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29 lines
3.9 KiB
Markdown
29 lines
3.9 KiB
Markdown
---
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sidebar_position: 1
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sidebar_label: 2022
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---
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# 2022 Changelog
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### ClickHouse release v21.4.3.21-stable FIXME as compared to v21.4.2.10-prestable
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#### Improvement
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* Backported in [#22934](https://github.com/ClickHouse/ClickHouse/issues/22934): Correctly check structure of async distributed blocks. [#22325](https://github.com/ClickHouse/ClickHouse/pull/22325) ([Azat Khuzhin](https://github.com/azat)).
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#### Bug Fix
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* Backported in [#22966](https://github.com/ClickHouse/ClickHouse/issues/22966): Fix very rare bug when quorum insert with `quorum_parallel=1` is not really "quorum" because of deduplication. [#18215](https://github.com/ClickHouse/ClickHouse/pull/18215) ([filimonov](https://github.com/filimonov)).
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* Backported in [#22722](https://github.com/ClickHouse/ClickHouse/issues/22722): Check if table function view is used as a column. This complements https://github.com/ClickHouse/ClickHouse/pull/20350. [#21465](https://github.com/ClickHouse/ClickHouse/pull/21465) ([Amos Bird](https://github.com/amosbird)).
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* Backported in [#22808](https://github.com/ClickHouse/ClickHouse/issues/22808): Follow-up fix for [#21936](https://github.com/ClickHouse/ClickHouse/issues/21936). Also fixes [#22433](https://github.com/ClickHouse/ClickHouse/issues/22433). [#22518](https://github.com/ClickHouse/ClickHouse/pull/22518) ([Ivan](https://github.com/abyss7)).
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* Backported in [#22757](https://github.com/ClickHouse/ClickHouse/issues/22757): Fix usage of function `map` in distributed queries. [#22588](https://github.com/ClickHouse/ClickHouse/pull/22588) ([foolchi](https://github.com/foolchi)).
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* Backported in [#22702](https://github.com/ClickHouse/ClickHouse/issues/22702): 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)).
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* Backported in [#22741](https://github.com/ClickHouse/ClickHouse/issues/22741): 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)).
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* Backported in [#22888](https://github.com/ClickHouse/ClickHouse/issues/22888): Fix approx total rows accounting for reverse reading from MergeTree. [#22726](https://github.com/ClickHouse/ClickHouse/pull/22726) ([Azat Khuzhin](https://github.com/azat)).
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* Backported in [#22884](https://github.com/ClickHouse/ClickHouse/issues/22884): Fix pushdown of `HAVING` in case, when filter column is used in aggregation. [#22763](https://github.com/ClickHouse/ClickHouse/pull/22763) ([Anton Popov](https://github.com/CurtizJ)).
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* Backported in [#22917](https://github.com/ClickHouse/ClickHouse/issues/22917): LIVE VIEW (experimental feature). Fix possible hanging in concurrent DROP/CREATE of TEMPORARY LIVE VIEW in `TemporaryLiveViewCleaner`, see https://gist.github.com/vzakaznikov/0c03195960fc86b56bfe2bc73a90019e. [#22858](https://github.com/ClickHouse/ClickHouse/pull/22858) ([Vitaly Baranov](https://github.com/vitlibar)).
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* Backported in [#22921](https://github.com/ClickHouse/ClickHouse/issues/22921): Fixed a crash when using `mannWhitneyUTest` and `rankCorr` with window functions. This fixes [#22728](https://github.com/ClickHouse/ClickHouse/issues/22728). [#22876](https://github.com/ClickHouse/ClickHouse/pull/22876) ([Nikita Mikhaylov](https://github.com/nikitamikhaylov)).
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* Backported in [#22957](https://github.com/ClickHouse/ClickHouse/issues/22957): Fix usage of constant columns of type `Map` with nullable values. [#22939](https://github.com/ClickHouse/ClickHouse/pull/22939) ([Anton Popov](https://github.com/CurtizJ)).
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#### NOT FOR CHANGELOG / INSIGNIFICANT
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* FileDictionarySource fix absolute file path [#22822](https://github.com/ClickHouse/ClickHouse/pull/22822) ([Maksim Kita](https://github.com/kitaisreal)).
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