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b2a58a3a-3c01-459d-8663-7615e8f12366
Fix the Not found column error for queries with arrayJoin under WHERE condition and IndexSet . #82113 ( Nikolai Kochetov ). Fix TOO_DEEP_SUBQUERIES exception when CTE definition references another table expression with the same name. #83413 ( Dmitry Novik ). Fix incorrect result of queries with WHERE ...
{"source_file": "25_08.md"}
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dea1fa88-9393-4c22-b785-a1cbf10ddf13
Fix the metadata resolution when querying iceberg tables through rest catalog. ... #85531 ( Saurabh Kumar Ojha ). Fix secrets masking in icebergS3Cluster and icebergAzureCluster table functions. #85658 ( MikhailBurdukov ). DeltaLake fixes {#deltalake-fixes} Fix column pruning with delta-kernel in storage ...
{"source_file": "25_08.md"}
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07ff9c4f-d6fe-434d-98a8-a0fb8979a679
Forbid using _part_offset column in projection in releases until it is stabilized. #85372 ( Sema Checherinda ). Parallel replicas fixes {#parallel-replicas-fixes} For some queries executed with parallel replicas, reading in order optimization(s) could be applied on an initiator but not on remote nodes. THis...
{"source_file": "25_08.md"}
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1cfc6ea1-f46f-4af4-8a76-30a98d02d9fe
Fixing copy-paste error in arraySimilarity, disallowing the use of UInt32 and Int32 weights. Update tests and docs. #82103 ( Mikhail f. Shiryaev ). Fix overflow in numericIndexedVectorPointwiseAdd , numericIndexedVectorPointwiseSubtract , numericIndexedVectorPointwiseMultiply , numericIndexedVectorPointwiseDivi...
{"source_file": "25_08.md"}
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ad848951-bec7-4cf6-8f5c-a63f4eaf236e
Fix the creation of RMV on a new replica of the Replicated database if DEFINER is dropped. #85327 ( Nikolay Degterinsky ). Fix recovering replicated databases when moving the metadata file takes a long time. #85177 ( Tuan Pham Anh ). Recover the Replicated Database forcefully after restoring the database metada...
{"source_file": "25_08.md"}
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0d247191-224d-4301-ad6d-1f60d28fe241
Fix logical error while reading from object storage functions through Distributed table or remote table function. Fixes: #84658 , Fixes #85173 , Fixes #52022 . #85359 ( alesapin ). Fix logical error from S3Queue "Table is already registered". Closes #84433 . Broken after https://github.com/ClickHouse/ClickHouse...
{"source_file": "25_08.md"}
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3ecb02a6-5ea7-4538-b2cb-316c4ec207f3
The ngram and no_op tokenizers no longer crash the (experimental) text index for empty input tokens. #84849 ( Robert Schulze ). Materialized view fixes {#materialized-view-fixes} Fix a bug in table dependencies causing Materialized Views to miss INSERT queries. #82222 ( Nikolay Degterinsky ). After ht...
{"source_file": "25_08.md"}
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7566d5b8-023f-458a-9c45-f1c55f32679d
ClickHouse now reads tables from Glue Catalog where table type specified in lower case. #84316 ( alesapin ). Unity catalog now ignores schemas with weird data types in case of non-delta tables. Fixes #85699 . #85950 ( alesapin ). Function fixes {#function-fixes} Functions trim{Left,Right,Both} now supp...
{"source_file": "25_08.md"}
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4c84a9b4-13af-490f-a75c-91feb2c3dc52
Fix the validation of async metrics settings asynchronous_metrics_update_period_s and asynchronous_heavy_metrics_update_period_s . #82310 ( Bharat Nallan ). Fix IndexUncompressedCacheBytes / IndexUncompressedCacheCells / IndexMarkCacheBytes / IndexMarkCacheFiles metrics (previously they were included into metr...
{"source_file": "25_08.md"}
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8ad8da34-b6f7-4b16-bbca-270fb1a62df3
Disallow setting threadpool_writer_pool_size to zero to ensure that server operations don't get stuck. #82532 ( Bharat Nallan ). Resolve minor integer overflow in configuration of setting role_cache_expiration_time_seconds (issue #83374 ). #83461 ( wushap ). Disallow zero value for max_insert_block_size as...
{"source_file": "25_08.md"}
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5b8909fa-71ee-46ca-8dfd-d32ffc5e845c
Introduce backward compatibility setting to allow new analyzer to reference outer alias in the WITH clause in the case of name clashes. Fixes #82700 . #83797 ( Dmitry Novik ). Allow referencing any table in view(...) argument of remote table function with enabled analyzer. Fixes #78717 . Fixes #79377 . #8...
{"source_file": "25_08.md"}
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aab5c515-768c-416f-9190-bfea3b8c5b7d
slug: /changelogs/24.6 title: 'v24.6 Changelog for Cloud' description: 'Fast release changelog for v24.6' keywords: ['changelog', 'cloud'] sidebar_label: '24.6' sidebar_position: 7 doc_type: 'changelog' V24.6 changelog for Cloud Relevant changes for ClickHouse Cloud services based on the v24.6 release. Backward...
