---
sidebar_position: 1
sidebar_label: 2022
---

# 2022 Changelog

### ClickHouse release v22.9.3.18-stable (0cb4b15d2fa) FIXME as compared to v22.9.2.7-stable (362e2cefcef)

#### Bug Fix (user-visible misbehavior in official stable release)

* Backported in [#41902](https://github.com/ClickHouse/ClickHouse/issues/41902): Fix possible crash in `SELECT` from `Merge` table with enabled `optimize_monotonous_functions_in_order_by` setting. Fixes [#41269](https://github.com/ClickHouse/ClickHouse/issues/41269). [#41740](https://github.com/ClickHouse/ClickHouse/pull/41740) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
* Backported in [#41863](https://github.com/ClickHouse/ClickHouse/issues/41863): 22.9 might fail to startup `ReplicatedMergeTree` table if that table was created by 20.3 or older version and was never altered, it's fixed. Fixes [#41742](https://github.com/ClickHouse/ClickHouse/issues/41742). [#41796](https://github.com/ClickHouse/ClickHouse/pull/41796) ([Alexander Tokmakov](https://github.com/tavplubix)).
* Backported in [#41892](https://github.com/ClickHouse/ClickHouse/issues/41892): Fix compact parts with compressed marks setting. Fixes [#41783](https://github.com/ClickHouse/ClickHouse/issues/41783) and [#41746](https://github.com/ClickHouse/ClickHouse/issues/41746). [#41823](https://github.com/ClickHouse/ClickHouse/pull/41823) ([alesapin](https://github.com/alesapin)).
* Backported in [#41891](https://github.com/ClickHouse/ClickHouse/issues/41891): Old versions of Replicated database doesn't have a special marker in [Zoo]Keeper. We need to check only whether the node contains come obscure data instead of special mark. [#41875](https://github.com/ClickHouse/ClickHouse/pull/41875) ([Nikita Mikhaylov](https://github.com/nikitamikhaylov)).

#### NOT FOR CHANGELOG / INSIGNIFICANT

* Revert of "Revert the revert of "ColumnVector: optimize filter with AVX512 VBMI2 compress store" [#40033](https://github.com/ClickHouse/ClickHouse/issues/40033)" [#41752](https://github.com/ClickHouse/ClickHouse/pull/41752) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
* Update 02354_annoy.sql [#41767](https://github.com/ClickHouse/ClickHouse/pull/41767) ([Alexander Tokmakov](https://github.com/tavplubix)).
* Fix the typo preventing building latest images [#41769](https://github.com/ClickHouse/ClickHouse/pull/41769) ([Mikhail f. Shiryaev](https://github.com/Felixoid)).
* Revert "ColumnVector: optimize UInt8 index with AVX512VBMI ([#41247](https://github.com/ClickHouse/ClickHouse/issues/41247))" [#41797](https://github.com/ClickHouse/ClickHouse/pull/41797) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
