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2022 Changelog
ClickHouse release v21.2.5.5-stable FIXME as compared to v21.2.4.6-stable
Bug Fix
- Backported in #20574: Fix crash which could happen if unknown packet was received from remove query (was introduced in #17868). #20547 (Azat Khuzhin).
- Backported in #21006: Fix 'Empty task was returned from async task queue' on query cancellation. #20881 (Azat Khuzhin).
- Backported in #21132: Fixed behaviour, when
ALTER MODIFY COLUMNcreated mutation, that will knowingly fail. #21007 (Anton Popov). - Backported in #21251: - Block parallel insertions into storage join. #21009 (Vladimir C).
- Backported in #21069: Out of bound memory access was possible when formatting specifically crafted out of range value of type
DateTime64. This closes #20494. This closes #20543. #21023 (Alexey Milovidov). - Backported in #21160: Fix
input_format_null_as_defaulttake effective when types are nullable. This fixes #21116 . #21121 (Amos Bird). - Backported in #21228: Fixes #21112. Fixed bug that could cause duplicates with insert query (if one of the callbacks came a little too late). #21138 (Kseniia Sumarokova).
- Backported in #21276: Fix bug with
join_use_nullsand joiningTOTALSfrom subqueries. This closes #19362 and #21137. #21248 (Vladimir C).