{"source_file": "24_06.md"}
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97a8880d-0c78-4a59-a69f-f7ec7ec1735c
Add new function editDistanceUTF8 , which calculates the edit distance between two UTF8 strings. #65269 ( LiuNeng ). Add http_response_headers configuration to support custom response headers in custom HTTP handlers. #63562 ( Grigorii ). Added a new table function loop to support returning query results ...
{"source_file": "24_06.md"}
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8f4c78f7-a94f-486f-9b90-0d07d9ef0b55
Optimize operator IN when the left hand side is LowCardinality and the right is a set of constants. #64060 ( Zhiguo Zhou ). Use a thread pool to initialize and destroy hash tables inside ConcurrentHashJoin . #64241 ( Nikita Taranov ). Optimized vertical merges in tables with sparse columns. #64311 ( Anton ...
{"source_file": "24_06.md"}
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b24e26ba-9b91-4e29-9270-13c23b5a6040
The second argument (scale) of functions round() , roundBankers() , floor() , ceil() and trunc() can now be non-const. #64798 ( Mikhail Gorshkov ). Avoid possible deadlock during MergeTree index analysis when scheduling threads in a saturated service. #59427 ( Sean Haynes ). Several minor corner case fix...
{"source_file": "24_06.md"}
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011973fa-89b9-4a1b-857e-b671b82133b2
Print query in EXPLAIN PLAN with parallel replicas. #64298 ( vdimir ). Rename allow_deprecated_functions to allow_deprecated_error_prone_window_functions . #64358 ( Raúl Marín ). Respect max_read_buffer_size setting for file descriptors as well in the file table function. #64532 ( Azat Khuzhin ). D...
{"source_file": "24_06.md"}
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2ced216e-152b-418c-b152-b6ad5767c9e3
Fixed optimize_read_in_order behaviour for ORDER BY ... NULLS FIRST / LAST on tables with nullable keys. #64483 (Eduard Karacharov). Fix the Expression nodes list expected 1 projection names and Unknown expression or identifier errors for queries with aliases to GLOBAL IN.. #64517 (Nikolai Kochetov). Fix an error C...
{"source_file": "24_06.md"}
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d51799a9-e191-463a-af1c-718670377eb4
Fixing the Not-ready Set error after the PREWHERE optimization for StorageMerge. #65057 (Nikolai Kochetov). Avoid writing to finalized buffer in File-like storages. #65063 (Kruglov Pavel). Fix possible infinite query duration in case of cyclic aliases. Fixes #64849. #65081 (Nikolai Kochetov). Fix the Unknown expr...
{"source_file": "24_06.md"}
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2aa386c4-8dcd-418f-9d0b-dba85c250f3a
slug: /whats-new/changelog/24.2-fast-release title: 'v24.2 Changelog' description: 'Fast release changelog for v24.2' keywords: ['changelog'] sidebar_label: '24.2' sidebar_position: 9 doc_type: 'changelog' ClickHouse release tag: 24.2.2.15987 {#clickhouse-release-tag-242215987} Backward incompatible change {#back...
{"source_file": "24_02.md"}
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9bf5244c-b749-4391-be35-82a1eb8b97c7
The obsolete in-memory data parts have been deprecated since version 23.5 and have not been supported since version 23.10. Now the remaining code is removed. Continuation of #55186 and #45409 . It is unlikely that you have used in-memory data parts because they were available only before version 23.5 and only when y...
{"source_file": "24_02.md"}
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a6cd3bd9-a95c-44f4-a910-8877b68c8f37
New feature {#new-feature} Topk/topkweighed support mode, which return count of values and it's error. #54508 ( UnamedRus ). Added new syntax which allows to specify definer user in view/materialized view. This allows to execute selects/inserts from views without explicit grants for underlying tables. #54901 ...
{"source_file": "24_02.md"}
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b025a55d-4ae7-4a94-9513-850d0c2ef22f
Added new syntax which allows to specify definer user in view/materialized view. This allows to execute selects/inserts from views without explicit grants for underlying tables. #60439 ( pufit ). Add four properties to the StorageMemory (memory-engine) min_bytes_to_keep, max_bytes_to_keep, min_rows_to_keep and ...
{"source_file": "24_02.md"}
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c2209426-4a17-43c2-a26a-f1562e9e87ce
Vectorized function dotProduct which is useful for vector search. #60202 ( Robert Schulze ). If the table's primary key contains mostly useless columns, don't keep them in memory. This is controlled by a new setting primary_key_ratio_of_unique_prefix_values_to_skip_suffix_columns with the value 0.9 by default...
{"source_file": "24_02.md"}
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522f7960-1205-4d9b-b334-b32eea3ad3d0
Ordinary database engine is deprecated. You will receive a warning in clickhouse-client if your server is using it. This closes #52229 . #56942 ( shabroo ). All zero copy locks related to a table have to be dropped when the table is dropped. The directory which contains these locks has to be removed also. #57575 ...
