813-04bb7cb1ebc8
Added client option to display the number of locally processed rows in non-interactive mode ( --print-num-processed-rows ). #43407 ( jh0x ). Implement aggregation-in-order optimization on top of a query plan. It is enabled by default (but works only together with optimize_aggregation_in_order , which is disabled...
{"source_file": "2022.md"}
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21caa5e5-fba1-4d03-9db7-2f388565f6ae
Fix s3 support for the ? wildcard. Closes #42731 . #43253 ( chen ). Fix functions arrayFirstOrNull and arrayLastOrNull or null when the array contains Nullable elements. #43274 ( Duc Canh Le ). Fix incorrect UserTimeMicroseconds / SystemTimeMicroseconds accounting related to Kafka tables. #42791 ...
{"source_file": "2022.md"}
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405478ec-dca7-419c-9d70-cbf921a81ccc
Query with DISTINCT + LIMIT BY + LIMIT can return fewer rows than expected. Fixes #43377 . #43410 ( Igor Nikonov ). Fix sumMap for Nullable(Decimal(...)) . #43414 ( Azat Khuzhin ). Fix date_diff for hour/minute on macOS. Close #42742 . #43466 ( zzsmdfj ). Fix incorrect memory accounting because...
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33faf68e-04a4-42ca-a7aa-0f84dfa16cd3
JSONExtract family of functions will now attempt to coerce to the requested type. #41502 ( Márcio Martins ). New Feature {#new-feature-1} Adds support for retries during INSERTs into ReplicatedMergeTree when a session with ClickHouse Keeper is lost. Apart from fault tolerance, it aims to provide better user ...
{"source_file": "2022.md"}
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e3b93bb8-3fc1-4c57-a6b1-b7f95b172390
Speed up AND and OR operators when they are sequenced. #42214 ( Zhiguo Zhou ). Support parallel parsing for LineAsString input format. This improves performance just slightly. This closes #42502 . #42780 ( Kruglov Pavel ). ClickHouse Keeper performance improvement: improve commit performance for cases when m...
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0ce9891c-d24d-448f-a92f-413540f4b97a
Add support for FixedString input to base64 coding functions. #42285 ( ltrk2 ). Add columns bytes_on_disk and path to system.detached_parts . Closes #42264 . #42303 ( chen ). Improve using structure from insertion table in table functions, now setting use_structure_from_insertion_table_in_table_functio...
{"source_file": "2022.md"}
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e5b58e89-c228-4f7b-9afe-44fcb7f5a2f8
Better usability for Dashboard on changes #42872 ( Vladimir C ). Build/Testing/Packaging Improvement {#buildtestingpackaging-improvement-1} Run SQLancer for each pull request and commit to master. SQLancer is an OpenSource fuzzer that focuses on automatic detection of logical bugs. #42397 ( Ilya Yatsishin...
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ed526b80-0438-443a-823d-0b42f2c32aa2
(U)Int128 and (U)Int256 values were correctly checked in PREWHERE . #42605 ( Antonio Andelic ). Fix a bug in functions parser that could have led to a segmentation fault. #42724 ( Nikolay Degterinsky ). Fix the locking in truncate table . #42728 ( flynn ). Fix possible crash in web disks when file do...
{"source_file": "2022.md"}
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6db403bb-9544-42ed-9cfa-ec88c003f721
ClickHouse release 22.10, 2022-10-25 {#a-id2210a-clickhouse-release-2210-2022-10-25} Backward Incompatible Change {#backward-incompatible-change-1} Rename cache commands: show caches -> show filesystem caches , describe cache -> describe filesystem cache . #41508 ( Kseniia Sumarokova ). Remove support f...
{"source_file": "2022.md"}
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77c3ce68-9504-4f47-8357-013e376afadc
Adds Morton Coding (ZCurve) encode/decode functions. #41753 ( Constantine Peresypkin ). Add support for SET setting_name = DEFAULT . #42187 ( Filatenkov Artur ). Experimental Feature {#experimental-feature-2} Added new infrastructure for query analysis and planning under the allow_experimental_analyzer ...
{"source_file": "2022.md"}
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dc6f843b-551c-4b15-9082-5fcef0af5809
Embedded Keeper will always start in the background allowing ClickHouse to start without achieving quorum. #40991 ( Antonio Andelic ). Made reestablishing a new connection to ZooKeeper more reactive in case of expiration of the previous one. Previously there was a task which spawns every minute by default and thus ...
