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2022 Changelog
ClickHouse release v21.2.10.48-stable FIXME as compared to v21.2.9.41-stable
Improvement
- Backported in #23015: Set
background_fetches_pool_sizeto 8 that is better for production usage with frequent small insertions or slow ZooKeeper cluster. #22945 (Alexey Milovidov). - Backported in #23080: Raised the threshold on max number of matches in result of the function
extractAllGroupsHorizontal. #23036 (Vasily Nemkov).
Bug Fix
- Backported in #23155: Fixed a bug with unlimited wait for auxiliary AWS requests. #22594 (Vladimir Chebotarev).
- Backported in #23032: Fix error
Cannot find column in ActionsDAG resultwhich may happen if subquery usesuntuple. Fixes #22290. #22991 (Nikolai Kochetov). - Backported in #23171: Some values were formatted with alignment in center in table cells in
Markdownformat. Not anymore. #23096 (Alexey Milovidov).
NOT FOR CHANGELOG / INSIGNIFICANT
- LibraryDictionarySource fix possible leak #21686 (Maksim Kita).