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Merge pull request #34758 from ClickHouse/changelog-22.2

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Changelog for version 22.2
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### ClickHouse release v22.2, 2022-02-17 (draft)
### ClickHouse release v22.2, 2022-02-17
#### Upgrade Notes
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#### New Feature
* Functions for text classification: language and charset detection. See [#23271](https://github.com/ClickHouse/ClickHouse/issues/23271). [#33314](https://github.com/ClickHouse/ClickHouse/pull/33314) ([Nikolay Degterinsky](https://github.com/evillique)).
* Add memory overcommit to `MemoryTracker`. Added `guaranteed` settings for memory limits which represent soft memory limits. In case when hard memory limit is reached, `MemoryTracker` tries to cancel the most overcommited query. New setting `memory_usage_overcommit_max_wait_microseconds` specifies how long queries may wait another query to stop. Closes [#28375](https://github.com/ClickHouse/ClickHouse/issues/28375). [#31182](https://github.com/ClickHouse/ClickHouse/pull/31182) ([Dmitry Novik](https://github.com/novikd)).
* Allow to create new files on insert for `File`/`S3`/`HDFS` engines. Allow to owerwrite file in `HDFS`. Throw an exception in attempt to overwrite a file in `S3` by default. Throw an exception in attempt to append data to file in formats that have suffix. Closes [#31640](https://github.com/ClickHouse/ClickHouse/issues/31640) Closes [#31622](https://github.com/ClickHouse/ClickHouse/issues/31622) Closes [#23862](https://github.com/ClickHouse/ClickHouse/issues/23862) Closes [#15022](https://github.com/ClickHouse/ClickHouse/issues/15022) Closes [#16674](https://github.com/ClickHouse/ClickHouse/issues/16674). [#33302](https://github.com/ClickHouse/ClickHouse/pull/33302) ([Kruglov Pavel](https://github.com/Avogar)).
* Projections are production ready. Set `allow_experimental_projection_optimization` by default and deprecate this setting. [#34456](https://github.com/ClickHouse/ClickHouse/pull/34456) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
* An option to create a new files on insert for `File`/`S3`/`HDFS` engines. Allow to overwrite a file in `HDFS`. Throw an exception in attempt to overwrite a file in `S3` by default. Throw an exception in attempt to append data to file in formats that have a suffix (and thus don't support appends, like `Parquet`, `ORC`). Closes [#31640](https://github.com/ClickHouse/ClickHouse/issues/31640) Closes [#31622](https://github.com/ClickHouse/ClickHouse/issues/31622) Closes [#23862](https://github.com/ClickHouse/ClickHouse/issues/23862) Closes [#15022](https://github.com/ClickHouse/ClickHouse/issues/15022) Closes [#16674](https://github.com/ClickHouse/ClickHouse/issues/16674). [#33302](https://github.com/ClickHouse/ClickHouse/pull/33302) ([Kruglov Pavel](https://github.com/Avogar)).
* Add a setting that allows a user to provide own deduplication semantic in `MergeTree`/`ReplicatedMergeTree` If provided, it's used instead of data digest to generate block ID. So, for example, by providing a unique value for the setting in each INSERT statement, the user can avoid the same inserted data being deduplicated. This closes: [#7461](https://github.com/ClickHouse/ClickHouse/issues/7461). [#32304](https://github.com/ClickHouse/ClickHouse/pull/32304) ([Igor Nikonov](https://github.com/devcrafter)).
* Add support of `DEFAULT` keyword for INSERT statements. Closes [#6331](https://github.com/ClickHouse/ClickHouse/issues/6331). [#33141](https://github.com/ClickHouse/ClickHouse/pull/33141) ([Andrii Buriachevskyi](https://github.com/1over)).
* `EPHEMERAL` column specifier is added to `CREATE TABLE` query. Closes [#9436](https://github.com/ClickHouse/ClickHouse/issues/9436). [#34424](https://github.com/ClickHouse/ClickHouse/pull/34424) ([yakov-olkhovskiy](https://github.com/yakov-olkhovskiy)).
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* Add function `bitSlice` to extract bit subsequences from String/FixedString. [#33360](https://github.com/ClickHouse/ClickHouse/pull/33360) ([RogerYK](https://github.com/RogerYK)).
* Implemented `meanZTest` aggregate function. [#33354](https://github.com/ClickHouse/ClickHouse/pull/33354) ([achimbab](https://github.com/achimbab)).
* Add confidence intervals to T-tests aggregate functions. [#33260](https://github.com/ClickHouse/ClickHouse/pull/33260) ([achimbab](https://github.com/achimbab)).
* Add function `addressToLineWithInlines`. Close [#26211](https://github.com/ClickHouse/ClickHouse/issues/26211). [#33467](https://github.com/ClickHouse/ClickHouse/pull/33467) ([SuperDJY](https://github.com/cmsxbc)).
* Added `#!` and `# ` as a recognised start of a single line comment. Closes [#34138](https://github.com/ClickHouse/ClickHouse/issues/34138). [#34230](https://github.com/ClickHouse/ClickHouse/pull/34230) ([Aaron Katz](https://github.com/aaronstephenkatz)).
#### Experimental Feature
* Functions for text classification: language and charset detection. See [#23271](https://github.com/ClickHouse/ClickHouse/issues/23271). [#33314](https://github.com/ClickHouse/ClickHouse/pull/33314) ([Nikolay Degterinsky](https://github.com/evillique)).
* Add memory overcommit to `MemoryTracker`. Added `guaranteed` settings for memory limits which represent soft memory limits. In case when hard memory limit is reached, `MemoryTracker` tries to cancel the most overcommited query. New setting `memory_usage_overcommit_max_wait_microseconds` specifies how long queries may wait another query to stop. Closes [#28375](https://github.com/ClickHouse/ClickHouse/issues/28375). [#31182](https://github.com/ClickHouse/ClickHouse/pull/31182) ([Dmitry Novik](https://github.com/novikd)).
* Enable stream to table join in WindowView. [#33729](https://github.com/ClickHouse/ClickHouse/pull/33729) ([vxider](https://github.com/Vxider)).
* Support `SET`, `YEAR`, `TIME` and `GEOMETRY` data types in `MaterializedMySQL` (experimental feature). Fixes [#18091](https://github.com/ClickHouse/ClickHouse/issues/18091), [#21536](https://github.com/ClickHouse/ClickHouse/issues/21536), [#26361](https://github.com/ClickHouse/ClickHouse/issues/26361). [#33429](https://github.com/ClickHouse/ClickHouse/pull/33429) ([zzsmdfj](https://github.com/zzsmdfj)).
* Fix various issues when projection is enabled by default. Each issue is described in separate commit. This is for [#33678](https://github.com/ClickHouse/ClickHouse/issues/33678) . This fixes [#34273](https://github.com/ClickHouse/ClickHouse/issues/34273). [#34305](https://github.com/ClickHouse/ClickHouse/pull/34305) ([Amos Bird](https://github.com/amosbird)).
#### Performance Improvement
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* Improve performance of `LineAsString` format. This closes [#34303](https://github.com/ClickHouse/ClickHouse/issues/34303). [#34306](https://github.com/ClickHouse/ClickHouse/pull/34306) ([alexey-milovidov](https://github.com/alexey-milovidov)).
* Optimize `quantilesExact{Low,High}` to use `nth_element` instead of `sort`. [#34287](https://github.com/ClickHouse/ClickHouse/pull/34287) ([Danila Kutenin](https://github.com/danlark1)).
* Slightly improve performance of `Regexp` format. [#34202](https://github.com/ClickHouse/ClickHouse/pull/34202) ([alexey-milovidov](https://github.com/alexey-milovidov)).
* Minor improvement to potential hot-path in `ExecuteScalarSubqueriesMatcher::visit`, where `std::set<String>` was constructed on every function invocation. [#34128](https://github.com/ClickHouse/ClickHouse/pull/34128) ([Federico Rodriguez](https://github.com/fedrod)).
