ClickHouse/docs/changelogs/v21.7.7.47-stable.md

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1	2022

2022 Changelog

ClickHouse release v21.7.7.47-stable FIXME as compared to v21.7.6.39-stable

Bug Fix

• Backported in #27364: - Fix uninitialized memory in functions multiSearch* with empty array, close #27169. #27181 (Vladimir C).
• Backported in #27412: Fix distributed_group_by_no_merge=2+distributed_push_down_limit=1 or optimize_distributed_group_by_sharding_key=1 with LIMIT BY and LIMIT OFFSET. #27249 (Azat Khuzhin).
• Backported in #27418: Fix Cannot find column error for queries with sampling. Was introduced in #24574. Fixes #26522. #27301 (Nikolai Kochetov).
• Backported in #27416: Fixed incorrect validation of partition id for MergeTree tables that created with old syntax. #27328 (Alexander Tokmakov).

NOT FOR CHANGELOG / INSIGNIFICANT

• Fix parallel execution of integration tests #25986 (Vitaly Baranov).
• Fix mysql_kill_sync_thread_restore_test #26673 (Vladimir C).
• Wait for self datasource to be initialized in test_jdbc_bridge #26827 (Ilya Yatsishin).
• Better integration tests #26894 (Ilya Yatsishin).
• Implement legacy_column_name_of_tuple_literal in a less intrusive way #27153 (Anton Popov).
• Update PVS checksum #27317 (Alexander Tokmakov).