{"source_file": "2022.md"}
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3c2f1d28-171e-4994-a3ae-0379ce2fc2aa
Only allow clients connecting to a secure server with an invalid certificate only to proceed with the '--accept-certificate' flag. #41743 ( Yakov Olkhovskiy ). Add function tryBase58Decode , similar to the existing function tryBase64Decode . #41824 ( Robert Schulze ). Improve feedback when replacing partition...
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017a83e8-7f42-4924-b485-8665a0b74019
Allow to use Date32 arguments for dateName function. #42554 ( Roman Vasin ). Now filters with NULL literals will be used during index analysis. #34063 . #41842 ( Amos Bird ). Merge parts if every part in the range is older than a certain threshold. The threshold can be set by using min_age_to_force_merge_...
{"source_file": "2022.md"}
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b397d26f-ed65-4058-b766-ae01f74ca425
Mutations were not cancelled properly on server shutdown or SYSTEM STOP MERGES query and cancellation might take long time, it's fixed. #41699 ( Alexander Tokmakov ). Fix wrong result of queries with ORDER BY or GROUP BY by columns from prefix of sorting key, wrapped into monotonic functions, with enable "rea...
{"source_file": "2022.md"}
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206a01d2-d622-425b-96a9-b5dd4b20344f
Fix write into azure_blob_storage . Partially closes #41754 . #42034 ( Kseniia Sumarokova ). Fix the bzip2 decoding issue for specific bzip2 files. #42046 ( Nikolay Degterinsky ). Fix SQL function toLastDayOfMonth with setting "enable_extended_results_for_datetime_functions = 1" at the beginning of the ...
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6e42b735-6ed9-4425-b5e8-1b951e390929
This reverts #40217 which introduced a regression in date/time functions. #42367 ( Alexey Milovidov ). Fix assert cast in join on falsy condition, Close #42380 . #42407 ( Vladimir C ). Fix buffer overflow in the processing of Decimal data types. This closes #42451 . #42465 ( Alexey Milovidov ). Aggregat...
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55a30880-60b4-486f-ac85-5e494c4df12b
Added new settings constraint writability kind changeable_in_readonly . #40631 ( Sergei Trifonov ). Add support for INTERSECT DISTINCT and EXCEPT DISTINCT . #40792 ( Duc Canh Le ). Add new input/output format JSONObjectEachRow - Support import for formats JSON/JSONCompact/JSONColumnsWithMetadata . Add ne...
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a099092a-f9ab-4873-ac90-0d8a6baa4fb0
Account max_block_size value while producing single-level aggregation results. Allows to execute following query plan steps using more threads. #39138 ( Nikita Taranov ). Software prefetching is used in aggregation to speed up operations with hash tables. Controlled by the setting enable_software_prefetch_in_agg...
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4fb6919e-26d0-4955-a5b0-77ac9a30848f
For security and stability reasons, CatBoost models are no longer evaluated within the ClickHouse server. Instead, the evaluation is now done in the clickhouse-library-bridge, a separate process that loads the catboost library and communicates with the server process via HTTP. Function modelEvaluate() was replaced by...
{"source_file": "2022.md"}
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20336203-e182-4012-a8a8-2d6d9ac27160
Better support for nested data structures in Parquet format #40485 ( Arthur Passos ). Support reading Array(Record) into flatten nested table in Avro. #40534 ( Kruglov Pavel ). Add read-only support for EmbeddedRocksDB . #40543 ( Lloyd-Pottiger ). Validate the compression method parameter of URL table engi...
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cfc2996b-6ba7-4f33-b8d9-f3fcffdfcae3
Build/Testing/Packaging Improvement {#buildtestingpackaging-improvement-3} Enforce documentation for every setting. #40644 ( Alexey Milovidov ). Enforce documentation for every current metric. #40645 ( Alexey Milovidov ). Enforce documentation for every profile event counter. Write the documentation where i...
{"source_file": "2022.md"}
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49378672-214c-455a-bebb-2103b56c6d5b
Malicious data in Native format might cause a crash. #41441 ( Alexey Milovidov ). The aggregate function categorialInformationValue was having incorrectly defined properties, which might cause a null pointer dereferencing at runtime. This closes #41443 . #41449 ( Alexey Milovidov ). Writing data in Apache O...
{"source_file": "2022.md"}
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9446b43d-7195-4f4d-a967-547df1658306
Fix possible race in filesystem cache. #40586 ( Kseniia Sumarokova ). Removed skipping of mutations in unaffected partitions of MergeTree tables, because this feature never worked correctly and might cause resurrection of finished mutations. #40589 ( Alexander Tokmakov ). The clickhouse server will crash if w...