* Minor improvement for analysis of scalar subqueries. [#34128](https://github.com/ClickHouse/ClickHouse/pull/34128) ([Federico Rodriguez](https://github.com/fedrod)).
* Make ORDER BY tuple almost as fast as ORDER BY columns. We have special optimizations for multiple column ORDER BY: https://github.com/ClickHouse/ClickHouse/pull/10831 . It's beneficial to also apply to tuple columns. [#34060](https://github.com/ClickHouse/ClickHouse/pull/34060) ([Amos Bird](https://github.com/amosbird)).
* Reworks and reintroduce the scalar subqueries cache to Materialized Views execution. [#33958](https://github.com/ClickHouse/ClickHouse/pull/33958) ([Raúl Marín](https://github.com/Algunenano)).
* Slightly improve performance of ORDER BY by adding x86-64 AVX-512 support for `memcmpSmall` functions to accelerate memory comparison. It works only if you compile ClickHouse by yourself. [#33706](https://github.com/ClickHouse/ClickHouse/pull/33706) ([hanqf-git](https://github.com/hanqf-git)).
* Rework and reintroduce the scalar subqueries cache to Materialized Views execution. [#33958](https://github.com/ClickHouse/ClickHouse/pull/33958) ([Raúl Marín](https://github.com/Algunenano)).
* Slightly improve performance of `ORDER BY` by adding x86-64 AVX-512 support for `memcmpSmall` functions to accelerate memory comparison. It works only if you compile ClickHouse by yourself. [#33706](https://github.com/ClickHouse/ClickHouse/pull/33706) ([hanqf-git](https://github.com/hanqf-git)).
* Improve `range_hashed` dictionary performance if for key there are a lot of intervals. Fixes [#23821](https://github.com/ClickHouse/ClickHouse/issues/23821). [#33516](https://github.com/ClickHouse/ClickHouse/pull/33516) ([Maksim Kita](https://github.com/kitaisreal)).
* For inserts and merges into S3, write files in parallel whenever possible (TODO: check if it's merged). [#33291](https://github.com/ClickHouse/ClickHouse/pull/33291) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
* Improve `clickhouse-keeper` performance and fix several memory leaks in NuRaft library. [#33329](https://github.com/ClickHouse/ClickHouse/pull/33329) ([alesapin](https://github.com/alesapin)).
#### Improvement
* Support asynchronous inserts in `clickhouse-client` for queries with inlined data. [#34267](https://github.com/ClickHouse/ClickHouse/pull/34267) ([Anton Popov](https://github.com/CurtizJ)).
* Functions `dictGet`, `dictHas` implicitly cast key argument to dictionary key structure, if they are different. [#33672](https://github.com/ClickHouse/ClickHouse/pull/33672) ([Maksim Kita](https://github.com/kitaisreal)).
* Added `#!` and `# ` as a recognised start of a single line comment. Reference to task [#34138](https://github.com/ClickHouse/ClickHouse/issues/34138). [#34230](https://github.com/ClickHouse/ClickHouse/pull/34230) ([Aaron Katz](https://github.com/aaronstephenkatz)).
* Improvements for `range_hashed` dictionaries. Improve performance of load time if there are multiple attributes. Allow to create a dictionary without attributes. Added option to specify strategy when intervals `start` and `end` have `Nullable` type `convert_null_range_bound_to_open` by default is `true`. Closes [#29791](https://github.com/ClickHouse/ClickHouse/issues/29791). Allow to specify `Float`, `Decimal`, `DateTime64`, `Int128`, `Int256`, `UInt128`, `UInt256` as range types. `RangeHashedDictionary` added support for range values that extend `Int64` type. Closes [#28322](https://github.com/ClickHouse/ClickHouse/issues/28322). Added option `range_lookup_strategy` to specify range lookup type `min`, `max` by default is `min` . Closes [#21647](https://github.com/ClickHouse/ClickHouse/issues/21647). Fixed allocated bytes calculations. Fixed type name in `system.dictionaries` in case of `ComplexKeyHashedDictionary`. [#33927](https://github.com/ClickHouse/ClickHouse/pull/33927) ([Maksim Kita](https://github.com/kitaisreal)).
* `flat`, `hashed`, `hashed_array` dictionaries now support creating with empty attributes, with support of reading the keys and using `dictHas`. Fixes [#33820](https://github.com/ClickHouse/ClickHouse/issues/33820). [#33918](https://github.com/ClickHouse/ClickHouse/pull/33918) ([Maksim Kita](https://github.com/kitaisreal)).
* Added support for `DateTime64` data type in dictionaries. [#33914](https://github.com/ClickHouse/ClickHouse/pull/33914) ([Maksim Kita](https://github.com/kitaisreal)).
* Allow to write `s3(url, access_key_id, secret_access_key)` (autodetect of data format and table structure, but with explicit credentials). [#34503](https://github.com/ClickHouse/ClickHouse/pull/34503) ([Kruglov Pavel](https://github.com/Avogar)).
* Added sending of the output format back to client like it's done in HTTP protocol as suggested in [#34362](https://github.com/ClickHouse/ClickHouse/issues/34362). Closes [#34362](https://github.com/ClickHouse/ClickHouse/issues/34362). [#34499](https://github.com/ClickHouse/ClickHouse/pull/34499) ([Vitaly Baranov](https://github.com/vitlibar)).
* Send ProfileEvents statistics in case of INSERT SELECT query (to display query metrics in `clickhouse-client` for this type of queries). [#34498](https://github.com/ClickHouse/ClickHouse/pull/34498) ([Dmitry Novik](https://github.com/novikd)).
* Recognize `.jsonl` extension for JSONEachRow format. [#34496](https://github.com/ClickHouse/ClickHouse/pull/34496) ([Kruglov Pavel](https://github.com/Avogar)).
* Improve schema inference in clickhouse-local. Allow to write just `clickhouse-local -q "select * from table" < data.format`. [#34495](https://github.com/ClickHouse/ClickHouse/pull/34495) ([Kruglov Pavel](https://github.com/Avogar)).
* Privileges CREATE/ALTER/DROP ROW POLICY now can be granted on a table or on `database.*` as well as globally `*.*`. [#34489](https://github.com/ClickHouse/ClickHouse/pull/34489) ([Vitaly Baranov](https://github.com/vitlibar)).
* Allow `allow_experimental_projection_optimization` by default. [#34456](https://github.com/ClickHouse/ClickHouse/pull/34456) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
* Allow to export arbitrary large files to `s3`. Add two new settings: `s3_upload_part_size_multiply_factor` and `s3_upload_part_size_multiply_parts_count_threshold`. Now each time `s3_upload_part_size_multiply_parts_count_threshold` uploaded to S3 from a single query `s3_min_upload_part_size` multiplied by `s3_upload_part_size_multiply_factor`. Fixes [#34244](https://github.com/ClickHouse/ClickHouse/issues/34244). [#34422](https://github.com/ClickHouse/ClickHouse/pull/34422) ([alesapin](https://github.com/alesapin)).
* Allow to skip not found (404) URLs for globs when using URL storage / table function. Also closes [#34359](https://github.com/ClickHouse/ClickHouse/issues/34359). [#34392](https://github.com/ClickHouse/ClickHouse/pull/34392) ([Kseniia Sumarokova](https://github.com/kssenii)).
* Default input and output formats for `clickhouse-local` that can be overriden by --input-format and --output-format. Close [#30631](https://github.com/ClickHouse/ClickHouse/issues/30631). [#34352](https://github.com/ClickHouse/ClickHouse/pull/34352) ([李扬](https://github.com/taiyang-li)).
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* `REGEXP_MATCHES` and `REGEXP_REPLACE` function aliases for compatibility with PostgreSQL. Close [#30885](https://github.com/ClickHouse/ClickHouse/issues/30885). [#34334](https://github.com/ClickHouse/ClickHouse/pull/34334) ([李扬](https://github.com/taiyang-li)).
