ClickHouse/docs/changelogs/v21.7.5.29-stable.md

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1	2022

2022 Changelog

ClickHouse release v21.7.5.29-stable FIXME as compared to v21.7.4.18-stable

Performance Improvement

• Backported in #26526: Improve latency of short queries, that require reading from tables with large number of columns. #26371 (Anton Popov).

Bug Fix

• Backported in #26787: Fix zstd decompression in case there are escape sequences at the end of internal buffer. Closes #26013. #26314 (Kseniia Sumarokova).
• Backported in #26487: Fix broken name resolution after rewriting column aliases. This fixes #26432. #26475 (Amos Bird).
• Backported in #26615: Fix issues with CREATE DICTIONARY query if dictionary name or database name was quoted. Closes #26491. #26508 (Maksim Kita).
• Backported in #26606: Fix crash in rabbitmq shutdown in case rabbitmq setup was not started. Closes #26504. #26529 (Kseniia Sumarokova).
• Backported in #26612: Update chown cmd check in clickhouse-server docker entrypoint. It fixes the bug that cluster pod restart failed (or timeout) on kubernetes. #26545 (Ky Li).
• Backported in #26647: Fix incorrect function names of groupBitmapAnd/Or/Xor. This fixes. #26557 (Amos Bird).
• Backported in #26704: Fix potential nullptr dereference in window functions. This fixes #25276. #26668 (Alexander Kuzmenkov).
• Backported in #26772: Sometimes SET ROLE could work incorrectly, this PR fixes that. #26707 (Vitaly Baranov).
• Backported in #26907: Fix library-bridge ids load. #26834 (Kseniia Sumarokova).

NOT FOR CHANGELOG / INSIGNIFICANT

• Remove MySQLWireContext #26429 (Vitaly Baranov).
• Update link to dpkg-deb in dockerfiles #26497 (Vladimir C).
• Try fix rabbitmq tests #26826 (Kseniia Sumarokova).
• One more library bridge fix #26873 (Kseniia Sumarokova).