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41 lines
7.0 KiB
Markdown
41 lines
7.0 KiB
Markdown
---
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sidebar_position: 1
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sidebar_label: 2024
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---
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# 2024 Changelog
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### ClickHouse release v24.3.5.46-lts (fe54cead6b6) FIXME as compared to v24.3.4.147-lts (31a7bdc346d)
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#### Improvement
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* Backported in [#65463](https://github.com/ClickHouse/ClickHouse/issues/65463): Reload certificate chain during certificate reload. [#61671](https://github.com/ClickHouse/ClickHouse/pull/61671) ([Pervakov Grigorii](https://github.com/GrigoryPervakov)).
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* Backported in [#65882](https://github.com/ClickHouse/ClickHouse/issues/65882): Always start Keeper with sufficient amount of threads in global thread pool. [#64444](https://github.com/ClickHouse/ClickHouse/pull/64444) ([Duc Canh Le](https://github.com/canhld94)).
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* Backported in [#65302](https://github.com/ClickHouse/ClickHouse/issues/65302): Returned back the behaviour of how ClickHouse works and interprets Tuples in CSV format. This change effectively reverts https://github.com/ClickHouse/ClickHouse/pull/60994 and makes it available only under a few settings: `output_format_csv_serialize_tuple_into_separate_columns`, `input_format_csv_deserialize_separate_columns_into_tuple` and `input_format_csv_try_infer_strings_from_quoted_tuples`. [#65170](https://github.com/ClickHouse/ClickHouse/pull/65170) ([Nikita Mikhaylov](https://github.com/nikitamikhaylov)).
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* Backported in [#65892](https://github.com/ClickHouse/ClickHouse/issues/65892): Respect cgroup CPU limit in Keeper. [#65819](https://github.com/ClickHouse/ClickHouse/pull/65819) ([Antonio Andelic](https://github.com/antonio2368)).
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#### Critical Bug Fix (crash, LOGICAL_ERROR, data loss, RBAC)
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* Backported in [#65283](https://github.com/ClickHouse/ClickHouse/issues/65283): Fix crash with UniqInjectiveFunctionsEliminationPass and uniqCombined. [#65188](https://github.com/ClickHouse/ClickHouse/pull/65188) ([Raúl Marín](https://github.com/Algunenano)).
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* Backported in [#65370](https://github.com/ClickHouse/ClickHouse/issues/65370): Fix a bug in ClickHouse Keeper that causes digest mismatch during closing session. [#65198](https://github.com/ClickHouse/ClickHouse/pull/65198) ([Aleksei Filatov](https://github.com/aalexfvk)).
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* Backported in [#65446](https://github.com/ClickHouse/ClickHouse/issues/65446): Use correct memory alignment for Distinct combinator. Previously, crash could happen because of invalid memory allocation when the combinator was used. [#65379](https://github.com/ClickHouse/ClickHouse/pull/65379) ([Antonio Andelic](https://github.com/antonio2368)).
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* Backported in [#65708](https://github.com/ClickHouse/ClickHouse/issues/65708): Fix crash in maxIntersections. [#65689](https://github.com/ClickHouse/ClickHouse/pull/65689) ([Raúl Marín](https://github.com/Algunenano)).
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#### Bug Fix (user-visible misbehavior in an official stable release)
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* Backported in [#65352](https://github.com/ClickHouse/ClickHouse/issues/65352): Fix possible abort on uncaught exception in ~WriteBufferFromFileDescriptor in StatusFile. [#64206](https://github.com/ClickHouse/ClickHouse/pull/64206) ([Kruglov Pavel](https://github.com/Avogar)).
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* Backported in [#65327](https://github.com/ClickHouse/ClickHouse/issues/65327): Fix the crash loop when restoring from backup is blocked by creating an MV with a definer that hasn't been restored yet. [#64595](https://github.com/ClickHouse/ClickHouse/pull/64595) ([pufit](https://github.com/pufit)).