* Some servers expect a User-Agent header in their HTTP requests. A `User-Agent` header entry has been added to HTTP requests of the form: User-Agent: ClickHouse/VERSION_STRING. [#34330](https://github.com/ClickHouse/ClickHouse/pull/34330) ([Saad Ur Rahman](https://github.com/surahman)).
* Cancel merges before acquiring table lock for `TRUNCATE` query to avoid `DEADLOCK_AVOIDED` error in some cases. Fixes [#34302](https://github.com/ClickHouse/ClickHouse/issues/34302). [#34304](https://github.com/ClickHouse/ClickHouse/pull/34304) ([tavplubix](https://github.com/tavplubix)).
* Change severity of the "Cancelled merging parts" message in logs, because it's not an error. This closes [#34148](https://github.com/ClickHouse/ClickHouse/issues/34148). [#34232](https://github.com/ClickHouse/ClickHouse/pull/34232) ([alexey-milovidov](https://github.com/alexey-milovidov)).
* Add ability to compose PostgreSQL-style cast operator `::` with `ArrayElement` and `TupleElement`. [#34229](https://github.com/ClickHouse/ClickHouse/pull/34229) ([Nikolay Degterinsky](https://github.com/evillique)).
* Add ability to compose PostgreSQL-style cast operator `::` with expressions using `[]` and `.` operators (array and tuple indexing). [#34229](https://github.com/ClickHouse/ClickHouse/pull/34229) ([Nikolay Degterinsky](https://github.com/evillique)).
* Recognize `YYYYMMDD-hhmmss` format in `parseDateTimeBestEffort` function. This closes [#34206](https://github.com/ClickHouse/ClickHouse/issues/34206). [#34208](https://github.com/ClickHouse/ClickHouse/pull/34208) ([alexey-milovidov](https://github.com/alexey-milovidov)).
* Allow carriage return in the middle of the line while parsing by `Regexp` format. This closes [#34200](https://github.com/ClickHouse/ClickHouse/issues/34200). [#34205](https://github.com/ClickHouse/ClickHouse/pull/34205) ([alexey-milovidov](https://github.com/alexey-milovidov)).
* Allow to parse dictionary `PRIMARY KEY` as `PRIMARY KEY (id, value)`, previously supported only `PRIMARY KEY id, value`. Closes [#34135](https://github.com/ClickHouse/ClickHouse/issues/34135). [#34141](https://github.com/ClickHouse/ClickHouse/pull/34141) ([Maksim Kita](https://github.com/kitaisreal)).
* Maxsplit argument for `splitByChar`. close [#34081](https://github.com/ClickHouse/ClickHouse/issues/34081). [#34140](https://github.com/ClickHouse/ClickHouse/pull/34140) ([李扬](https://github.com/taiyang-li)).
* Improving the experience of multiple line editing for clickhouse-client. This is a follow-up of https://github.com/ClickHouse/ClickHouse/pull/31123. [#34114](https://github.com/ClickHouse/ClickHouse/pull/34114) ([Amos Bird](https://github.com/amosbird)).
* Add `UUID` suport in MsgPack input/output format. [#34065](https://github.com/ClickHouse/ClickHouse/pull/34065) ([Kruglov Pavel](https://github.com/Avogar)).
* Tracing context is now propagated from GRPC client metadata. [#34064](https://github.com/ClickHouse/ClickHouse/pull/34064) ([andremarianiello](https://github.com/andremarianiello)).
* Supports all types of SYSTEM query ON CLUSTER clause. [#34005](https://github.com/ClickHouse/ClickHouse/pull/34005) ([小路](https://github.com/nicelulu)).
* Fix memory accounting for queries that uses < max_untracker_memory. [#34001](https://github.com/ClickHouse/ClickHouse/pull/34001) ([Azat Khuzhin](https://github.com/azat)).
* Allow to parse dictionary's `PRIMARY KEY` as `PRIMARY KEY (id, value)`; previously supported only `PRIMARY KEY id, value`. Closes [#34135](https://github.com/ClickHouse/ClickHouse/issues/34135). [#34141](https://github.com/ClickHouse/ClickHouse/pull/34141) ([Maksim Kita](https://github.com/kitaisreal)).
* An optional argument for `splitByChar` to limit the number of resulting elements. close [#34081](https://github.com/ClickHouse/ClickHouse/issues/34081). [#34140](https://github.com/ClickHouse/ClickHouse/pull/34140) ([李扬](https://github.com/taiyang-li)).
* Improving the experience of multiple line editing for clickhouse-client. This is a follow-up of [#31123](https://github.com/ClickHouse/ClickHouse/pull/31123). [#34114](https://github.com/ClickHouse/ClickHouse/pull/34114) ([Amos Bird](https://github.com/amosbird)).
* Add `UUID` suport in `MsgPack` input/output format. [#34065](https://github.com/ClickHouse/ClickHouse/pull/34065) ([Kruglov Pavel](https://github.com/Avogar)).
* Tracing context (for OpenTelemetry) is now propagated from GRPC client metadata (this change is relevant for GRPC client-server protocol). [#34064](https://github.com/ClickHouse/ClickHouse/pull/34064) ([andremarianiello](https://github.com/andremarianiello)).
* Supports all types of `SYSTEM` queries with `ON CLUSTER` clause. [#34005](https://github.com/ClickHouse/ClickHouse/pull/34005) ([小路](https://github.com/nicelulu)).
* Improve memory accounting for queries that are using less than `max_untracker_memory`. [#34001](https://github.com/ClickHouse/ClickHouse/pull/34001) ([Azat Khuzhin](https://github.com/azat)).
* Fixed UTF-8 string case-insensitive search when lowercase and uppercase characters are represented by different number of bytes. Example is `ẞ` and `ß`. This closes [#7334](https://github.com/ClickHouse/ClickHouse/issues/7334). [#33992](https://github.com/ClickHouse/ClickHouse/pull/33992) ([Harry Lee](https://github.com/HarryLeeIBM)).
* Detect format and schema from stdin in clickhouse-local. [#33960](https://github.com/ClickHouse/ClickHouse/pull/33960) ([Kruglov Pavel](https://github.com/Avogar)).
* `RangeHashedDictionary` improvements. Improve performance of load time if there are multiple attributes. Allow to create without attributes. Added option to specify strategy when intervals `start` and `end` have `Nullable` type `convert_null_range_bound_to_open` by default is `true`. Closes [#29791](https://github.com/ClickHouse/ClickHouse/issues/29791). Allow to specify `Float`, `Decimal`, `DateTime64`, `Int128`, `Int256`, `UInt128`, `UInt256` as range types. `RangeHashedDictionary` added support for range values that extend `Int64` type. Closes [#28322](https://github.com/ClickHouse/ClickHouse/issues/28322). Added option `range_lookup_strategy` to specify range lookup type `min`, `max` by default is `min` . Closes [#21647](https://github.com/ClickHouse/ClickHouse/issues/21647). Fixed allocated bytes calculations. Fixed type name in `system.dictionaries` in case of `ComplexKeyHashedDictionary`. [#33927](https://github.com/ClickHouse/ClickHouse/pull/33927) ([Maksim Kita](https://github.com/kitaisreal)).
* `FlatDictionary`, `HashedDictionary`, `HashedArrayDictionary` added support for creating with empty attributes, with support of read all keys, and `dictHas`. Fixes [#33820](https://github.com/ClickHouse/ClickHouse/issues/33820). [#33918](https://github.com/ClickHouse/ClickHouse/pull/33918) ([Maksim Kita](https://github.com/kitaisreal)).
* Added support for `DateTime64` data type in dictionaries. [#33914](https://github.com/ClickHouse/ClickHouse/pull/33914) ([Maksim Kita](https://github.com/kitaisreal)).
* TODO: WTF? Fix disk using the same path, close [#29072](https://github.com/ClickHouse/ClickHouse/issues/29072). [#33905](https://github.com/ClickHouse/ClickHouse/pull/33905) ([zhongyuankai](https://github.com/zhongyuankai)).