{"source_file": "2022.md"}
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81a93b62-1a9d-41a1-85f0-04e4247c6702
A fix for ClickHouse Keeper: correctly compare paths in write requests to Keeper internal system node paths. #40918 ( Antonio Andelic ). Fix deadlock in WriteBufferFromS3. #40943 ( Kseniia Sumarokova ). Fix access rights for DESCRIBE TABLE url() and some other DESCRIBE TABLE <table_function>() . #40975 ( V...
{"source_file": "2022.md"}
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94725d6f-2f91-440e-8e1b-be8fdda6319e
Add column type check before UUID insertion in MsgPack format. #41309 ( Kruglov Pavel ). Fix possible crash after inserting asynchronously (with enabled setting async_insert ) malformed data to columns of type Object . It could happen, if JSONs in all batches of async inserts were invalid and could not be parsed....
{"source_file": "2022.md"}
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a811f2d5-53de-4819-aab4-47455712f3cd
Now, all relevant dictionary sources respect remote_url_allow_hosts setting. It was already done for HTTP, Cassandra, Redis. Added ClickHouse, MongoDB, MySQL, PostgreSQL. Host is checked only for dictionaries created from DDL. #39184 ( Nikolai Kochetov ). Prebuilt ClickHouse x86 binaries now require support for A...
{"source_file": "2022.md"}
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e656a8d9-cc1d-4d3c-a7b8-4210dac94535
Add ability to specify settings for an executable() table function. #39681 ( Constantine Peresypkin ). Implemented automatic conversion of database engine from Ordinary to Atomic . Create empty convert_ordinary_to_atomic file in flags directory and all Ordinary databases will be converted automatically o...
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7256b63d-6156-4c12-ae6a-46a5464c7acd
DISTINCT in order with ORDER BY : Deduce way to sort based on input stream sort description. Skip sorting if input stream is already sorted. #38719 ( Igor Nikonov ). Improve memory usage (significantly) and query execution time + use DistinctSortedChunkTransform for final distinct when DISTINCT columns match O...
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08493026-a41e-4856-9be0-aef0c8ae324d
Improved structure of DDL query result table for Replicated database (separate columns with shard and replica name, more clear status) - CREATE TABLE ... ON CLUSTER queries can be normalized on initiator first if distributed_ddl_entry_format_version is set to 3 (default value). It means that ON CLUSTER queries ...
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385fbc5b-d910-4634-a18d-497d654a7879
Change the prefix size of AggregateFunctionDistinct to make sure nested function data memory segment is aligned. #39696 ( Pxl ). Properly escape credentials passed to the clickhouse-diagnostic tool. #39707 ( Dale McDiarmid ). ClickHouse Keeper improvement: create a snapshot on exit. It can be controlled with ...
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aebb8db6-228b-4b68-a1ca-eef0a7078dce
Avoid continuously growing memory consumption of pattern cache when using functions multi(Fuzzy)Match(Any|AllIndices|AnyIndex)(). #40264 ( Robert Schulze ). Build/Testing/Packaging Improvement {#buildtestingpackaging-improvement-4} ClickFiddle : A new tool for testing ClickHouse versions in read/write mode ( ...
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07d0ca06-96aa-43bc-a35c-efd06dca15cb
Docker: Now entrypoint.sh in docker image creates and executes chown for all folders it found in config for multidisk setup #17717 . #39121 ( Nikita Mikhaylov ). Bug Fix {#bug-fix-1} Fix possible segfault in CapnProto input format. This bug was found and send through ClickHouse bug-bounty program by kio...
{"source_file": "2022.md"}
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5b147082-bdfb-421f-9cf1-38923a772337
A bug in Apache Avro library: fix data race and possible heap-buffer-overflow in Avro format. Closes #39094 Closes #33652 . #39498 ( Kruglov Pavel ). Fix rare bug in asynchronous reading (with setting local_filesystem_read_method='pread_threadpool' ) with enabled O_DIRECT (enabled by setting min_bytes_to_use...
{"source_file": "2022.md"}
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05cee751-a6db-45b4-a107-147f11b3053f
Fix EmbeddedRocksDB tables filtering by key using params. #39757 ( Antonio Andelic ). Fix error Invalid number of columns in chunk pushed to OutputPort which was caused by ARRAY JOIN optimization. Fixes #39164 . #39799 ( Nikolai Kochetov ). A workaround for a bug in Linux kernel. Fix CANNOT_READ_ALL_DATA ...
