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2024 Changelog
ClickHouse release v24.5.4.49-stable (63b760955a
) FIXME as compared to v24.5.3.5-stable (e0eb66f8e1
)
Improvement
- Backported in #65886: Always start Keeper with sufficient amount of threads in global thread pool. #64444 (Duc Canh Le).
- Backported in #65304: 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
andinput_format_csv_try_infer_strings_from_quoted_tuples
. #65170 (Nikita Mikhaylov). - Backported in #65896: Respect cgroup CPU limit in Keeper. #65819 (Antonio Andelic).
Critical Bug Fix (crash, LOGICAL_ERROR, data loss, RBAC)
- Backported in #65287: Fix crash with UniqInjectiveFunctionsEliminationPass and uniqCombined. #65188 (Raúl Marín).
- Backported in #65374: Fix a bug in ClickHouse Keeper that causes digest mismatch during closing session. #65198 (Aleksei Filatov).
- Backported in #65437: Forbid
QUALIFY
clause in the old analyzer. The old analyzer ignoredQUALIFY
, so it could lead to unexpected data removal in mutations. #65356 (Dmitry Novik). - Backported in #65450: Use correct memory alignment for Distinct combinator. Previously, crash could happen because of invalid memory allocation when the combinator was used. #65379 (Antonio Andelic).
- Backported in #65712: Fix crash in maxIntersections. #65689 (Raúl Marín).
Bug Fix (user-visible misbehavior in an official stable release)
- Backported in #65681: Fix
duplicate alias
error for distributed queries withARRAY JOIN
. #64226 (Nikolai Kochetov). - Backported in #65331: Fix the crash loop when restoring from backup is blocked by creating an MV with a definer that hasn't been restored yet. #64595 (pufit).
- Backported in #64835: Fix bug which could lead to non-working TTLs with expressions. #64694 (alesapin).
- Backported in #65542: Fix crash for
ALTER TABLE ... ON CLUSTER ... MODIFY SQL SECURITY
. #64957 (pufit). - Backported in #65580: Fix crash on destroying AccessControl: add explicit shutdown. #64993 (Vitaly Baranov).
- Backported in #65618: Fix possible infinite query duration in case of cyclic aliases. Fixes #64849. #65081 (Nikolai Kochetov).
- Backported in #65617: Fix aggregate function name rewriting in the new analyzer. #65110 (Dmitry Novik).
- Backported in #65732: Eliminate injective function in argument of functions
uniq*
recursively. This used to work correctly but was broken in the new analyzer. #65140 (Duc Canh Le). - Backported in #65265: Fix the bug in Hashed and Hashed_Array dictionary short circuit evaluation, which may read uninitialized number, leading to various errors. #65256 (jsc0218).
- Backported in #65663: Disable
non-intersecting-parts
optimization for queries withFINAL
in case ofread-in-order
optimization was enabled. This could lead to an incorrect query result. As a workaround, disabledo_not_merge_across_partitions_select_final
andsplit_parts_ranges_into_intersecting_and_non_intersecting_final
before this fix is merged. #65505 (Nikolai Kochetov). - Backported in #65788: 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 (Nikita Taranov).
- Backported in #65812: Fix invalid exceptions in function
parseDateTime
with%F
and%D
placeholders. #65768 (Antonio Andelic). - Backported in #65828: Fix a bug in short circuit logic when old analyzer and dictGetOrDefault is used. #65802 (jsc0218).
NOT FOR CHANGELOG / INSIGNIFICANT
- Backported in #65412: Re-enable OpenSSL session caching. #65111 (Robert Schulze).
- Backported in #65905: Fix bug with session closing in Keeper. #65735 (Antonio Andelic).