* Try every resolved ip address while getting S3 proxy. [#33862](https://github.com/ClickHouse/ClickHouse/pull/33862) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
* Support explain create function query `explain ast create function mycast AS (n) -> cast(n as String); EXPLAIN AST CREATE FUNCTION mycast AS n -> CAST(n, 'String')`. [#33819](https://github.com/ClickHouse/ClickHouse/pull/33819) ([李扬](https://github.com/taiyang-li)).
* Detect format and schema from stdin in `clickhouse-local`. [#33960](https://github.com/ClickHouse/ClickHouse/pull/33960) ([Kruglov Pavel](https://github.com/Avogar)).
* Correctly handle the case of misconfiguration when multiple disks are using the same path on the filesystem. [#29072](https://github.com/ClickHouse/ClickHouse/issues/29072). [#33905](https://github.com/ClickHouse/ClickHouse/pull/33905) ([zhongyuankai](https://github.com/zhongyuankai)).
* Try every resolved IP address while getting S3 proxy. S3 proxies are rarely used, mostly in Yandex Cloud. [#33862](https://github.com/ClickHouse/ClickHouse/pull/33862) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
* Support EXPLAIN AST CREATE FUNCTION query `EXPLAIN AST CREATE FUNCTION mycast AS (n) -> cast(n as String)` will return `EXPLAIN AST CREATE FUNCTION mycast AS n -> CAST(n, 'String')`. [#33819](https://github.com/ClickHouse/ClickHouse/pull/33819) ([李扬](https://github.com/taiyang-li)).
* Added support for cast from `Map(Key, Value)` to `Array(Tuple(Key, Value))`. [#33794](https://github.com/ClickHouse/ClickHouse/pull/33794) ([Maksim Kita](https://github.com/kitaisreal)).
* Add some improvements and fixes for Bool data type. Fixes [#33244](https://github.com/ClickHouse/ClickHouse/issues/33244). [#33737](https://github.com/ClickHouse/ClickHouse/pull/33737) ([Kruglov Pavel](https://github.com/Avogar)).
* Enable stream to table join in WindowView. [#33729](https://github.com/ClickHouse/ClickHouse/pull/33729) ([vxider](https://github.com/Vxider)).
* Add some improvements and fixes for `Bool` data type. Fixes [#33244](https://github.com/ClickHouse/ClickHouse/issues/33244). [#33737](https://github.com/ClickHouse/ClickHouse/pull/33737) ([Kruglov Pavel](https://github.com/Avogar)).
* Parse and store OpenTelemetry trace-id in big-endian order. [#33723](https://github.com/ClickHouse/ClickHouse/pull/33723) ([Frank Chen](https://github.com/FrankChen021)).
* Improvement for `fromUnixTimestamp64` family functions.. They now accept any integer value that can be converted to `Int64`. This closes: [#14648](https://github.com/ClickHouse/ClickHouse/issues/14648). [#33505](https://github.com/ClickHouse/ClickHouse/pull/33505) ([Andrey Zvonov](https://github.com/zvonand)).
* Add function `addressToLineWithInlines`. Close [#26211](https://github.com/ClickHouse/ClickHouse/issues/26211). [#33467](https://github.com/ClickHouse/ClickHouse/pull/33467) ([SuperDJY](https://github.com/cmsxbc)).
* Support `SET`, `YEAR`, `TIME` and `GEOMETRY` data types in `MaterializedMySQL` (experimental feature). Fixes [#18091](https://github.com/ClickHouse/ClickHouse/issues/18091), [#21536](https://github.com/ClickHouse/ClickHouse/issues/21536), [#26361](https://github.com/ClickHouse/ClickHouse/issues/26361). [#33429](https://github.com/ClickHouse/ClickHouse/pull/33429) ([zzsmdfj](https://github.com/zzsmdfj)).
* Replace `_shard_num` via constants (from [#7624](https://github.com/ClickHouse/ClickHouse/issues/7624)) with `shardNum()` function (from [#27020](https://github.com/ClickHouse/ClickHouse/issues/27020)), to avoid possible issues (like those that had been found in [#16947](https://github.com/ClickHouse/ClickHouse/issues/16947)). [#33392](https://github.com/ClickHouse/ClickHouse/pull/33392) ([Azat Khuzhin](https://github.com/azat)).
* Enable binary arithmetic(plus, minus, multiply, division, least, greates) between Decimal and Float. [#33355](https://github.com/ClickHouse/ClickHouse/pull/33355) ([flynn](https://github.com/ucasfl)).
* Respect cgroup limits for CPU quota. [#33342](https://github.com/ClickHouse/ClickHouse/pull/33342) ([JaySon](https://github.com/JaySon-Huang)).
* Improve keeper performance and fix several memory leaks. [#33329](https://github.com/ClickHouse/ClickHouse/pull/33329) ([alesapin](https://github.com/alesapin)).
* Add new keeper setting `min_session_timeout_ms`. Now keeper server will determine client session timeout according to `min_session_timeout_ms` and `session_timeout_ms` settings. [#33288](https://github.com/ClickHouse/ClickHouse/pull/33288) ([JackyWoo](https://github.com/JackyWoo)).
* Added `UUID` data type support for functions `hex`, `bin`. [#32170](https://github.com/ClickHouse/ClickHouse/pull/32170) ([Frank Chen](https://github.com/FrankChen021)).
* Reimplement `_shard_num` from constants (see [#7624](https://github.com/ClickHouse/ClickHouse/issues/7624)) with `shardNum()` function (seee [#27020](https://github.com/ClickHouse/ClickHouse/issues/27020)), to avoid possible issues (like those that had been found in [#16947](https://github.com/ClickHouse/ClickHouse/issues/16947)). [#33392](https://github.com/ClickHouse/ClickHouse/pull/33392) ([Azat Khuzhin](https://github.com/azat)).
* Enable binary arithmetic (plus, minus, multiply, division, least, greatest) between Decimal and Float. [#33355](https://github.com/ClickHouse/ClickHouse/pull/33355) ([flynn](https://github.com/ucasfl)).
* Respect cgroups limits in max_threads autodetection. [#33342](https://github.com/ClickHouse/ClickHouse/pull/33342) ([JaySon](https://github.com/JaySon-Huang)).
* Add new clickhouse-keeper setting `min_session_timeout_ms`. Now clickhouse-keeper will determine client session timeout according to `min_session_timeout_ms` and `session_timeout_ms` settings. [#33288](https://github.com/ClickHouse/ClickHouse/pull/33288) ([JackyWoo](https://github.com/JackyWoo)).
* Added `UUID` data type support for functions `hex` and `bin`. [#32170](https://github.com/ClickHouse/ClickHouse/pull/32170) ([Frank Chen](https://github.com/FrankChen021)).
* Fix reading of subcolumns with dots in their names. In particular fixed reading of `Nested` columns, if their element names contain dots (e.g ```Nested(`keys.name` String, `keys.id` UInt64, values UInt64)```). [#34228](https://github.com/ClickHouse/ClickHouse/pull/34228) ([Anton Popov](https://github.com/CurtizJ)).
* Fixes `parallel_view_processing = 0` not working when inserting into a table using `VALUES`. - Fixes `view_duration_ms` in the `query_views_log` not being set correctly for materialized views. [#34067](https://github.com/ClickHouse/ClickHouse/pull/34067) ([Raúl Marín](https://github.com/Algunenano)).
* Fix parsing tables structure from ZooKeeper: now metadata from ZooKeeper compared with local metadata in canonical form. It helps when canonical function names can change between ClickHouse versions. [#33933](https://github.com/ClickHouse/ClickHouse/pull/33933) ([sunny](https://github.com/sunny19930321)).
* Properly escape some characters for interaction with LDAP. [#33401](https://github.com/ClickHouse/ClickHouse/pull/33401) ([IlyaTsoi](https://github.com/IlyaTsoi)).
#### Build/Testing/Packaging Improvement
* - Fix path in workflows/release.yml - To be backported to branch 22.1. [#34646](https://github.com/ClickHouse/ClickHouse/pull/34646) ([Mikhail f. Shiryaev](https://github.com/Felixoid)).