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* Backported in [#65538](https://github.com/ClickHouse/ClickHouse/issues/65538): Fix crash for `ALTER TABLE ... ON CLUSTER ... MODIFY SQL SECURITY`. [#64957](https://github.com/ClickHouse/ClickHouse/pull/64957) ([pufit](https://github.com/pufit)).
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* Backported in [#65576](https://github.com/ClickHouse/ClickHouse/issues/65576): Fix crash on destroying AccessControl: add explicit shutdown. [#64993](https://github.com/ClickHouse/ClickHouse/pull/64993) ([Vitaly Baranov](https://github.com/vitlibar)).
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* Backported in [#65159](https://github.com/ClickHouse/ClickHouse/issues/65159): Fix pushing arithmetic operations out of aggregation. In the new analyzer, optimization was applied only once. [#65104](https://github.com/ClickHouse/ClickHouse/pull/65104) ([Dmitry Novik](https://github.com/novikd)).
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* Backported in [#65615](https://github.com/ClickHouse/ClickHouse/issues/65615): Fix aggregate function name rewriting in the new analyzer. [#65110](https://github.com/ClickHouse/ClickHouse/pull/65110) ([Dmitry Novik](https://github.com/novikd)).
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* Backported in [#65728](https://github.com/ClickHouse/ClickHouse/issues/65728): Eliminate injective function in argument of functions `uniq*` recursively. This used to work correctly but was broken in the new analyzer. [#65140](https://github.com/ClickHouse/ClickHouse/pull/65140) ([Duc Canh Le](https://github.com/canhld94)).
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* Backported in [#65261](https://github.com/ClickHouse/ClickHouse/issues/65261): Fix the bug in Hashed and Hashed_Array dictionary short circuit evaluation, which may read uninitialized number, leading to various errors. [#65256](https://github.com/ClickHouse/ClickHouse/pull/65256) ([jsc0218](https://github.com/jsc0218)).
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* Backported in [#65667](https://github.com/ClickHouse/ClickHouse/issues/65667): Disable `non-intersecting-parts` optimization for queries with `FINAL` in case of `read-in-order` optimization was enabled. This could lead to an incorrect query result. As a workaround, disable `do_not_merge_across_partitions_select_final` and `split_parts_ranges_into_intersecting_and_non_intersecting_final` before this fix is merged. [#65505](https://github.com/ClickHouse/ClickHouse/pull/65505) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
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* Backported in [#65784](https://github.com/ClickHouse/ClickHouse/issues/65784): Fixed bug in MergeJoin. Column in sparse serialisation might be treated as a column of its nested type though the required conversion wasn't performed. [#65632](https://github.com/ClickHouse/ClickHouse/pull/65632) ([Nikita Taranov](https://github.com/nickitat)).
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* Backported in [#65929](https://github.com/ClickHouse/ClickHouse/issues/65929): For queries that read from `PostgreSQL`, cancel the internal `PostgreSQL` query if the ClickHouse query is finished. Otherwise, `ClickHouse` query cannot be canceled until the internal `PostgreSQL` query is finished. [#65771](https://github.com/ClickHouse/ClickHouse/pull/65771) ([Maksim Kita](https://github.com/kitaisreal)).
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* Backported in [#65824](https://github.com/ClickHouse/ClickHouse/issues/65824): Fix a bug in short circuit logic when old analyzer and dictGetOrDefault is used. [#65802](https://github.com/ClickHouse/ClickHouse/pull/65802) ([jsc0218](https://github.com/jsc0218)).
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#### NOT FOR CHANGELOG / INSIGNIFICANT
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* Backported in [#65223](https://github.com/ClickHouse/ClickHouse/issues/65223): Capture weak_ptr of ContextAccess for safety. [#65051](https://github.com/ClickHouse/ClickHouse/pull/65051) ([Alexander Gololobov](https://github.com/davenger)).
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* Backported in [#65901](https://github.com/ClickHouse/ClickHouse/issues/65901): Fix bug with session closing in Keeper. [#65735](https://github.com/ClickHouse/ClickHouse/pull/65735) ([Antonio Andelic](https://github.com/antonio2368)).
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