{"source_file": "24_02.md"}
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f6d5f00e-5ae9-4bf3-9fb9-e770ad6ba0b9
Allow alter operations to be surrounded by parenthesis. The emission of parentheses can be controlled by the format_alter_operations_with_parentheses config. By default in formatted queries the parentheses are emitted as we store the formatted alter operations in some places as metadata (e.g.: mutations). The new syn...
{"source_file": "24_02.md"}
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c26f631f-639a-479a-9399-335ebdadedb7
Allow "local" as object storage type instead of "local_blob_storage". #60165 ( Kseniia Sumarokova ). Implement comparison operator for Variant values and proper Field inserting into Variant column. Don't allow creating Variant type with similar variant types by default (allow uder a setting allow_suspicious_vari...
{"source_file": "24_02.md"}
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324ff753-dd5c-4300-b475-751a7d039222
Check for stack overflow in parsers even if the user misconfigured the max_parser_depth setting to a very high value. This closes #59622 . #60434 ( Alexey Milovidov ). Function substring now has a new alias byteSlice . #60494 ( Robert Schulze ). Renamed server setting dns_cache_max_size to dns_cache_ma...
{"source_file": "24_02.md"}
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cfa05ea7-fce0-43dc-b93c-4d19c8653e76
Check memory limit update periodically. #61049 ( Han Fei ). Enable processors profiling (time spent/in and out bytes for sorting, aggregation, ...) by default. #61096 ( Azat Khuzhin ). Add the function toUInt128OrZero , which was missed by mistake (the mistake is related to https://github.com/ClickHouse/ClickH...
{"source_file": "24_02.md"}
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f976fa26-262e-4bad-920f-fa0168e246d3
In the previous version, some numbers in Pretty formats were not pretty enough. #61794 ( Alexey Milovidov ). A long value in Pretty formats won't be cut if it is the single value in the resultset, such as in the result of the SHOW CREATE TABLE query. #61795 ( Alexey Milovidov ). Similarly to clickhouse-local...
{"source_file": "24_02.md"}
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55e4cc4e-c2e6-4fd9-960c-ea49d4318253
Hide sensitive info for s3queue #60233 ( Kseniia Sumarokova ). Revert "Replace ORDER BY ALL by ORDER BY * " #60248 ( Robert Schulze ). Azure Blob Storage : Fix issues endpoint and prefix #60251 ( SmitaRKulkarni ). Fix http exception codes. #60252 ( Austin Kothig ). fix LRUResource Cache bug (Hive cac...
{"source_file": "24_02.md"}
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1ac1ff20-31e6-448e-a744-8959ec1523f1
Prevent setting custom metadata headers on unsupported multipart upload operations #60748 ( Francisco J. Jurado Moreno ). Fix toStartOfInterval #60763 ( Andrey Zvonov ). Fix crash in arrayEnumerateRanked #60764 ( Raúl Marín ). Fix crash when using input() in INSERT SELECT JOIN #60765 ( Kruglov Pavel ). ...
{"source_file": "24_02.md"}
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f2649356-095a-477c-ac05-5162bca262b6
slug: /changelogs/24.12 title: 'v24.12 Changelog for Cloud' description: 'Fast release changelog for v24.12' keywords: ['changelog', 'cloud'] sidebar_label: '24.12' sidebar_position: 4 doc_type: 'changelog' Relevant changes for ClickHouse Cloud services based on the v24.12 release. Backward incompatible changes {...
{"source_file": "24_12.md"}
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8e654b9a-f93a-498e-81aa-8b0377557463
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 ). Added SQL syntax to describe workload and resource management. https://clickhouse.com/docs/en/operations/workload-scheduling. #...
{"source_file": "24_12.md"}
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12b52f51-e27b-407b-a13f-8481f1978441
Implement simple CAST from Map/Tuple/Object to new JSON through serialization/deserialization from JSON string. #71320 ( Pavel Kruglov ). Added aliases anyRespectNulls , firstValueRespectNulls , and anyValueRespectNulls for aggregation function any . Also added aliases anyLastRespectNulls and lastValueRespe...
{"source_file": "24_12.md"}
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bb45d554-9a46-467f-8851-a922945cc3a1
Allows to use a delimiter as a optional second argument for aggregate function groupConcat . #72540 ( Yarik Briukhovetskyi ). 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. Thi...
{"source_file": "24_12.md"}
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76a8beae-e6ef-4755-ae42-8674cd3ebb84
Allows to use indexes on SELECT with LowCardinality(String) . #71598 ( Yarik Briukhovetskyi ). During query execution with parallel replicas and enabled local plan, skip index analysis on workers. The coordinator will choose ranges to read for workers based on index analysis on its side (on query initiator). #7...
{"source_file": "24_12.md"}
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78789c37-d908-4414-90c1-c3e8154b2788
Report running DDLWorker hosts by creating replica_dir and mark replicas active in DDLWorker. #69658 ( Tuan Pham Anh ). Refactor DDLQueryStatusSource : - Rename DDLQueryStatusSource to DistributedQueryStatusSource , and make it a base class - Create two subclasses DDLOnClusterQueryStatusSource and Replic...