* - Rework version_helper, make it executable - Reimplement StorageSystemContributors.sh in version_helper - Create a release script. [#34641](https://github.com/ClickHouse/ClickHouse/pull/34641) ([Mikhail f. Shiryaev](https://github.com/Felixoid)).
* Reverts ClickHouse/ClickHouse[#34614](https://github.com/ClickHouse/ClickHouse/issues/34614). [#34622](https://github.com/ClickHouse/ClickHouse/pull/34622) ([Mikhail f. Shiryaev](https://github.com/Felixoid)).
* Set timeout 40 minutes for fast tests. [#34614](https://github.com/ClickHouse/ClickHouse/pull/34614) ([Mikhail f. Shiryaev](https://github.com/Felixoid)).
* I test compile ClickHouse without HDFS but failed, because the code in DiskHDFS doesn`t judge whether use HDFS. [#34573](https://github.com/ClickHouse/ClickHouse/pull/34573) ([zxealous](https://github.com/zxealous)).
* Fix broken Hadoop tests after updated paths in an image. [#34556](https://github.com/ClickHouse/ClickHouse/pull/34556) ([Mikhail f. Shiryaev](https://github.com/Felixoid)).
* - Rebuild docker images on a daily base - Add `--all` flag to rebuild all images - Add `only_amd64` parameter for some images - Revert all workarounds for `only_amd64` images - Fix all broken images. [#34492](https://github.com/ClickHouse/ClickHouse/pull/34492) ([Mikhail f. Shiryaev](https://github.com/Felixoid)).
* Remove unbundled build support. [#33690](https://github.com/ClickHouse/ClickHouse/pull/33690) ([Azat Khuzhin](https://github.com/azat)).
* Ensure that tests don't depend on the result of non-stable sorting of equal elements. Added equal items ranges randomization in debug after sort to prevent issues when we rely on equal items sort order. [#34393](https://github.com/ClickHouse/ClickHouse/pull/34393) ([Maksim Kita](https://github.com/kitaisreal)).
* - Migrate docker images from Moscow timezone to UTC - Update ubuntu version for performance comparison from 18.04 to 20.04. [#34373](https://github.com/ClickHouse/ClickHouse/pull/34373) ([Mikhail f. Shiryaev](https://github.com/Felixoid)).
* Fix previously wrong OK_SKIP_LABELS in run_check.py. [#34340](https://github.com/ClickHouse/ClickHouse/pull/34340) ([Mikhail f. Shiryaev](https://github.com/Felixoid)).
* Add verbosity to a style check. [#34289](https://github.com/ClickHouse/ClickHouse/pull/34289) ([Mikhail f. Shiryaev](https://github.com/Felixoid)).
* - Fix style check for tags_stable.yml - Run StyleCheck always in PR - Mark `Run Check` as failed only for some cases. [#34283](https://github.com/ClickHouse/ClickHouse/pull/34283) ([Mikhail f. Shiryaev](https://github.com/Felixoid)).
* - Add get_with_retries to a download helper - Use it un PRInfo class - Replace `labels_from_api` by `pr_event_from_api` - Use it in description check to have always actual body and labels. [#34012](https://github.com/ClickHouse/ClickHouse/pull/34012) ([Mikhail f. Shiryaev](https://github.com/Felixoid)).
* Fix broken dependencies tree building, improve tests. [#33983](https://github.com/ClickHouse/ClickHouse/pull/33983) ([Mikhail f. Shiryaev](https://github.com/Felixoid)).
* Separate base parts out of SystemLog. Common code can use system log without fully linking to Interpreters. This helps with errors like https://s3.amazonaws.com/clickhouse-builds/33970/49b229f9c781854861254350d3407f209fb99dfd/binary_splitted/build_log.log. [#33978](https://github.com/ClickHouse/ClickHouse/pull/33978) ([Amos Bird](https://github.com/amosbird)).
* Add back the missing `-Werror` flag globally. This fixes https://github.com/ClickHouse/ClickHouse/pull/33940#issuecomment-1020466537. [#33970](https://github.com/ClickHouse/ClickHouse/pull/33970) ([Amos Bird](https://github.com/amosbird)).
* - Add on-demand style-checker-aarch64 hosts - Run dockerpush CI jobs there. [#33954](https://github.com/ClickHouse/ClickHouse/pull/33954) ([Mikhail f. Shiryaev](https://github.com/Felixoid)).
* clickhouse-test.deb is not used in stateless CI checks. [#33948](https://github.com/ClickHouse/ClickHouse/pull/33948) ([Ilya Yatsishin](https://github.com/qoega)).
* Disable dh_update_autotools_config that updates config.guess/config.sub in sources directory on build. It will be more deterministic in terms of different build hosts used as config.guess is provided with sources. [#33752](https://github.com/ClickHouse/ClickHouse/pull/33752) ([Ilya Yatsishin](https://github.com/qoega)).
* - Fix unconditional `--build-arg FROM_TAG=` docker argument - Add some tests for docker tests/ci. [#33751](https://github.com/ClickHouse/ClickHouse/pull/33751) ([Mikhail f. Shiryaev](https://github.com/Felixoid)).
* Some improvement over current build system. [#33695](https://github.com/ClickHouse/ClickHouse/pull/33695) ([Amos Bird](https://github.com/amosbird)).
* Remove unbundled support. [#33690](https://github.com/ClickHouse/ClickHouse/pull/33690) ([Azat Khuzhin](https://github.com/azat)).
* Add action for published releases. [#32218](https://github.com/ClickHouse/ClickHouse/pull/32218) ([Mikhail f. Shiryaev](https://github.com/Felixoid)).
* Remove `clickhouse-test` debian package because it's obsolete. [#33948](https://github.com/ClickHouse/ClickHouse/pull/33948) ([Ilya Yatsishin](https://github.com/qoega)).
* Multiple improvements for build system to remove the possibility of occasionally using packages from the OS and to enforce hermetic builds. [#33695](https://github.com/ClickHouse/ClickHouse/pull/33695) ([Amos Bird](https://github.com/amosbird)).
#### Bug Fix (user-visible misbehaviour in official stable or prestable release)
* - Add Debug workflow to get variables for all actions on demand - Fix lack of pr_info.number for some edge case. [#34644](https://github.com/ClickHouse/ClickHouse/pull/34644) ([Mikhail f. Shiryaev](https://github.com/Felixoid)).
* Fixed the assertion in case of using `allow_experimental_parallel_reading_from_replicas` with `max_parallel_replicas` equals to 1. This fixes [#34525](https://github.com/ClickHouse/ClickHouse/issues/34525). [#34613](https://github.com/ClickHouse/ClickHouse/pull/34613) ([Nikita Mikhaylov](https://github.com/nikitamikhaylov)).
* Fix bug of round/roundBankers, close [#33267](https://github.com/ClickHouse/ClickHouse/issues/33267). [#34562](https://github.com/ClickHouse/ClickHouse/pull/34562) ([李扬](https://github.com/taiyang-li)).
* In case of cancelation S3 and HDFS canceled only current reader, but continued to execute the initial query. Fixes [#34301](https://github.com/ClickHouse/ClickHouse/issues/34301) Relates to [#34397](https://github.com/ClickHouse/ClickHouse/issues/34397). [#34539](https://github.com/ClickHouse/ClickHouse/pull/34539) ([Dmitry Novik](https://github.com/novikd)).
* Fix exception `Chunk should have AggregatedChunkInfo in MergingAggregatedTransform` (in case of `optimize_aggregation_in_order=1` and `distributed_aggregation_memory_efficient=0`). Fixes [#34526](https://github.com/ClickHouse/ClickHouse/issues/34526). [#34532](https://github.com/ClickHouse/ClickHouse/pull/34532) ([Anton Popov](https://github.com/CurtizJ)).
