24.8.14 Stable Pre-Release PR

[zvonand]

Changes compared to 24.8.14.10544 Altinity Stable

Backward Incompatible Changes

• ALTER MODIFY COLUMN now requires explicit DEFAULT when converting nullable columns to non-nullable types. Previously such ALTERs could get stuck with cannot convert null to not null errors, now NULLs are replaced with column's default expression. (Handle NULLs in ALTER MODIFY COLUMN ClickHouse/ClickHouse#84770 by @vdimir via 24.8.14 Backport of #84770: Handle NULLs in ALTER MODIFY COLUMN #1370)

Critical Bug Fixes

• Fixed crash in old analyzer if JOIN and duplicated aliases (Crash with old analyzer if JOIN and duplicated aliases ClickHouse/ClickHouse#96405 by @ilejn via 24.8.14 Stable backport of #96405: Crash with old analyzer if JOIN and duplicated aliases #1401)
• Fix nullptr dereference with disabled send_profile_events. This feature was introduced recently for the ClickHouse Python driver (Fix crash with disabled send_profile_events ClickHouse/ClickHouse#94466 by @alexey-milovidov via 24.8.14 Stable Backport of #94466: Fix crash with disabled send_profile_events #1515)

Bug Fixes (user-visible misbehavior in an official stable release)

• Possible crash/undefined behavior in IN function where primary key column types are different from IN function right side column types (Crash in IN function where columns have different types and many columns are involved ClickHouse/ClickHouse#89367 by @ilejn via 24.8.14 Backport of #89367 - Crash in IN function where columns have different types and many columns are involved  #1146)
• Fix aggregation of sparse columns for sum and timeseries when group_by_overflow_mode is set to any (Fix sparse column aggregation with sum() and timeseries ClickHouse/ClickHouse#95301 by @mkmkme via 24.8.14 Backport of #95301: Fix sparse column aggregation with sum() and timeseries #1372)
• Fix aggregation of sparse columns when group_by_overflow_mode is set to any (Fix sparse columns aggregation for any overflow mode ClickHouse/ClickHouse#88440 by @korowa via 24.8.14 Backport of #88440 - Fix sparse columns aggregation for any overflow mode #1389)
• Fixed a crash in SimpleSquashingChunksTransform that occurred in rare cases when processing sparse columns (Fix assert failure in SimpleSquashingChunksTransform ClickHouse/ClickHouse#72226 by @vdimir via 24.8.14 Stable Backport of #72226: Fix assert failure in SimpleSquashingChunksTransform #1399)
• Reintroduce fix for a crash when ClickHouse is used in AWS ECS to connect to AWS S3 (Revert "Revert "Fix AWS ECS"" ClickHouse/ClickHouse#65362 by @Avogar via 24.8.14 Stable backport of #65362: Revert "Revert "Fix AWS ECS"" #1449)

Performance Improvements

• SELECT query with FINAL clause on a ReplacingMergeTree table with the is_deleted column now executes faster because of improved parallelization (Optimize ReplacingMergeTree is_deleted FINAL queries by adding a filter expression transform  ClickHouse/ClickHouse#88090 by @shankar-iyer via 24.8.14 Backport of #88090: Optimize ReplacingMergeTree is_deleted FINAL queries by adding a filter expression transform #1373)

Improvements

• Allow a user to have multiple authentication methods instead of only one. Allow authentication methods to be reset to most recently added method. (Multi auth methods ClickHouse/ClickHouse#65277 by @arthurpassos via 24.8.14 Backport of #65277: Multi auth methods #1371)

Build/Testing/Packaging Improvement

[altinity-robot]

This is an automated comment for commit e9f5832 with description of existing statuses. It's updated for the latest CI running

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