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2e2f62e0-5e85-4bcb-be9d-edac2a477f7d
Disable format_csv_allow_single_quotes by default. See #37096 . ( Kruglov Pavel ). Ordinary database engine and old storage definition syntax for *MergeTree tables are deprecated. By default it's not possible to create new databases with Ordinary engine. If system database has Ordinary engine it will be a...
{"source_file": "2022.md"}
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2ae1d613-8dde-4488-a043-8a5ac9cb255b
Added options to limit IO operations with remote storage: max_remote_read_network_bandwidth_for_server and max_remote_write_network_bandwidth_for_server . #39095 ( Sergei Trifonov ). Add group_by_use_nulls setting to make aggregation key columns nullable in the case of ROLLUP, CUBE and GROUPING SETS. Closes #...
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52e3b983-e759-4df4-90f9-675d5a69c85d
Migrate from the Intel hyperscan library to vectorscan, this speeds up many string matching on non-x86 platforms. #38171 ( Robert Schulze ). Increased parallelism of query plan steps executed after aggregation. #38295 ( Nikita Taranov ). Improve performance of insertion to columns of type JSON . #38320 ( Ant...
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ad460221-b40c-4487-91ec-9ce196148d77
Add DESCRIBE CACHE query to show cache settings from config. Add SHOW CACHES query to show available filesystem caches list. #38279 ( Kseniia Sumarokova ). Add access check for system drop filesystem cache . Support ON CLUSTER. #38319 ( Kseniia Sumarokova ). Fix PostgreSQL database engine incompatibility o...
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6d1b8302-ac27-45d7-9785-676afe082365
Allow to specify globs * or {expr1, expr2, expr3} inside a key for clickhouse-extract-from-config tool. #38966 ( Nikita Mikhaylov ). clearOldLogs: Don't report KEEPER_EXCEPTION on concurrent deletes. #39016 ( Raúl Marín ). clickhouse-keeper improvement: persist meta-information about keeper servers to disk....
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187cae14-28ca-4057-bd94-722d07106328
Fixed crash caused by data race in storage Hive (integration table engine). #38887 ( lgbo ). Fix crash when executing GRANT ALL ON . with ON CLUSTER. It was broken in https://github.com/ClickHouse/ClickHouse/pull/35767. This closes #38618 . #38674 ( Vitaly Baranov ). Correct glob expansion in case of {0.....
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8ea30735-67c0-49f9-93cb-9b4251a1dbe6
Fixed error Not found column Type in block in selects with PREWHERE and read-in-order optimizations. #39157 ( Yakov Olkhovskiy ). Fix extremely rare race condition in during hardlinks for remote filesystem. The only way to reproduce it is concurrent run of backups. #39190 ( alesapin ). (zero-copy replicatio...
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26495a1d-9c26-4f6d-bce3-a4155d42df08
Fix INSERT into Distributed hung due to ProfileEvents. #38307 ( Azat Khuzhin ). Fix retries in PostgreSQL engine. #38310 ( Kseniia Sumarokova ). Fix optimization in PartialSortingTransform (SIGSEGV and possible incorrect result). #38324 ( Azat Khuzhin ). Fix RabbitMQ with formats based on PeekableReadBuffer...
{"source_file": "2022.md"}
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916ea7b6-2e6a-4583-9b17-de4a54471cd3
LIKE patterns with trailing escape symbol ('\') are now disallowed (as mandated by the SQL standard). #37764 ( Robert Schulze ). If you run different ClickHouse versions on a cluster with AArch64 CPU or mix AArch64 and amd64 on a cluster, and use distributed queries with GROUP BY multiple keys of fixed-size type th...
{"source_file": "2022.md"}
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4f9a62c6-fb49-4601-83c3-53476e351b0c
Added SYSTEM UNFREEZE query that deletes the whole backup regardless if the corresponding table is deleted or not. #36424 ( Vadim Volodin ). Experimental Feature {#experimental-feature-5} Enables POPULATE for WINDOW VIEW . #36945 ( vxider ). ALTER TABLE ... MODIFY QUERY support for WINDOW VIEW . #...
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2df9a9a4-fe46-4819-8a0d-ff3ad00433c6
Improve sort performance by single column. #37195 ( Maksim Kita ). Improve performance of single column sorting using sorting queue specializations. #37990 ( Maksim Kita ). Improved performance on array norm and distance functions 2x-4x times. #37394 ( Alexander Gololobov ). Improve performance of number co...