* Fix rare bug while reading of empty arrays, which could lead to `Data compressed with different methods` error. It can reproduce if you have mostly empty arrays, but not always. And reading is performed in backward direction with ORDER BY ... DESC. This error is extremely unlikely to happen. [#34327](https://github.com/ClickHouse/ClickHouse/pull/34327) ([Anton Popov](https://github.com/CurtizJ)).
* Fix wrong result of `round`/`roundBankers` if integer values of small types are rounded. Closes [#33267](https://github.com/ClickHouse/ClickHouse/issues/33267). [#34562](https://github.com/ClickHouse/ClickHouse/pull/34562) ([李扬](https://github.com/taiyang-li)).
* Sometimes query cancellation did not work immediately when we were reading multiple files from s3 or HDFS. Fixes [#34301](https://github.com/ClickHouse/ClickHouse/issues/34301) Relates to [#34397](https://github.com/ClickHouse/ClickHouse/issues/34397). [#34539](https://github.com/ClickHouse/ClickHouse/pull/34539) ([Dmitry Novik](https://github.com/novikd)).
* Fix exception `Chunk should have AggregatedChunkInfo in MergingAggregatedTransform` (in case of `optimize_aggregation_in_order = 1` and `distributed_aggregation_memory_efficient = 0`). Fixes [#34526](https://github.com/ClickHouse/ClickHouse/issues/34526). [#34532](https://github.com/ClickHouse/ClickHouse/pull/34532) ([Anton Popov](https://github.com/CurtizJ)).
* Fix comparison between integers and floats in index analysis. Previously it could lead to skipping some granules for reading by mistake. Fixes [#34493](https://github.com/ClickHouse/ClickHouse/issues/34493). [#34528](https://github.com/ClickHouse/ClickHouse/pull/34528) ([Anton Popov](https://github.com/CurtizJ)).
* Fix compression support in URL engine. [#34524](https://github.com/ClickHouse/ClickHouse/pull/34524) ([Frank Chen](https://github.com/FrankChen021)).
* Fix possible error 'file_size: Operation not supported'. [#34479](https://github.com/ClickHouse/ClickHouse/pull/34479) ([Kruglov Pavel](https://github.com/Avogar)).
* Add missing lock for storage. Fixes possible race with table deletion. [#34416](https://github.com/ClickHouse/ClickHouse/pull/34416) ([Kseniia Sumarokova](https://github.com/kssenii)).
* Fix possible error 'Cannot convert column Function to mask' in short circuit function evaluation. Closes [#34171](https://github.com/ClickHouse/ClickHouse/issues/34171). [#34415](https://github.com/ClickHouse/ClickHouse/pull/34415) ([Kruglov Pavel](https://github.com/Avogar)).
* Fix segfault in schema inference from url. Closes [#34147](https://github.com/ClickHouse/ClickHouse/issues/34147). [#34405](https://github.com/ClickHouse/ClickHouse/pull/34405) ([Kruglov Pavel](https://github.com/Avogar)).
* For SQLUserDefinedFunctions change privilege level from DATABASE to GLOBAL. Closes [#34281](https://github.com/ClickHouse/ClickHouse/issues/34281). [#34404](https://github.com/ClickHouse/ClickHouse/pull/34404) ([Maksim Kita](https://github.com/kitaisreal)).
* Fix possible error 'file_size: Operation not supported' in files' schema autodetection. [#34479](https://github.com/ClickHouse/ClickHouse/pull/34479) ([Kruglov Pavel](https://github.com/Avogar)).
* Fixes possible race with table deletion. [#34416](https://github.com/ClickHouse/ClickHouse/pull/34416) ([Kseniia Sumarokova](https://github.com/kssenii)).
* Fix possible error `Cannot convert column Function to mask` in short circuit function evaluation. Closes [#34171](https://github.com/ClickHouse/ClickHouse/issues/34171). [#34415](https://github.com/ClickHouse/ClickHouse/pull/34415) ([Kruglov Pavel](https://github.com/Avogar)).
* Fix potential crash when doing schema inference from url source. Closes [#34147](https://github.com/ClickHouse/ClickHouse/issues/34147). [#34405](https://github.com/ClickHouse/ClickHouse/pull/34405) ([Kruglov Pavel](https://github.com/Avogar)).
* For UDFs access permissions were checked for database level instead of global level as it should be. Closes [#34281](https://github.com/ClickHouse/ClickHouse/issues/34281). [#34404](https://github.com/ClickHouse/ClickHouse/pull/34404) ([Maksim Kita](https://github.com/kitaisreal)).
* Fix wrong engine syntax in result of `SHOW CREATE DATABASE` query for databases with engine `Memory`. This closes [#34335](https://github.com/ClickHouse/ClickHouse/issues/34335). [#34345](https://github.com/ClickHouse/ClickHouse/pull/34345) ([alexey-milovidov](https://github.com/alexey-milovidov)).
* Try to fix rare bug while reading of empty arrays, which could lead to `Data compressed with different methods` error. [#34327](https://github.com/ClickHouse/ClickHouse/pull/34327) ([Anton Popov](https://github.com/CurtizJ)).
* Fix various issues when projection is enabled by default. Each issue is described in separate commit. This is for [#33678](https://github.com/ClickHouse/ClickHouse/issues/33678) . This fixes [#34273](https://github.com/ClickHouse/ClickHouse/issues/34273). [#34305](https://github.com/ClickHouse/ClickHouse/pull/34305) ([Amos Bird](https://github.com/amosbird)).
* Fixed a couple of extremely rare race conditions that might lead to broken state of replication queue and "intersecting parts" error. [#34297](https://github.com/ClickHouse/ClickHouse/pull/34297) ([tavplubix](https://github.com/tavplubix)).
* Fix progress bar width. It was incorrectly rounded to integer number of characters. [#34275](https://github.com/ClickHouse/ClickHouse/pull/34275) ([alexey-milovidov](https://github.com/alexey-milovidov)).
* Fix current_user/current_address for interserver mode (Before this patch current_user/current_address will be preserved from the previous query). [#34263](https://github.com/ClickHouse/ClickHouse/pull/34263) ([Azat Khuzhin](https://github.com/azat)).
* Fix current_user/current_address client information fields for inter-server communication (before this patch current_user/current_address will be preserved from the previous query). [#34263](https://github.com/ClickHouse/ClickHouse/pull/34263) ([Azat Khuzhin](https://github.com/azat)).
* Fix memory leak in case of some Exception during query processing with `optimize_aggregation_in_order=1`. [#34234](https://github.com/ClickHouse/ClickHouse/pull/34234) ([Azat Khuzhin](https://github.com/azat)).
* Fix reading of subcolumns with dots in their names. In particular fixed reading of `Nested` columns, if their element names contain dots (e.g ```Nested(`keys.name` String, `keys.id` UInt64, values UInt64)```). [#34228](https://github.com/ClickHouse/ClickHouse/pull/34228) ([Anton Popov](https://github.com/CurtizJ)).
* Fix metric `Query`, which shows number of executing queries. In last several releases it was always 0. [#34224](https://github.com/ClickHouse/ClickHouse/pull/34224) ([Anton Popov](https://github.com/CurtizJ)).
* Fix schema inference for table runction s3. [#34186](https://github.com/ClickHouse/ClickHouse/pull/34186) ([Kruglov Pavel](https://github.com/Avogar)).
* Fix metric `Query`, which shows the number of executing queries. In last several releases it was always 0. [#34224](https://github.com/ClickHouse/ClickHouse/pull/34224) ([Anton Popov](https://github.com/CurtizJ)).
* Fix schema inference for table runction `s3`. [#34186](https://github.com/ClickHouse/ClickHouse/pull/34186) ([Kruglov Pavel](https://github.com/Avogar)).
* Fix rare and benign race condition in `HDFS`, `S3` and `URL` storage engines which can lead to additional connections. [#34172](https://github.com/ClickHouse/ClickHouse/pull/34172) ([alesapin](https://github.com/alesapin)).
