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ClickHouse/docs/changelogs/v21.2.8.31-stable.md

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Regenerate v21.* changelogs with headers and `not for changelog`
2022-06-23 10:12:54 +00:00
---
sidebar_position: 1
sidebar_label: 2022
---
# 2022 Changelog
Add changelogs for 2021
2022-05-24 19:54:40 +00:00
### ClickHouse release v21.2.8.31-stable FIXME as compared to v21.2.7.11-stable
#### Bug Fix
* Backported in [#22191](https://github.com/ClickHouse/ClickHouse/issues/22191): Fixed race on SSL object inside SecureSocket in Poco. [#21456](https://github.com/ClickHouse/ClickHouse/pull/21456) ([Nikita Mikhaylov](https://github.com/nikitamikhaylov)).
* Backported in [#22336](https://github.com/ClickHouse/ClickHouse/issues/22336): Fix table function `clusterAllReplicas` returns wrong `_shard_num`. close [#21481](https://github.com/ClickHouse/ClickHouse/issues/21481). [#21498](https://github.com/ClickHouse/ClickHouse/pull/21498) ([flynn](https://github.com/ucasfl)).
* Backported in [#22092](https://github.com/ClickHouse/ClickHouse/issues/22092): In case if query has constant `WHERE` condition, and setting `optimize_skip_unused_shards` enabled, all shards may be skipped and query could return incorrect empty result. [#21550](https://github.com/ClickHouse/ClickHouse/pull/21550) ([Amos Bird](https://github.com/amosbird)).
* Backported in [#22318](https://github.com/ClickHouse/ClickHouse/issues/22318): Remove unknown columns from joined table in where for queries to external database engines (MySQL, PostgreSQL). close [#14614](https://github.com/ClickHouse/ClickHouse/issues/14614), close [#19288](https://github.com/ClickHouse/ClickHouse/issues/19288) (dup), close [#19645](https://github.com/ClickHouse/ClickHouse/issues/19645) (dup). [#21640](https://github.com/ClickHouse/ClickHouse/pull/21640) ([Vladimir C](https://github.com/vdimir)).
* Backported in [#22285](https://github.com/ClickHouse/ClickHouse/issues/22285): Start accepting connections after DDLWorker and dictionaries initialization. [#21676](https://github.com/ClickHouse/ClickHouse/pull/21676) ([Azat Khuzhin](https://github.com/azat)).
* Backported in [#21753](https://github.com/ClickHouse/ClickHouse/issues/21753): Fix concurrent `OPTIMIZE` and `DROP` for `ReplicatedMergeTree`. [#21716](https://github.com/ClickHouse/ClickHouse/pull/21716) ([Azat Khuzhin](https://github.com/azat)).
* Backported in [#21809](https://github.com/ClickHouse/ClickHouse/issues/21809): Fix bug for ReplicatedMerge table engines when `ALTER MODIFY COLUMN` query doesn't change the type of decimal column if its size (32 bit or 64 bit) doesn't change. [#21728](https://github.com/ClickHouse/ClickHouse/pull/21728) ([alesapin](https://github.com/alesapin)).
* Backported in [#22188](https://github.com/ClickHouse/ClickHouse/issues/22188): Reverted S3 connection pools. [#21737](https://github.com/ClickHouse/ClickHouse/pull/21737) ([Vladimir Chebotarev](https://github.com/excitoon)).
* Backported in [#22240](https://github.com/ClickHouse/ClickHouse/issues/22240): Fix scalar subquery index analysis. This fixes [#21717](https://github.com/ClickHouse/ClickHouse/issues/21717) , which was introduced in https://github.com/ClickHouse/ClickHouse/pull/18896 . [#21766](https://github.com/ClickHouse/ClickHouse/pull/21766) ([Amos Bird](https://github.com/amosbird)).
* Backported in [#22050](https://github.com/ClickHouse/ClickHouse/issues/22050): Fix deadlock in first catboost model execution. Closes [#13832](https://github.com/ClickHouse/ClickHouse/issues/13832). [#21844](https://github.com/ClickHouse/ClickHouse/pull/21844) ([Kruglov Pavel](https://github.com/Avogar)).
* Backported in [#22464](https://github.com/ClickHouse/ClickHouse/issues/22464): In rare case, merge for `CollapsingMergeTree` may create granule with `index_granularity + 1` rows. Because of this, internal check, added in [#18928](https://github.com/ClickHouse/ClickHouse/issues/18928) (affects 21.2 and 21.3), may fail with error `Incomplete granules are not allowed while blocks are granules size`. This error did not allow parts to merge. [#21976](https://github.com/ClickHouse/ClickHouse/pull/21976) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
* Backported in [#22204](https://github.com/ClickHouse/ClickHouse/issues/22204): Docker entrypoint: avoid chown of `.` in case when `LOG_PATH` is empty. Closes [#22100](https://github.com/ClickHouse/ClickHouse/issues/22100). [#22102](https://github.com/ClickHouse/ClickHouse/pull/22102) ([filimonov](https://github.com/filimonov)).