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7e0d01b6-55bb-48c6-84cd-70251108c990
Client will try every IP address returned by DNS resolution until successful connection. #37273 ( Yakov Olkhovskiy ). Allow to use String type instead of Binary in Arrow/Parquet/ORC formats. This PR introduces 3 new settings for it: output_format_arrow_string_as_string , output_format_parquet_string_as_string , ...
{"source_file": "2022.md"}
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9a1d4f1f-d27f-4a3e-8709-b3227363fdbe
Now if a shard has local replica we create a local plan and a plan to read from all remote replicas. They have shared initiator which coordinates reading. #37204 ( Nikita Mikhaylov ). Do no longer abort server startup if configuration option "mark_cache_size" is not explicitly set. #37326 ( Robert Schulze ). Al...
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1a8d8caf-ebd3-41c0-9220-339a096dae3b
clickhouse-keeper: store only unique session IDs for watches. #37641 ( Azat Khuzhin ). Fix possible "Cannot write to finalized buffer". #37645 ( Azat Khuzhin ). Add setting support_batch_delete for DiskS3 to disable multiobject delete calls, which Google Cloud Storage doesn't support. #37659 ( Fred Wulff ...
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bb980755-09a4-45f8-b004-469e05a2463b
Fix inserting defaults for missing values in columnar formats. Previously missing columns were filled with defaults for types, not for columns. #37253 ( Kruglov Pavel ). (experimental Object type) Fix some cases of insertion nested arrays to columns of type Object . #37305 ( Anton Popov ). Fix unexpected error...
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6bd8ea00-32b6-48cb-8ec7-af75548561e9
Fix formatting of Nullable arguments for executable user defined functions. Closes #35897 . #37711 ( Maksim Kita ). Fix optimization enabled by setting optimize_monotonous_functions_in_order_by in distributed queries. Fixes #36037 . #37724 ( Anton Popov ). Fix possible logical error: Invalid Field get from...
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9e33fb77-617c-44f7-84d5-15df442c769e
Fix possible heap-use-after-free error when reading system.projection_parts and system.projection_parts_columns . This fixes #37184 . #37185 ( Amos Bird ). Fixed DateTime64 fractional seconds behavior prior to Unix epoch. #37697 ( Andrey Zvonov ). #37039 ( 李扬 ). ClickHouse release 22.5, 2022-05-19 {#a-i...
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788c560e-797d-4398-a216-af1c7ff48f7b
Implemented L1, L2, Linf, Cosine distance functions for arrays and L1, L2, Linf norm functions for arrays. #37033 ( qieqieplus ). Caveat: the functions will be renamed. Improve the WATCH query in WindowView: 1. Reduce the latency of providing query results by calling the fire_condition signal. 2. Makes the can...
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0065cca1-be94-4021-927c-d73c04fbb598
Apply parallel parsing for input format HiveText , which can speed up HiveText parsing by 2x when reading local file. #36650 ( 李扬 ). The default HashJoin is not thread safe for inserting right table's rows and run it in a single thread. When the right table is large, the join process is too slow with low cpu uti...
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31c90726-2b4a-47c6-be52-d411b8b677cc
Fix progress indication for INSERT SELECT in clickhouse-local for any query and for file progress in client, more correct file progress. #37075 ( Kseniia Sumarokova ). Fix bug which can lead to forgotten outdated parts in MergeTree table engines family in case of filesystem failures during parts removal. Before...
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ca4ad428-8613-417a-9eb0-1ab074794875
Improve schema inference for JSON objects. #36207 ( Kruglov Pavel ). Refactor code around schema inference with globs. Try next file from glob only if it makes sense (previously we tried next file in case of any error). Also it fixes #36317 . #36205 ( Kruglov Pavel ). Add a separate CLUSTER grant (and acces...
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7d9fbdba-cf4c-4629-a46d-364974e23d72
Limit PowerPC code generation to Power8 for better compatibility. This closes #36025 . #36529 ( Alexey Milovidov ). Simplify performance test. This will give a chance for us to use it. #36769 ( Alexey Milovidov ). Fail performance comparison on errors in the report. #34797 ( Mikhail f. Shiryaev ). Add ZSTD...
