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3.7 KiB
3.7 KiB
ClickHouse release v20.10.3.30-stable FIXME as compared to v20.10.2.20-stable
Improvement
- Backported in #16313: Add allow_nondeterministic_optimize_skip_unused_shards (to allow non deterministic like rand() or dictGet() in sharding key). #16105 (Azat Khuzhin).
Bug Fix
- Backported in #16202: Decrement the
ReadonlyReplica
metric when detaching read-only tables. This fixes #15598. #15592 (sundyli). - Backported in #16177: Possibility to move part to another disk/volume if the first attempt was failed. #15723 (Pavel Kovalenko).
- Backported in #16323: Fixed
DROP TABLE IF EXISTS
failure withTable ... doesn't exist
error when table is concurrently renamed (for Atomic database engine). Fixed rare deadlock when concurrently executing some DDL queries with multiple tables (likeDROP DATABASE
andRENAME TABLE
) FixedDROP/DETACH DATABASE
failure withTable ... doesn't exist
when concurrently executingDROP/DETACH TABLE
. #15934 (Alexander Tokmakov). - Backported in #16359: Fix collate name & charset name parser and support
length = 0
for string type. #16008 (Winter Zhang). - Backported in #16299: Fix dictGet in sharding_key (and similar places, i.e. when the function context is stored permanently). #16205 (Azat Khuzhin).
- Backported in #16234: Fix the case when memory can be overallocated regardless to the limit. This closes #14560. #16206 (Alexey Milovidov).
- Backported in #16327: Fix a possible memory leak during
GROUP BY
with string keys, caused by an error inTwoLevelStringHashTable
implementation. #16264 (Amos Bird). - Backported in #16374: Fix async Distributed INSERT w/ prefer_localhost_replica=0 and internal_replication. #16358 (Azat Khuzhin).
- Backported in #16419: Fix group by with totals/rollup/cube modifers and min/max functions over group by keys. Fixes #16393. #16397 (Anton Popov).
- Backported in #16448: Fix double free in case of exception in function
dictGet
. It could have happened if dictionary was loaded with error. #16429 (Nikolai Kochetov).