{"source_file": "24_12.md"}
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c74d4f90-0778-4b63-94a5-540cae0e4d8d
Added settings limiting the number of replicated tables, dictionaries and views. #71179 ( Kirill ). Fixes #71227 . #71286 ( Arthur Passos ). 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...
{"source_file": "24_12.md"}
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257c0022-e4ff-4cff-91ef-9a1c86a06116
Queries like 'SELECT - FROM t LIMIT 1' used to load part indexes even though they were not used. #71866 ( Alexander Gololobov ). Allow_reorder_prewhere_conditions is on by default with old compatibility settings. #71867 ( Raúl Marín ). Do not increment the ILLEGAL_TYPE_OF_ARGUMENT counter in the system.error...
{"source_file": "24_12.md"}
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4c67d2a3-49d7-40ed-b48a-93351dfaacaf
Support string search operator(eg. like) for Enum data type, fix #72661 . #72732 ( zhanglistar ). Support JSON type in notEmpty function. #72741 ( Pavel Kruglov ). Support parsing GCS S3 error AuthenticationRequired . #72753 ( Vitaly Baranov ). Support Dynamic type in functions ifNull and coalesce. #7277...
{"source_file": "24_12.md"}
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f126e774-e623-45a5-8048-9c95267b9575
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 ). ...
{"source_file": "24_12.md"}
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158a3aae-4b7a-45a3-9fcf-d771e742a821
Don't transform constant set in predicates over partition columns in case of NOT IN operator. #71695 ( Eduard Karacharov ). 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 excepti...
{"source_file": "24_12.md"}
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13676b60-35fb-4eb5-b68f-8d74cf49e9ab
Fix formatting of MOVE PARTITION ... TO TABLE ... alter commands when format_alter_commands_with_parentheses is enabled. #72080 ( János Benjamin Antal ). 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...
{"source_file": "24_12.md"}
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985595cb-ebc0-4f78-a92c-0931e7f2a37f
Fix exception thrown in RemoteQueryExecutor when 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 fil...
{"source_file": "24_12.md"}
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bcaab98b-4297-4b6c-a50f-da9626c711d8
slug: /changelogs/24.8 title: 'v24.8 Changelog for Cloud' description: 'Fast release changelog for v24.8' keywords: ['changelog', 'cloud'] sidebar_label: '24.8' sidebar_position: 6 doc_type: 'changelog' Relevant changes for ClickHouse Cloud services based on the v24.8 release. Backward incompatible change {#backw...
{"source_file": "24_08.md"}
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f21f5c0f-1818-4e62-99a5-a2a36b185915
In previous versions, arrayWithConstant can be slow if asked to generate very large arrays. In the new version, it is limited to 1 GB per array. This closes #32754 . #67741 (Alexey Milovidov). Fix REPLACE modifier formatting (forbid omitting brackets). #67774 (Azat Khuzhin). New feature {#new-feature} ...
{"source_file": "24_08.md"}
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d809090b-8cde-45c0-86f8-147e3f4f1e71
slug: /changelogs/25.6 title: 'v25.6 Changelog for Cloud' description: 'Fast release changelog for v25.6' keywords: ['changelog', 'cloud'] sidebar_label: '25.6' sidebar_position: 2 doc_type: 'changelog' Backward incompatible change {#backward-incompatible-change} Function geoToH3() now accepts the input in th...
{"source_file": "25_06.md"}
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4627c8a3-29d9-4add-bdc7-0b19ffcaea5d
Support correlated subqueries as an argument of EXISTS expression in the WHERE clause. Closes #72459 . #76078 ( Dmitry Novik ). Allow writing to Merge table engines. #77484 ( Anton Ivashkin ). Distributed INSERT SELECT for replicated MergeTree tables now efficiently uses parallel replicas to parallelize ...
{"source_file": "25_06.md"}
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ff707ac6-18b4-4145-b85d-494ed56b84c4
Bundle chdig - TUI interface for ClickHouse (top like) as part of ClickHouse. #79666 ( Azat Khuzhin ). Add MultiPolygon support for pointInPolygon . #79773 ( Nihal Z. Miaji ). Support geo parquet. This closes #75317 . #79777 ( Konstantin Vedernikov ). Add support for querying local filesystem-mounted ...
{"source_file": "25_06.md"}
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154c0764-c521-4c31-83ff-a1138bc084c5
Introduced threshold (regulated by setting parallel_hash_join_threshold ) to fall back to the hash algorithm when the size of the right table is below the threshold. #76185 ( Nikita Taranov ). The existing implementation of Pipe::resize creates a single Resize or StrictResize node by inserting it into the ...
{"source_file": "25_06.md"}
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015106a2-ec2d-4029-916f-065c2626a7cd
Merge equality conditions from filter query plan step into JOIN condition if possible to allow using them as hash table keys. #78877 ( Dmitry Novik ). Improve performance of hive path parsing by using extractKeyValuePairs instead of regex. #79067 ( Arthur Passos ). Fix performance of the distributed INSERT...
{"source_file": "25_06.md"}
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deb0a52c-68f4-4518-a04b-37da851f2a80
Don't process quota values if the user is not limited. #81549 ( Raúl Marín ). Make ProcfsMetricsProvider thread_local to keep files open between tasks. #81576 ( Raúl Marín ). Fixed performance regression in memory tracking. #81694 ( Michael Kolupaev ). Improvement {#improvement} * clickhouse-local wil...