* Backported in [#22278](https://github.com/ClickHouse/ClickHouse/issues/22278): Fix waiting for `OPTIMIZE` and `ALTER` queries for `ReplicatedMergeTree` table engines. Now the query will not hang when the table was detached or restarted. [#22118](https://github.com/ClickHouse/ClickHouse/pull/22118) ([alesapin](https://github.com/alesapin)).
* Backported in [#22266](https://github.com/ClickHouse/ClickHouse/issues/22266): Fix the background thread pool name. [#22122](https://github.com/ClickHouse/ClickHouse/pull/22122) ([fastio](https://github.com/fastio)).
* Backported in [#22315](https://github.com/ClickHouse/ClickHouse/issues/22315): Fix docker entrypoint in case `http_port` is not in the config. [#22132](https://github.com/ClickHouse/ClickHouse/pull/22132) ([Ewout](https://github.com/devwout)).
* Backported in [#22502](https://github.com/ClickHouse/ClickHouse/issues/22502): Fix query cancellation with `use_hedged_requests=0` and `async_socket_for_remote=1`. [#22183](https://github.com/ClickHouse/ClickHouse/pull/22183) ([Azat Khuzhin](https://github.com/azat)).
* Backported in [#22369](https://github.com/ClickHouse/ClickHouse/issues/22369): Now clickhouse will not throw `LOGICAL_ERROR` exception when we try to mutate the already covered part. Fixes [#22013](https://github.com/ClickHouse/ClickHouse/issues/22013). [#22291](https://github.com/ClickHouse/ClickHouse/pull/22291) ([alesapin](https://github.com/alesapin)).
* Backported in [#22530](https://github.com/ClickHouse/ClickHouse/issues/22530): Buffer overflow (on read) was possible in `tokenbf_v1` full text index. The excessive bytes are not used but the read operation may lead to crash in rare cases. This closes [#19233](https://github.com/ClickHouse/ClickHouse/issues/19233). [#22421](https://github.com/ClickHouse/ClickHouse/pull/22421) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
* Backported in [#22461](https://github.com/ClickHouse/ClickHouse/issues/22461): Add (missing) memory accounting in parallel parsing routines. In previous versions OOM was possible when the resultset contains very large blocks of data. This closes [#22008](https://github.com/ClickHouse/ClickHouse/issues/22008). [#22425](https://github.com/ClickHouse/ClickHouse/pull/22425) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
* Backported in [#22557](https://github.com/ClickHouse/ClickHouse/issues/22557): Fix bug in partial merge join with `LowCardinality`. Close [#22386](https://github.com/ClickHouse/ClickHouse/issues/22386), close [#22388](https://github.com/ClickHouse/ClickHouse/issues/22388). [#22510](https://github.com/ClickHouse/ClickHouse/pull/22510) ([Vladimir C](https://github.com/vdimir)).
* Backported in [#22606](https://github.com/ClickHouse/ClickHouse/issues/22606): Fix deserialization of empty string without newline at end of TSV format. This closes [#20244](https://github.com/ClickHouse/ClickHouse/issues/20244). Possible workaround without version update: set `input_format_null_as_default` to zero. It was zero in old versions. [#22527](https://github.com/ClickHouse/ClickHouse/pull/22527) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
* Backported in [#22575](https://github.com/ClickHouse/ClickHouse/issues/22575): Fix UB by unlocking the rwlock of the TinyLog from the same thread. [#22560](https://github.com/ClickHouse/ClickHouse/pull/22560) ([Azat Khuzhin](https://github.com/azat)).
* Backported in [#22648](https://github.com/ClickHouse/ClickHouse/issues/22648): Avoid UB in *Log engines for rwlock unlock due to unlock from another thread. [#22583](https://github.com/ClickHouse/ClickHouse/pull/22583) ([Azat Khuzhin](https://github.com/azat)).
* Backported in [#22682](https://github.com/ClickHouse/ClickHouse/issues/22682): Fix LOGICAL_ERROR for Log with nested types w/o columns in the SELECT clause. [#22654](https://github.com/ClickHouse/ClickHouse/pull/22654) ([Azat Khuzhin](https://github.com/azat)).
* Backported in [#22699](https://github.com/ClickHouse/ClickHouse/issues/22699): Fix wait for mutations on several replicas for ReplicatedMergeTree table engines. Previously, mutation/alter query may finish before mutation actually executed on other replicas. [#22669](https://github.com/ClickHouse/ClickHouse/pull/22669) ([alesapin](https://github.com/alesapin)).
* Backported in [#22740](https://github.com/ClickHouse/ClickHouse/issues/22740): Fix possible hangs in zk requests in case of OOM exception. Fixes [#22438](https://github.com/ClickHouse/ClickHouse/issues/22438). [#22684](https://github.com/ClickHouse/ClickHouse/pull/22684) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
Regenerate v21.* changelogs with headers and `not for changelog`
2022-06-23 10:12:54 +00:00
#### NOT FOR CHANGELOG / INSIGNIFICANT
* Mannual backport of [#21429](https://github.com/ClickHouse/ClickHouse/issues/21429) in 21.2 [#22505](https://github.com/ClickHouse/ClickHouse/pull/22505) ([Kruglov Pavel](https://github.com/Avogar)).
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