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ClickHouse/docs/changelogs/v21.7.8.58-stable.md

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1 2022

2022 Changelog

ClickHouse release v21.7.8.58-stable FIXME as compared to v21.7.7.47-stable

Bug Fix

  • Backported in #27506: Fix errors like Expected ColumnLowCardinality, gotUInt8 or Bad cast from type DB::ColumnVector<char8_t> to DB::ColumnLowCardinality for some queries with LowCardinality in PREWHERE. Fixes #23515. #27298 (Nikolai Kochetov).
  • Backported in #27644: Fix incorrect result for query with row-level security, prewhere and LowCardinality filter. Fixes #27179. #27329 (Nikolai Kochetov).
  • Backported in #27474: fix metric BackgroundMessageBrokerSchedulePoolTask, maybe mistyped。. #27452 (Ben).
  • Backported in #27649: Fix crash during projection materialization when some parts contain missing columns. This fixes #27512. #27528 (Amos Bird).
  • Backported in #27778: - Fix bug with aliased column in Distributed table. #27652 (Vladimir C).
  • Backported in #27674: Fix postgresql table function resulting in non-closing connections. Closes #26088. #27662 (Kseniia Sumarokova).
  • Backported in #27697: Fix bad type cast when functions like arrayHas are applied to arrays of LowCardinality of Nullable of different non-numeric types like DateTime and DateTime64. In previous versions bad cast occurs. In new version it will lead to exception. This closes #26330. #27682 (Alexey Milovidov).
  • Backported in #27748: Remove duplicated source files in CMakeLists.txt in arrow-cmake. #27736 (李扬).

NOT FOR CHANGELOG / INSIGNIFICANT