{"source_file": "25_06.md"}
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49aed260-6d1c-415d-8bd1-1f7ba1f2797f
Added field condition to system table system.query_condition_cache . It stores the plaintext condition whose hash is used as a key in the query condition cache. #78671 ( Robert Schulze ). Implement Kafka re-balance like logic for StorageKafka2 using ClickHouse Keeper. For each replica we support two types of par...
{"source_file": "25_06.md"}
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bf1514b1-813f-43be-baae-10ad990be87c
Enable the query condition cache by default. #79080 ( Alexey Milovidov ). * Make tabs undo-able in the Web UI. This closes #71284 . #79084 ( Alexey Milovidov ). Remove settings during recoverLostReplica the same as was done in https://github.com/ClickHouse/ClickHouse/pull/78637. #79113 ( Nikita Mikhayl...
{"source_file": "25_06.md"}
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1b2cf45a-e4db-4f45-be39-88eff38415c2
Allow to specify storage settings for DatabaseCatalog . #79407 ( Kseniia Sumarokova ). Support local storage in delta kernel. #79416 ( Kseniia Sumarokova ). Add a query level setting to enable delta-kernel-rs: allow_experimental_delta_kernel_rs . #79418 ( Kseniia Sumarokova ). Fix possible endless loop wh...
{"source_file": "25_06.md"}
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e20a94dc-fdb5-467c-810c-7007fd53ab9b
System table system.functions now shows in which ClickHouse version functions were first introduced. #79839 ( Robert Schulze ). Added access_control_improvements.enable_user_name_access_type setting. This setting allows enabling/disabling of precise grants for users/roles, introduced in https://github.com/Click...
{"source_file": "25_06.md"}
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e3055c5a-19fe-4863-8e07-3c1bb3ebb175
Highlight metacharacters in SHOW ... LIKE queries. This closes #80275 . #80297 ( Alexey Milovidov ). * Make SQL UDF persistent in clickhouse-local . The previously created function will be loaded at startup. This closes #80085 . #80300 ( Alexey Milovidov ). Support comparison between Time / Time64 . ...
{"source_file": "25_06.md"}
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edb4db51-c853-4f26-9a45-095d711329dd
Add IF EXISTS modifier to SYSTEM SYNC REPLICA . #80810 ( Raúl Marín ). Extend the exception message about "Having zero bytes, but read range is not finished...", add finished_download_time column to system.filesystem_cache'. #80849 ( Kseniia Sumarokova ). Previously, packed storage was not supported for th...
{"source_file": "25_06.md"}
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e28fdb44-c6dd-4937-98ae-67aeeb9821a8
* Upgrade libxml2 to 2.14.3. #81187 ( larryluogit ). MemoryResidentWithoutPageCache provides the amount of physical memory used by the server process, excluding userspace page cache, in bytes. This provides a more accurate view of actual memory usage when userspace page cache is utilized. When userspace page cac...
{"source_file": "25_06.md"}
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ff41a224-af8c-404d-b66f-17ab6f0e39b2
Now that we have the keeper response time distribution data, we can tune the histogram buckets. #81516 ( Miсhael Stetsyuk ). Postpone reading of Iceberg manifest files until the first reading of a query. #81619 ( Daniil Ivanik ). * Use grpc 1.73.0. #81629 ( Konstantin Bogdanov ). * Use delta-kernel-rs ...
{"source_file": "25_06.md"}
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73c1acdc-4b31-4d9f-ac16-04bf9c148733
Fix analyzer producing LOGICAL_ERROR when JOIN ... USING involves ALIAS column - should produce an appropriate error. #78618 ( Yakov Olkhovskiy ). Fix analyzer: CREATE VIEW ... ON CLUSTER fails if SELECT contains positional arguments. #78663 ( Yakov Olkhovskiy ). Fix Block structure mismatch error in ...
{"source_file": "25_06.md"}
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8d52087d-06de-4969-be0a-422e4e9d2b39
* Fix segfault in OpenSSLInitializer . Closes #79092 . #79097 ( Konstantin Bogdanov ). Fix passing of external roles in inter-server queries. #79099 ( Andrey Zvonov ). Always set prefix for S3 ListObject. #79114 ( Azat Khuzhin ). Fixes a bug where arrayUnion() returned extra (incorrect) values on tabl...
{"source_file": "25_06.md"}
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daae2864-9b8a-4c4e-9384-7db13710a2b9
Fix wrong results for grouping sets with ColumnConst and Analyzer. #79743 ( Andrey Zvonov ). Fix local shard result duplication when reading from distributed table with local replica being stale. #79761 ( Eduard Karacharov ). Handle incorrectly configured page_cache_limits suitably. #79805 ( Bharat Nallan )...
{"source_file": "25_06.md"}
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5f082763-ccc3-40d0-beec-95cb0694de66
Executable User Defined Functions (eUDF) names are not added to the used_functions column of the system.query_log table, unlike other functions. This PR implements the addition of the eUDF name if the eUDF was used in the request. #80073 ( Kyamran ). * Fix warnings Cannot find 'kernel' in '[...]/memory.stat'...
