ClickHouse/docs/changelogs/v21.8.5.7-lts.md
Alexey Milovidov e0252db8d4 No prestable
2023-03-27 12:19:32 +02:00

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1 2022

2022 Changelog

ClickHouse release v21.8.5.7-lts FIXME as compared to v21.8.4.51-lts

Improvement

Bug Fix

Build/Testing/Packaging Improvement

  • Backported in #28031: Temporarily switched ubuntu apt repository to mirror ru.archive.ubuntu.com as default one(archive.ubuntu.com) is not responding from our CI. #28016 (Ilya Yatsishin).

Bug Fix (user-visible misbehaviour in official stable release)

  • Backported in #27974: Fix handling null value with type of Nullable(String) in function JSONExtract. This fixes #27929 and #27930 . This was introduced in https://github.com/ClickHouse/ClickHouse/pull/25452 . #27939 (Amos Bird).
  • Backported in #28117: Fix extremely rare segfaults on shutdown due to incorrect order of context/config reloader shutdown. #28088 (nvartolomei).
  • Backported in #28180: Fixed possible excessive number of conditions moved from WHERE to PREWHERE (optimization controlled by settings optimize_move_to_prewhere). #28139 (lthaooo).
  • Backported in #28254: Fix incorrect behavior in clickhouse-keeper when list watches (getChildren) triggered with set requests for children. #28190 (alesapin).
  • Backported in #28342: Fix a rare bug in clickhouse-keeper when the client can receive a watch response before request-response. #28197 (alesapin).
  • Backported in #28263: Fix possible read of uninitialized memory for queries with Nullable(LowCardinality) type and extremes. Fixes #28165. #28205 (Nikolai Kochetov).
  • Backported in #28292: Fix inconsistent result in queries with ORDER BY and Merge tables with enabled setting optimize_read_in_order. #28266 (Anton Popov).
  • Backported in #28402: Fix intersecting parts due to new part had been replaced with an empty part. #28310 (Azat Khuzhin).

NOT FOR CHANGELOG / INSIGNIFICANT