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4e35c139-ae72-401c-a098-7ecb6edea294
Experimental feature: Fix in-order GROUP BY ( optimize_aggregation_in_order=1 ) with *Array ( groupArrayArray /...) aggregate functions. #37046 ( Azat Khuzhin ). Fix LowCardinality->ArrowDictionary invalid output when type of indexes is not UInt8. Closes #36832 . #37043 ( Kruglov Pavel ). Fixed problem wit...
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bd15f809-9aa8-4de5-aa6b-6a6aa6d48318
Fix server reload on port change (do not wait for current connections from query context). #36700 ( Azat Khuzhin ). Experimental feature: In the previous PR , I found that testing (stateless tests, flaky check (address, actions)) is timeout. Moreover, testing locally can also trigger unstable system deadlocks. Thi...
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57b2a10a-24df-48b6-970f-2238d291c75f
Experimental feature: Fix insertion of complex JSONs with nested arrays to columns of type Object . #36077 ( Anton Popov ). Fix ALTER DROP COLUMN of nested column with compact parts (i.e. ALTER TABLE x DROP COLUMN n , when there is column n.d ). #35797 ( Azat Khuzhin ). Fix substring function range error len...
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369f021a-8c82-4b38-884b-b9c2fe844ec9
Add toLastDayOfMonth function which rounds up a date or date with time to the last day of the month. #33501 . #34394 ( Habibullah Oladepo ). Added load balancing setting for [Zoo]Keeper client. Closes #29617 . #30325 ( 小路 ). Add a new kind of row policies named simple . Before this PR we had two kinds or r...
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65211d15-840d-4cbb-a4a3-4599b78711eb
Multiple changes to improve ASOF JOIN performance (1.2 - 1.6x as fast). It also adds support to use big integers. #34733 ( Raúl Marín ). Improve performance of ASOF JOIN if key is native integer. #35525 ( Maksim Kita ). Parallelization of multipart upload into S3 storage. #35343 ( Sergei Trifonov ). URL sto...
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f77c66db-475f-4479-bc55-e060f6e069e5
Added support for schema inference for hdfsCluster . #35602 ( Nikita Mikhaylov ). Add new setting input_format_json_read_bools_as_numbers that allows to infer and parse bools as numbers in JSON input formats. It's enabled by default. Suggested by @alexey-milovidov. #35735 ( Kruglov Pavel ). Improve columns o...
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0c0e4293-b571-411e-9dab-0c6dc4aede39
Deduce absolute hdfs config path. #35572 ( 李扬 ). Improve pasting performance and compatibility of clickhouse-client. This helps #35501 . #35541 ( Amos Bird ). It was possible to get stack overflow in distributed queries if one of the settings async_socket_for_remote and use_hedged_requests is enabled while...
{"source_file": "2022.md"}
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edfe7b31-2b9f-47bc-b3d1-48cffce16f74
Add next batch of randomization settings in functional tests. #35047 ( Kruglov Pavel ). Add backward compatibility check in stress test. Closes #25088 . #27928 ( Kruglov Pavel ). Migrate package building to nfpm - Deprecate release script in favor of packages/build - Build everything in clickhouse/binary...
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202ed14e-c2ad-4a0f-b124-6722708c5210
Fix inserts to columns of type Object in case when there is data related to several partitions in insert query. #35806 ( Anton Popov ). Fix bug in indexes of not presented columns in -WithNames formats that led to error INCORRECT_NUMBER_OF_COLUMNS when the number of columns is more than 256. Closes #35793 . #...
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c9a3cb9d-b49c-4a0e-b35e-d21eddb25167
Fix s3 engine getting virtual columns. Closes #35411 . #35586 ( Kseniia Sumarokova ). Fixed return type deduction for caseWithExpression . The type of the ELSE branch is now correctly taken into account. #35576 ( Antonio Andelic ). Fix parsing of IPv6 addresses longer than 39 characters. Closes #34022 . #35...
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c7f72e3f-b405-4bed-ba8e-ee7dbaa99616
ClickHouse release v22.3-lts, 2022-03-17 {#a-id223a-clickhouse-release-v223-lts-2022-03-17} Backward Incompatible Change {#backward-incompatible-change-6} Make arrayCompact function behave as other higher-order functions: perform compaction not of lambda function results but on the original array. If you're usi...
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d3c761ea-7e43-46ce-8362-8fddd23769c3
Display CPU and memory metrics in clickhouse-local. Close #34545 . #34605 ( 李扬 ). Implement startsWith and endsWith function for arrays, closes #33982 . #34368 ( usurai ). Add three functions for Map data type: 1. mapReplace(map1, map2) - replaces values for keys in map1 with the values of the correspon...
