ClickHouse/docs/changelogs/v21.1.4.46-stable.md

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1 2022

2022 Changelog

ClickHouse release v21.1.4.46-stable FIXME as compared to v21.1.3.32-stable

Bug Fix

  • Backported in #19983: Background thread which executes ON CLUSTER queries might hang waiting for dropped replicated table to do something. It's fixed. #19684 (yiguolei).
  • Backported in #20238: Fix a bug that moving pieces to destination table may failed in case of launching multiple clickhouse-copiers. #19743 (madianjun).
  • Backported in #20074: Fix starting the server with tables having default expressions containing dictGet(). Allow getting return type of dictGet() without loading dictionary. #19805 (Vitaly Baranov).
  • Backported in #19997: - Fix a segfault in function fromModifiedJulianDay when the argument type is Nullable(T) for any integral types other than Int32. #19959 (PHO).
  • Backported in #20122: MaterializeMySQL: Fix replication for statements that update several tables. #20066 (Håvard Kvålen).
  • Backported in #20297: * Bugfix in StorageJoin. #20079 (Vladimir C).
  • Backported in #20390: The MongoDB table engine now establishes connection only when it's going to read data. ATTACH TABLE won't try to connect anymore. #20110 (Vitaly Baranov).
  • Backported in #20148: Fix server crash after query with if function with Tuple type of then/else branches result. Tuple type must contain Array or another complex type. Fixes #18356. #20133 (alesapin).
  • Backported in #20327: Fix rare server crash on config reload during the shutdown. Fixes #19689. #20224 (alesapin).
  • Backported in #20331: Restrict to DROP or RENAME version column of *CollapsingMergeTree and ReplacingMergeTree table engines. #20300 (alesapin).
  • Backported in #20363: Fix too often retries of failed background tasks for ReplicatedMergeTree table engines family. This could lead to too verbose logging and increased CPU load. Fixes #20203. #20335 (alesapin).
  • Backported in #20378: Fix incorrect result of binary operations between two constant decimals of different scale. Fixes #20283. #20339 (Maksim Kita).
  • Backported in #20375: Fix null dereference with join_use_nulls=1. #20344 (Azat Khuzhin).
  • Backported in #20359: Avoid invalid dereference in RANGE_HASHED() dictionary. #20345 (Azat Khuzhin).

NO CL ENTRY

  • NO CL ENTRY: 'Revert "Backport #20224 to 21.1: Fix access control manager destruction order"'. #20395 (alesapin).

NOT FOR CHANGELOG / INSIGNIFICANT

  • Use fixed version of confluent-kafka library in integration tests #20124 (alesapin).
  • Handle syntax error for ARRAY JOIN with no args #20223 (Vladimir C).