{"source_file": "25_06.md"}
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cbd49d3a-c4a8-4163-8e14-0de4e05efeb7
Fix handling of enum globs of a single element in object storage table functions. #80716 ( Konstantin Bogdanov ). Fix wrong result types of comparison functions with Tuple(Dynamic) and String that led to logical error. #80728 ( Pavel Kruglov ). Add missing support data type timestamp_ntz for unity catalog. Fi...
{"source_file": "25_06.md"}
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4fd518bf-7585-4f8e-9124-5468d975803e
Fix crash on INSERT if table was DROPed after query started but before columns sent. #81053 ( Azat Khuzhin ). Fix use-of-uninitialized-value in quantileDeterministic. #81062 ( Azat Khuzhin ). Fix hardlinks count management for metadatastoragefromdisk disk transactions. add tests. #81066 ( Sema Checherinda )...
{"source_file": "25_06.md"}
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fabe9b8a-f421-42be-bdda-9c50d937503c
There is a chance that Web UI displays NaN% (typical JavaScript problems). #81507 ( Alexey Milovidov ). Fix DatabaseReplicated for database_replicated_enforce_synchronous_settings=1 . #81564 ( Azat Khuzhin ). Fix sorting order for LowCardinality(Nullable(...)) types. #81583 ( Pervakov Grigorii ). Serve...
{"source_file": "25_06.md"}
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00648e76-f551-4c06-bf6a-fc0a0bb6c235
slug: /changelogs/25.4 title: 'v25.4 Changelog for Cloud' description: 'Fast release changelog for v25.4' keywords: ['changelog', 'cloud'] sidebar_label: '25.4' sidebar_position: 3 doc_type: 'changelog' Backward incompatible changes {#backward-incompatible-changes} Parquet output format converts Date and DateTi...
{"source_file": "25_04.md"}
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9e72c117-0f74-4989-8c9d-ae25810435d8
Add JSONCompactEachRowWithProgress and JSONCompactStringsEachRowWithProgress formats. Continuation of #69989 . The JSONCompactWithNames and JSONCompactWithNamesAndTypes no longer output "totals" - apparently, it was a mistake in the implementation. #75037 ( Alexey Milovidov ). Change format_alter_operatio...
{"source_file": "25_04.md"}
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1cb8a7b7-5994-4238-a54a-7d02be4d33d2
Added aggregation function sequenceMatchEvents which return timestamps of matched events for longest chain of events in pattern. #72349 ( UnamedRus ). SELECT and VIEW statements now support aliases, e.g. SELECT b FROM (SELECT number, number*2 FROM numbers(2)) AS x (a, b); . This enables TPC-H query 15 to run wi...
{"source_file": "25_04.md"}
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7e42162a-afba-4e58-b392-248291c4634d
Now, Play UI has a progress bar during query runtime. It allows cancelling queries. It displays the total number of records and the extended information about the speed. The table can be rendered incrementally as soon as data arrives. Enable HTTP compression. Rendering of the table became faster. The table header becam...
{"source_file": "25_04.md"}
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99e41811-351a-4858-8c20-e637238b3ec6
Introduce parametrized_view_parameters in system.tables. Closes https://github.com/clickhouse/clickhouse/issues/66756. #75112 ( NamNguyenHoai ). Allow altering a database comment. Closes #73351 ### Documentation entry for user-facing changes. #75622 ( NamNguyenHoai ). Add ability to ATTACH tables without data...
{"source_file": "25_04.md"}
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946f97ec-2281-4907-adb9-1848f4578dc6
JSON data type is production-ready. See https://jsonbench.com/. Dynamic and Varaint data types are production ready. #77785 ( Alexey Milovidov ). Added an in-memory cache for deserialized vector similarity indexes. This should make repeated approximate nearest neighbor (ANN) search queries faster. The size of ...
{"source_file": "25_04.md"}
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623f09f4-262d-4ac2-bdaf-2f41ac691911
Avoid spawn too many idle threads. #72920 ( Guo Wangyang ). Splitting of left table blocks by hash was removed from the probe phase of the parallel_hash JOIN algorithm. #73089 ( Nikita Taranov ). Don't list blob storage keys if we only have curly brackets expansion in table function. Closes #73333 . #73518 ...
{"source_file": "25_04.md"}
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450662b1-495f-4d35-8afa-2c3d26718376
In some cases (e.g., empty array column) data parts can contain empty files. We can skip writing empty blobs to ObjectStorage and only store metadata for such files when the table resides on disk with separated metadata and object storages. #75860 ( Alexander Gololobov ). It was discovered that concurrency control ...
{"source_file": "25_04.md"}
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24c44d93-a10e-4396-98e3-7da0e8a88730
Improve new analyzer infrastructure performance via storing ColumnPtr instead of Field in the ConstantNode . Related to #62245 . #63198 ( Dmitry Novik ). Reject queries when the server is overloaded. The decision is made based on the ratio of wait time ( OSCPUWaitMicroseconds ) to busy time ( OSCPUVirtualTime...