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11af8a96-a217-4196-bd16-7731e7eaf811
Improvement {#improvement-9} Allow asynchronous inserts to table functions. Fixes #34864 . #34866 ( Anton Popov ). Implicit type casting of the key argument for functions dictGetHierarchy , dictIsIn , dictGetChildren , dictGetDescendants . Closes #34970 . #35027 ( Maksim Kita ). EXPLAIN AST query can...
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2883ba60-9bd1-4749-a0c5-bf02b586452f
Avoid division by zero in Query Profiler if Linux kernel has a bug. Closes #34787 . #35032 ( Alexey Milovidov ). Add more sanity checks for keeper configuration: now mixing of localhost and non-local servers is not allowed, also add checks for same value of internal raft port and keeper client port. #35004 ( ale...
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65126c9e-d6da-43b2-a774-6e0d4e548212
Build/Testing/Packaging Improvement {#buildtestingpackaging-improvement-9} Package repository is migrated to JFrog Artifactory ( Mikhail f. Shiryaev ). Randomize some settings in functional tests, so more possible combinations of settings will be tested. This is yet another fuzzing method to ensure better test co...
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c7eeb937-9b7a-48b2-b339-7803433456ae
Avoid std::terminate in case of exception in reading from remote VFS. #35257 ( Azat Khuzhin ). Fix reading port from config, close #34776 . #35193 ( Vladimir C ). Fix error in query with WITH TOTALS in case if HAVING returned empty result. This fixes #33711 . #35186 ( Amos Bird ). Fix a corner case of...
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cdaf2803-b705-4ba9-8ca7-54b81fa615e7
Fix possible "Part directory doesn't exist" during INSERT into MergeTree table backed by VFS over s3. #34876 ( Azat Khuzhin ). Support DDLs like CREATE USER to be executed on cross replicated cluster. #34860 ( Jianmei Zhang ). Fix bugs for multiple columns group by in WindowView (experimental feature). #34...
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e1ee6367-39f1-4947-b9b0-83fa34eab348
Add support of DEFAULT keyword for INSERT statements. Closes #6331 . #33141 ( Andrii Buriachevskyi ). EPHEMERAL column specifier is added to CREATE TABLE query. Closes #9436 . #34424 ( yakov-olkhovskiy ). Support IF EXISTS clause for TTL expr TO [DISK|VOLUME] [IF EXISTS] 'xxx' feature. Parts will be ...
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1e590a9d-e751-42e7-ae6b-02078349ac8a
Support SET , YEAR , TIME and GEOMETRY data types in MaterializedMySQL (experimental feature). Fixes #18091 , #21536 , #26361 . #33429 ( zzsmdfj ). Fix various issues when projection is enabled by default. Each issue is described in separate commit. This is for #33678 . This fixes #34273 . #34305 ( ...
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cbd4002d-bba4-406e-8d3b-9cf54f980de6
Improvement {#improvement-10} Support asynchronous inserts in clickhouse-client for queries with inlined data. #34267 ( Anton Popov ). Functions dictGet , dictHas implicitly cast key argument to dictionary key structure, if they are different. #33672 ( Maksim Kita ). Improvements for range_hashed dic...
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65228e98-1360-4a6c-b5b9-303448e94c60
Default input and output formats for clickhouse-local that can be overridden by --input-format and --output-format. Close #30631 . #34352 ( 李扬 ). Add options for clickhouse-format . Which close #30528 - max_query_size - max_parser_depth . #34349 ( 李扬 ). Better handling of pre-inputs before client start...
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2e93f54a-aaaa-4171-83e2-81c1ff3aca00
Try every resolved IP address while getting S3 proxy. S3 proxies are rarely used, mostly in Yandex Cloud. #33862 ( Nikolai Kochetov ). Support EXPLAIN AST CREATE FUNCTION query EXPLAIN AST CREATE FUNCTION mycast AS (n) -> cast(n as String) will return EXPLAIN AST CREATE FUNCTION mycast AS n -> CAST(n, 'String') ...
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a709fc49-64ff-447c-8009-ff00d1fcba9d
Multiple improvements for build system to remove the possibility of occasionally using packages from the OS and to enforce hermetic builds. #33695 ( Amos Bird ). Bug Fix (user-visible misbehaviour in official stable or prestable release) {#bug-fix-user-visible-misbehaviour-in-official-stable-or-prestable-release-...