* Fix bug which can rarely lead to error "Cannot read all data" while reading LowCardinality columns of MergeTree table engines family which stores data on remote file system like S3. [#34139](https://github.com/ClickHouse/ClickHouse/pull/34139) ([alesapin](https://github.com/alesapin)).
* Fix inserts to distributed tables in case of change of native protocol. The last change was in the version version 22.1, so there may be some failures of inserts to distributed tables after upgrade to that version. [#34132](https://github.com/ClickHouse/ClickHouse/pull/34132) ([Anton Popov](https://github.com/CurtizJ)).
* Fix possible data race in StorageFile that was introduced in https://github.com/ClickHouse/ClickHouse/pull/33960. Closes [#34111](https://github.com/ClickHouse/ClickHouse/issues/34111). [#34113](https://github.com/ClickHouse/ClickHouse/pull/34113) ([Kruglov Pavel](https://github.com/Avogar)).
* Fix bug which can rarely lead to error "Cannot read all data" while reading LowCardinality columns of MergeTree table engines family which stores data on remote file system like S3 (virtual filesystem over s3 is an experimental feature that is not ready for production). [#34139](https://github.com/ClickHouse/ClickHouse/pull/34139) ([alesapin](https://github.com/alesapin)).
* Fix inserts to distributed tables in case of a change of native protocol. The last change was in the version 22.1, so there may be some failures of inserts to distributed tables after upgrade to that version. [#34132](https://github.com/ClickHouse/ClickHouse/pull/34132) ([Anton Popov](https://github.com/CurtizJ)).
* Fix possible data race in `File` table engine that was introduced in [#33960](https://github.com/ClickHouse/ClickHouse/pull/33960). Closes [#34111](https://github.com/ClickHouse/ClickHouse/issues/34111). [#34113](https://github.com/ClickHouse/ClickHouse/pull/34113) ([Kruglov Pavel](https://github.com/Avogar)).
* Fixed minor race condition that might cause "intersecting parts" error in extremely rare cases after ZooKeeper connection loss. [#34096](https://github.com/ClickHouse/ClickHouse/pull/34096) ([tavplubix](https://github.com/tavplubix)).
* Fix asynchronous inserts with `Native` format. [#34068](https://github.com/ClickHouse/ClickHouse/pull/34068) ([Anton Popov](https://github.com/CurtizJ)).
* - Fixes `parallel_view_processing=0` not working when inserting into a table using `VALUES`. - Fixes `view_duration_ms` in the `query_views_log` not being set correctly for materialized views. [#34067](https://github.com/ClickHouse/ClickHouse/pull/34067) ([Raúl Marín](https://github.com/Algunenano)).
* Fix bug which lead to inability for server to start when both replicated access storage and keeper are used. Introduced two settings for keeper socket timeout instead of settings from default user: `keeper_server.socket_receive_timeout_sec` and `keeper_server.socket_send_timeout_sec`. Fixes [#33973](https://github.com/ClickHouse/ClickHouse/issues/33973). [#33988](https://github.com/ClickHouse/ClickHouse/pull/33988) ([alesapin](https://github.com/alesapin)).
* Fix bug which lead to inability for server to start when both replicated access storage and keeper (embedded in clickhouse-server) are used. Introduced two settings for keeper socket timeout instead of settings from default user: `keeper_server.socket_receive_timeout_sec` and `keeper_server.socket_send_timeout_sec`. Fixes [#33973](https://github.com/ClickHouse/ClickHouse/issues/33973). [#33988](https://github.com/ClickHouse/ClickHouse/pull/33988) ([alesapin](https://github.com/alesapin)).
* Fix segfault while parsing ORC file with corrupted footer. Closes [#33797](https://github.com/ClickHouse/ClickHouse/issues/33797). [#33984](https://github.com/ClickHouse/ClickHouse/pull/33984) ([Kruglov Pavel](https://github.com/Avogar)).
* Fix parsing IPv6 from query parameter and fix IPv6 to string conversion. Closes [#33928](https://github.com/ClickHouse/ClickHouse/issues/33928). [#33971](https://github.com/ClickHouse/ClickHouse/pull/33971) ([Kruglov Pavel](https://github.com/Avogar)).
* Fix parsing IPv6 from query parameter (prepared statements) and fix IPv6 to string conversion. Closes [#33928](https://github.com/ClickHouse/ClickHouse/issues/33928). [#33971](https://github.com/ClickHouse/ClickHouse/pull/33971) ([Kruglov Pavel](https://github.com/Avogar)).
* Fix crash while reading of nested tuples. Fixes [#33838](https://github.com/ClickHouse/ClickHouse/issues/33838). [#33956](https://github.com/ClickHouse/ClickHouse/pull/33956) ([Anton Popov](https://github.com/CurtizJ)).
* Fix usage of functions `array` and `tuple` with literal arguments in distributed queries. Previously it could lead to `Not found columns` exception. [#33938](https://github.com/ClickHouse/ClickHouse/pull/33938) ([Anton Popov](https://github.com/CurtizJ)).
* Fix parsing ZK metadata: now metadata from zookeeper compared with local metadata in canonical form. [#33933](https://github.com/ClickHouse/ClickHouse/pull/33933) ([sunny](https://github.com/sunny19930321)).
* Aggregate function combinator `-If` did not correctly process `Nullable` filter argument. This closes [#27073](https://github.com/ClickHouse/ClickHouse/issues/27073). [#33920](https://github.com/ClickHouse/ClickHouse/pull/33920) ([alexey-milovidov](https://github.com/alexey-milovidov)).
* Fix potential race condition when doing remote disk read. cc @Jokser. [#33912](https://github.com/ClickHouse/ClickHouse/pull/33912) ([Amos Bird](https://github.com/amosbird)).
* Fix crash if sql user defined function is created with lambda with non identifier arguments. Closes [#33866](https://github.com/ClickHouse/ClickHouse/issues/33866). [#33868](https://github.com/ClickHouse/ClickHouse/pull/33868) ([Maksim Kita](https://github.com/kitaisreal)).
* Fix potential race condition when doing remote disk read (virtual filesystem over s3 is an experimental feature that is not ready for production). [#33912](https://github.com/ClickHouse/ClickHouse/pull/33912) ([Amos Bird](https://github.com/amosbird)).
* Fix crash if SQL UDF is created with lambda with non identifier arguments. Closes [#33866](https://github.com/ClickHouse/ClickHouse/issues/33866). [#33868](https://github.com/ClickHouse/ClickHouse/pull/33868) ([Maksim Kita](https://github.com/kitaisreal)).
* Fix usage of sparse columns (which can be enabled by experimental setting `ratio_of_defaults_for_sparse_serialization`). [#33849](https://github.com/ClickHouse/ClickHouse/pull/33849) ([Anton Popov](https://github.com/CurtizJ)).
* Fixed `replica is not readonly` logical error on `SYSTEM RESTORE REPLICA` query when replica is actually readonly. Fixes [#33806](https://github.com/ClickHouse/ClickHouse/issues/33806). [#33847](https://github.com/ClickHouse/ClickHouse/pull/33847) ([tavplubix](https://github.com/tavplubix)).
* Fix memory leak in `clickhouse-keeper` in case of compression is used (default). [#33840](https://github.com/ClickHouse/ClickHouse/pull/33840) ([Azat Khuzhin](https://github.com/azat)).
* Fix KeyCondition with no common types available. [#33833](https://github.com/ClickHouse/ClickHouse/pull/33833) ([Amos Bird](https://github.com/amosbird)).
* Fix schema inference for JSONEachRow and JSONCompactEachRow. [#33830](https://github.com/ClickHouse/ClickHouse/pull/33830) ([Kruglov Pavel](https://github.com/Avogar)).
* Fix usage of external dictionaries with `Redis` source and large number of keys. [#33804](https://github.com/ClickHouse/ClickHouse/pull/33804) ([Anton Popov](https://github.com/CurtizJ)).
* Fix index analysis with no common types available. [#33833](https://github.com/ClickHouse/ClickHouse/pull/33833) ([Amos Bird](https://github.com/amosbird)).
