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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 isNullable(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 withTuple
type of then/else branches result.Tuple
type must containArray
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
orRENAME
version column of*CollapsingMergeTree
andReplacingMergeTree
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).