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403e65d9-b1b0-4314-bea2-5e2f342c8aa1
Fix memory leak in case of some Exception during query processing with optimize_aggregation_in_order=1 . #34234 ( Azat Khuzhin ). Fix metric Query , which shows the number of executing queries. In last several releases it was always 0. #34224 ( Anton Popov ). Fix schema inference for table runction s3 . #34...
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56400956-d287-4edc-a68a-b5f088bf0a42
Fixed replica is not readonly logical error on SYSTEM RESTORE REPLICA query when replica is actually readonly. Fixes #33806 . #33847 ( tavplubix ). Fix memory leak in clickhouse-keeper in case of compression is used (default). #33840 ( Azat Khuzhin ). Fix index analysis with no common types available. #...
{"source_file": "2022.md"}
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e53e67eb-672b-4f1b-a60c-73a3d4935ba1
ClickHouse release v22.1, 2022-01-18 {#a-id221a-clickhouse-release-v221-2022-01-18} Upgrade Notes {#upgrade-notes-4} The functions left and right were previously implemented in parser and now full-featured. Distributed queries with left or right functions without aliases may throw exception if cluster con...
{"source_file": "2022.md"}
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812e89e5-cbae-4e76-b42e-2a13fa4135c1
Allow COMMENT in CREATE VIEW (for all VIEW kinds). #31062 ( Vasily Nemkov ). Dynamically reinitialize listening ports and protocols when configuration changes. #30549 ( Kevin Michel ). Added left , right , leftUTF8 , rightUTF8 functions. Fix error in implementation of substringUTF8 function with nega...
{"source_file": "2022.md"}
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e61a9419-576d-404d-bb72-50f62e825548
Implemented sparse serialization. It can reduce usage of disk space and improve performance of some queries for columns, which contain a lot of default (zero) values. It can be enabled by setting ratio_for_sparse_serialization . Sparse serialization will be chosen dynamically for column, if it has ratio of number of d...
{"source_file": "2022.md"}
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7612e583-9554-4506-a199-0180be828dd1
LineAsString can be used as output format. This closes #30919 . #33331 ( Sergei Trifonov ). Support <secure/> in cluster configuration, as an alternative form of <secure>1</secure> . Close #33270 . #33330 ( SuperDJY ). Pressing Ctrl+C twice will terminate clickhouse-benchmark immediately without waiting...
{"source_file": "2022.md"}
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44b8c8f5-b523-43cf-b12f-bd25d27fff6c
Allow empty credentials for MongoDB engine. Closes #26267 . #32460 ( Kseniia Sumarokova ). Disable some optimizations for window functions that may lead to exceptions. Closes #31535 . Closes #31620 . #32453 ( Kseniia Sumarokova ). Allows to connect to MongoDB 5.0. Closes #31483 ,. #32416 ( Kseniia Sumar...
{"source_file": "2022.md"}
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c98d590b-64f1-44d8-b66c-57eaec4ae0ec
Add a simple tool to visualize flaky tests in web browser. #33185 ( alexey-milovidov ). Enable hermetic build for shared builds. This is mainly for developers. #32968 ( Amos Bird ). Update libc++ and libc++abi to the latest. #32484 ( Raúl Marín ). Added integration test for external .NET client ( ClickH...
{"source_file": "2022.md"}
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81bc61dc-0a2a-44d5-91be-aef52aad40f5
Fix possible use-after-free for INSERT into materialized view with concurrent DROP ( Azat Khuzhin ). Do not try to read pass EOF (to workaround for a bug in the Linux kernel), this bug can be reproduced on kernels (3.14..5.9), and requires index_granularity_bytes=0 (i.e. turn off adaptive index granularity). #3337...
{"source_file": "2022.md"}
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af5bf223-90db-4e7b-aec3-41c7a7c911dd
Fix a regression in replaceRegexpAll function. The function worked incorrectly when matched substring was empty. This closes #32777 . This closes #30245 . #32945 ( alexey-milovidov ). Fix ORC format stripe reading. #32929 ( kreuzerkrieg ). topKWeightedState failed for some input types. #32487 . #32914 ...
{"source_file": "2022.md"}
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573373bd-8cc2-43fb-ba96-681f2b34730e
Fix issue with ambiguous query formatting in distributed queries that led to errors when some table columns were named ALL or DISTINCT . This closes #32391 . #32490 ( alexey-milovidov ). Fix failures in queries that are trying to use skipping indices, which are not materialized yet. Fixes #32292 and #30343 ....
{"source_file": "2022.md"}
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