* Fix schema inference for `JSONEachRow` and `JSONCompactEachRow`. [#33830](https://github.com/ClickHouse/ClickHouse/pull/33830) ([Kruglov Pavel](https://github.com/Avogar)).
* Fix usage of external dictionaries with `redis` source and large number of keys. [#33804](https://github.com/ClickHouse/ClickHouse/pull/33804) ([Anton Popov](https://github.com/CurtizJ)).
* Fix bug in client that led to 'Connection reset by peer' in server. Closes [#33309](https://github.com/ClickHouse/ClickHouse/issues/33309). [#33790](https://github.com/ClickHouse/ClickHouse/pull/33790) ([Kruglov Pavel](https://github.com/Avogar)).
* Fix parsing query INSERT INTO ... VALUES SETTINGS ... (...), ... [#33776](https://github.com/ClickHouse/ClickHouse/pull/33776) ([Kruglov Pavel](https://github.com/Avogar)).
* Fix bug of check table when creating data part with wide format and projection. [#33774](https://github.com/ClickHouse/ClickHouse/pull/33774) ([李扬](https://github.com/taiyang-li)).
* Fix tiny race between count() and INSERT/merges/... in MergeTree (it is possible to return incorrect number of rows for SELECT with optimize_trivial_count_query). [#33753](https://github.com/ClickHouse/ClickHouse/pull/33753) ([Azat Khuzhin](https://github.com/azat)).
* Throw exception when storage hdfs list directory failed. [#33724](https://github.com/ClickHouse/ClickHouse/pull/33724) ([LiuNeng](https://github.com/liuneng1994)).
* Fix mutation when table contains projections. This fixes [#33010](https://github.com/ClickHouse/ClickHouse/issues/33010) . This fixes [#33275](https://github.com/ClickHouse/ClickHouse/issues/33275) . [#33679](https://github.com/ClickHouse/ClickHouse/pull/33679) ([Amos Bird](https://github.com/amosbird)).
* Throw exception when directory listing request has failed in storage HDFS. [#33724](https://github.com/ClickHouse/ClickHouse/pull/33724) ([LiuNeng](https://github.com/liuneng1994)).
* Fix mutation when table contains projections. This fixes [#33010](https://github.com/ClickHouse/ClickHouse/issues/33010). This fixes [#33275](https://github.com/ClickHouse/ClickHouse/issues/33275). [#33679](https://github.com/ClickHouse/ClickHouse/pull/33679) ([Amos Bird](https://github.com/amosbird)).
* Correctly determine current database if `CREATE TEMPORARY TABLE AS SELECT` is queried inside a named HTTP session. This is a very rare use case. This closes [#8340](https://github.com/ClickHouse/ClickHouse/issues/8340). [#33676](https://github.com/ClickHouse/ClickHouse/pull/33676) ([alexey-milovidov](https://github.com/alexey-milovidov)).
* Allow some queries with sorting, LIMIT BY, ARRAY JOIN and lambda functions. This closes [#7462](https://github.com/ClickHouse/ClickHouse/issues/7462). [#33675](https://github.com/ClickHouse/ClickHouse/pull/33675) ([alexey-milovidov](https://github.com/alexey-milovidov)).
* Fix bug in zero copy replication which lead to data duplication in case of TTL move. Fixes [#33643](https://github.com/ClickHouse/ClickHouse/issues/33643). [#33642](https://github.com/ClickHouse/ClickHouse/pull/33642) ([alesapin](https://github.com/alesapin)).
* Fix `Chunk should have AggregatedChunkInfo in GroupingAggregatedTransform` (in case of `optimize_aggregation_in_order=1`). [#33637](https://github.com/ClickHouse/ClickHouse/pull/33637) ([Azat Khuzhin](https://github.com/azat)).
* Fix bug in "zero copy replication" (a feature that is under development and should not be used in production) which lead to data duplication in case of TTL move. Fixes [#33643](https://github.com/ClickHouse/ClickHouse/issues/33643). [#33642](https://github.com/ClickHouse/ClickHouse/pull/33642) ([alesapin](https://github.com/alesapin)).
* Fix `Chunk should have AggregatedChunkInfo in GroupingAggregatedTransform` (in case of `optimize_aggregation_in_order = 1`). [#33637](https://github.com/ClickHouse/ClickHouse/pull/33637) ([Azat Khuzhin](https://github.com/azat)).
* Fix error `Bad cast from type ... to DB::DataTypeArray` which may happen when table has `Nested` column with dots in name, and default value is generated for it (e.g. during insert, when column is not listed). Continuation of [#28762](https://github.com/ClickHouse/ClickHouse/issues/28762). [#33588](https://github.com/ClickHouse/ClickHouse/pull/33588) ([Alexey Pavlenko](https://github.com/alexeypavlenko)).
* TODO. [#33492](https://github.com/ClickHouse/ClickHouse/pull/33492) ([huzhichengdd](https://github.com/huzhichengdd)).
* Create a function escapeForLDAPFilter and use it to escape characters '(' and ')' in a final_user_dn variable. [#33401](https://github.com/ClickHouse/ClickHouse/pull/33401) ([IlyaTsoi](https://github.com/IlyaTsoi)).
* Fix lz4 compression for output. Closes [#31421](https://github.com/ClickHouse/ClickHouse/issues/31421). [#31862](https://github.com/ClickHouse/ClickHouse/pull/31862) ([Kruglov Pavel](https://github.com/Avogar)).
* add HashMethodSingleLowCardinalityColumn::findKey, avoid crash. [#34506](https://github.com/ClickHouse/ClickHouse/pull/34506) ([DR](https://github.com/freedomDR)).
* Fix inserting to temporary tables via gRPC. This PR fixes [#34347](https://github.com/ClickHouse/ClickHouse/issues/34347), issue `#2`. [#34364](https://github.com/ClickHouse/ClickHouse/pull/34364) ([Vitaly Baranov](https://github.com/vitlibar)).
* This PR fixes [#19429](https://github.com/ClickHouse/ClickHouse/issues/19429). [#34225](https://github.com/ClickHouse/ClickHouse/pull/34225) ([Vitaly Baranov](https://github.com/vitlibar)).
* This PR fixes [#18206](https://github.com/ClickHouse/ClickHouse/issues/18206). [#33977](https://github.com/ClickHouse/ClickHouse/pull/33977) ([Vitaly Baranov](https://github.com/vitlibar)).
* Export into `lz4` files has been fixed. Closes [#31421](https://github.com/ClickHouse/ClickHouse/issues/31421). [#31862](https://github.com/ClickHouse/ClickHouse/pull/31862) ([Kruglov Pavel](https://github.com/Avogar)).
* Fix potential crash if `group_by_overflow_mode` was set to `any` (approximate GROUP BY) and aggregation was performed by single column of type `LowCardinality`. [#34506](https://github.com/ClickHouse/ClickHouse/pull/34506) ([DR](https://github.com/freedomDR)).
* Fix inserting to temporary tables via gRPC client-server protocol. Fixes [#34347](https://github.com/ClickHouse/ClickHouse/issues/34347), issue `#2`. [#34364](https://github.com/ClickHouse/ClickHouse/pull/34364) ([Vitaly Baranov](https://github.com/vitlibar)).
* Fix issue [#19429](https://github.com/ClickHouse/ClickHouse/issues/19429). [#34225](https://github.com/ClickHouse/ClickHouse/pull/34225) ([Vitaly Baranov](https://github.com/vitlibar)).
* Fix issue [#18206](https://github.com/ClickHouse/ClickHouse/issues/18206). [#33977](https://github.com/ClickHouse/ClickHouse/pull/33977) ([Vitaly Baranov](https://github.com/vitlibar)).
* This PR allows using multiple LDAP storages in the same list of user directories. It worked earlier but was broken because LDAP tests are disabled (they are part of the testflows tests). [#33574](https://github.com/ClickHouse/ClickHouse/pull/33574) ([Vitaly Baranov](https://github.com/vitlibar)).