{"source_file": "25_04.md"}
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4bd13702-6507-462c-9758-371d9ca4bbd7
Enables setting use_hive_partitioning by default. #71636 ( Yarik Briukhovetskyi ). Throw an exception when trying to materialize a column in the sort key instead of allowing it to break the sort order. Does not solve #71777 , though. #71891 ( Peter Nguyen ). Allow more general join planning algorithm when ha...
{"source_file": "25_04.md"}
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9482d16d-e361-4a2a-963e-d2474687e1c7
Adds setting max_backup_bandwidth to the list of settings that can be specified as part of BACKUP / RESTORE queries. #72665 ( Christoph Wurm ). Parallel replicas used historical information about replica availability to improve replica selection but did not update the replica's error count when the connection w...
{"source_file": "25_04.md"}
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0f3b043c-9a80-4228-b740-e1c1dda80100
In storage S3Queue allow to transfer old ordered tables created before 24.6 to new structure with buckets. #73467 ( Kseniia Sumarokova ). Add system.azure_queue similar to existing system.s3queue . #73477 ( Kseniia Sumarokova ). Fixed a regression that using collation locales with modifiers throws an error. ...
{"source_file": "25_04.md"}
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df30dc44-ac5e-456b-9762-d979645cdfdb
The BFloat16 data type is production-ready. #73840 ( Alexey Milovidov ). Highlight trailing spaces in Pretty and Vertical formats in the terminal for better clarity. This is controlled with the output_format_pretty_highlight_trailing_spaces setting. Initial implementation by Braden Burns from #72996 . Closes...
{"source_file": "25_04.md"}
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94c9e6f0-1b8c-4a84-94b8-7d1ffd5b459c
In Storage S3(Azure)Queue commit all files (in a single butch defined by commit settings) in a single keeper transaction. #73991 ( Kseniia Sumarokova ). Disable header detection for executable UDFs and dictionaries (could lead to Function 'X': wrong result, expected Y row(s), actual Y-1). #73992 ( Azat Khuzhin ...
{"source_file": "25_04.md"}
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dae893a2-141b-4b08-8a15-530f8164e42f
Autodetect secure connection based on connecting to port 9440 in ClickHouse Client. #74212 ( Christoph Wurm ). Authenticate users with username only for http_handlers (previously it requires user to put the password as well). #74221 ( Azat Khuzhin ). Support for the alternative query languages PRQL and KQL was ...
{"source_file": "25_04.md"}
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a7e0928d-6bfb-4bad-a021-2025b89991b3
Fixes Invalid: Codec 'snappy' doesn't support setting a compression level. #74659 ( Arthur Passos ). Allow using password for client communication with clickhouse-keeper. This feature is not very useful if you specify proper SSL configuration for server and client, but still can be useful for some cases. Password c...
{"source_file": "25_04.md"}
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7576ef8b-b3ae-4034-a4e2-e9cbfb0c2334
Add support for groupUniqArrayArrayMap as SimpleAggregateFunction . #75034 ( Miel Donkers ). Support prepared statements in postgres wire protocol. #75035 ( scanhex12 ). Hide catalog credential settings in database engine Iceberg . Closes #74559 . #75080 ( Kseniia Sumarokova ). Added a few missing feat...
{"source_file": "25_04.md"}
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94618676-4221-4b1e-9a6c-372d3971e804
Add profile events in storage S3(Azure)Queue . #75618 ( Kseniia Sumarokova ). Disable sending settings from server to client ( send_settings_to_client=false ) for compatibility (This feature will be re-implemented as client setting later for better usability). #75648 ( Michael Kolupaev ). Add a config memory_...
{"source_file": "25_04.md"}
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ef268327-d5b7-4066-a0d8-ef82adea22e7
Convert join to in subquery if output column is tied to the left table, need a uniqueness step at first, so disabled by default until the step is added later. #75942 ( Shichao Jin ). Added a server setting throw_on_unknown_workload that allows to choose behavior on query with workload setting set to unknown val...
{"source_file": "25_04.md"}
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c0ccd015-bc7a-4455-9450-a4c8a22e99ad
Fix validation of s3 request settings. #76658 ( Vitaly Baranov ). Avoid excess allocation in readbufferfroms3 and other remote reading buffers, reduce their memory consumption in half. #76692 ( Sema Checherinda ). Support JSON type and subcolumns reading from View. #76903 ( Pavel Kruglov ). Adding Support f...
{"source_file": "25_04.md"}
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a1a30cea-b8dd-45b1-9aa5-f4c19bd056e8
Implement comparison for values of JSON data type. Now JSON objects can be compared similarly to Maps. #77397 ( Pavel Kruglov ). Change reverted. #77399 ( Yarik Briukhovetskyi ). Backup/restore setting allow_s3_native_copy now supports value three possible values: - False - s3 native copy will not be used; ...
{"source_file": "25_04.md"}
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40760005-cc14-433a-ad2b-29bc6abd7b4b
Added column index_length_column to information_schema.tables for better compatibility with MySQL. #78119 ( Paweł Zakrzewski ). Introduce two new metrics: TotalMergeFailures and NonAbortedMergeFailures . These metrics are needed to detect the cases where too many merges fail within a short period. #78150 (...
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c0d037e1-2883-432c-b78c-0504d3c3bef2
Allow empty value on hive partitioning. #78816 ( Arthur Passos ). Fix IN clause type coercion for BFloat16 (i.e. SELECT toBFloat16(1) IN [1, 2, 3]; now returns 1 ). Closes #78754 . #78839 ( Raufs Dunamalijevs ). Do not check parts on other disks for MergeTree if disk= is set. #78855 ( Azat Khuzhin ). ...
{"source_file": "25_04.md"}
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dd89f961-3ff5-4542-a0f3-6eb5de1697fb
Fix crash in StorageObjectStorageQueue. #73274 ( Kseniia Sumarokova ). Fix rare crash in refreshable materialized view during server shutdown. #73323 ( Michael Kolupaev ). The %f placeholder of function formatDateTime now unconditionally generates six (sub-second) digits. This makes the behavior compatible ...
{"source_file": "25_04.md"}
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c63d6127-9041-4bab-9c1f-c4c73dd9e134
Fixed parallel_replicas_for_non_replicated_merge_tree being ignored in subqueries for non-replicated tables. #73584 ( Igor Nikonov ). Fix for std::logical_error thrown when a task cannot be scheduled. Found in stress tests. Example stacktrace: 2024.12.19 02:05:46.171833 [ 18190 ] {01f0daba-d3cc-4898-9e0e-c2c2633...
{"source_file": "25_04.md"}
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a3807566-c1f2-4de0-88db-f06378750705
Fix the following error Row 1: ────── hostname: c-test-wy-37-server-nlkyjyb-0.c-test-wy-37-server-headless.ns-test-wy-37.svc.cluster.local type: ExceptionWhileProcessing event_date: 2024-12-23 event_time: 2024-12-23 16:21:19 event_time_microseconds: 2024-12-23 16:21:19.824624 query_start_time: 2024-12-23 16:21:19 quer...
{"source_file": "25_04.md"}
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e00e0343-7c4e-486c-bc3d-494fa76d78ea
Fixes occasional failure to compare map() types due to possibility to create Map lacking explicit naming ('keys','values') of its nested tuple. #73878 ( Yakov Olkhovskiy ). Ignore window functions during GROUP BY ALL clause resolution. Fix #73501 . #73916 ( Dmitry Novik ). Propogate Native format settings ...
{"source_file": "25_04.md"}
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ef7666f9-a5db-441b-8ea4-8d04fa4c0883
Fix crash with query INSERT INTO SELECT over PostgreSQL interface on macOS (issue #72938 ). #74231 ( Artem Yurov ). Fix native copy settings ( allow_s3_native_copy / allow_azure_native_copy ) for RESTORE from base backup. #74286 ( Azat Khuzhin ). Fixed the issue when the number of detached tables in the da...
{"source_file": "25_04.md"}
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2a01f22d-c810-4d4e-b237-fefdf2d50e67
Fix crash during JSON type declaration parsing when type name is not uppercase. #74784 ( Pavel Kruglov ). Keeper fix: fix reading log entries from disk. #74785 ( Antonio Andelic ). Fixed checking grants for SYSTEM REFRESH/START/STOP VIEW, now it's not required to have this grant on *.* to execute a query for ...
{"source_file": "25_04.md"}
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65a1fff8-abe6-4720-a53f-422e91590402
Disable flatten_nested when creating materialized views with inner tables since it will not be possible to use such flattened columns. #75085 ( Christoph Wurm ). Fix for some of IPv6 addresses (such as ::ffff:1.1.1.1) in forwarded_for field is wrongly interpreted resulting in client disconnect with exception. #7...
{"source_file": "25_04.md"}
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c71aaa8a-1fa9-47a5-b7b4-1d67a76ab899
Fixed rare crashes while reading from MergeTree table after multiple asynchronous RENAME queries (with alter_sync = 0 ) between columns with different types. #75693 ( Anton Popov ). Fix Block structure mismatch in QueryPipeline stream error for some queries with UNION ALL . #75715 ( Nikolai Kochetov ). ...
{"source_file": "25_04.md"}
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2a36dd39-a530-437f-96bf-41b61aa62dae
Fix attaching MergeTree tables with auto indexes ( add_minmax_index_for_numeric_columns / add_minmax_index_for_string_columns ). #76139 ( Azat Khuzhin ). Fixed issue of stack traces from parent threads of a job ( enable_job_stack_trace setting) are not printed out. Fixed issue enable_job_stack_trace setting is n...
{"source_file": "25_04.md"}
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fb62637d-ce5b-44be-8d95-47b854f93357
Fix reverse key analysis for explicitly defined primary keys. Similar to #76654 . #76846 ( Amos Bird ). Fix pretty print of Bool values in JSON format. #76905 ( Pavel Kruglov ). Fix possible crash because of bad JSON column rollback on error during async inserts. #76908 ( Pavel Kruglov ). Previously, mult...
{"source_file": "25_04.md"}
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