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ClickHouse/docs/changelogs/v21.10.2.15-stable.md
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---
sidebar_position: 1
sidebar_label: 2022
---
# 2022 Changelog
### ClickHouse release v21.10.2.15-stable FIXME as compared to v21.10.1.8013-prestable
#### Improvement
* Backported in [#29944](https://github.com/ClickHouse/ClickHouse/issues/29944): Update zoneinfo files to 2021c. [#29925](https://github.com/ClickHouse/ClickHouse/pull/29925) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
#### Bug Fix
* Backported in [#29776](https://github.com/ClickHouse/ClickHouse/issues/29776): Allow using a materialized column as the sharding key in a distributed table even if `insert_allow_materialized_columns=0`:. [#28637](https://github.com/ClickHouse/ClickHouse/pull/28637) ([Vitaly Baranov](https://github.com/vitlibar)).
* Backported in [#28792](https://github.com/ClickHouse/ClickHouse/issues/28792): Fix transformation of disjunctions chain to `IN` (controlled by settings `optimize_min_equality_disjunction_chain_length`) in distributed queries with settings `legacy_column_name_of_tuple_literal = 0`. [#28658](https://github.com/ClickHouse/ClickHouse/pull/28658) ([Anton Popov](https://github.com/CurtizJ)).
* Backported in [#29127](https://github.com/ClickHouse/ClickHouse/issues/29127): Fix bug in `clickhouse-keeper-converter` which can lead to incorrect ZooKeeper log deserialization. [#29071](https://github.com/ClickHouse/ClickHouse/pull/29071) ([小路](https://github.com/nicelulu)).
* Backported in [#29970](https://github.com/ClickHouse/ClickHouse/issues/29970): Fix shutdown of `AccessControlManager`. Now there can't be reloading of the configuration after AccessControlManager has been destroyed. This PR fixes the flaky test [test_user_directories/test.py::test_relative_path](https://clickhouse-test-reports.s3.yandex.net/0/f0e3122507ed8bea3f177495531c7d56bcb32466/integration_tests_(thread).html). [#29951](https://github.com/ClickHouse/ClickHouse/pull/29951) ([Vitaly Baranov](https://github.com/vitlibar)).
* Backported in [#30051](https://github.com/ClickHouse/ClickHouse/issues/30051): Fix releasing query ID and session ID at the end of query processing while handing gRPC call. This PR fixes flaky test [test_grpc_protocol/test.py::test_session](https://clickhouse-test-reports.s3.yandex.net/0/1ac03811a2df9717fa7c633d1af03def821d24b6/integration_tests_(memory).html). [#29954](https://github.com/ClickHouse/ClickHouse/pull/29954) ([Vitaly Baranov](https://github.com/vitlibar)).
#### Bug Fix (user-visible misbehaviour in official stable release)
* Backported in [#29054](https://github.com/ClickHouse/ClickHouse/issues/29054): Fix invalid constant type conversion when nullable or lowcardinality primary key is used. [#28636](https://github.com/ClickHouse/ClickHouse/pull/28636) ([Amos Bird](https://github.com/amosbird)).
* Backported in [#28795](https://github.com/ClickHouse/ClickHouse/issues/28795): - Fix the number of arguments required by s2RectAdd and s2RectContains functions. [#28663](https://github.com/ClickHouse/ClickHouse/pull/28663) ([Bharat Nallan](https://github.com/bharatnc)).
* Backported in [#28794](https://github.com/ClickHouse/ClickHouse/issues/28794): Add Settings.Names, Settings.Values aliases for system.processes table. [#28685](https://github.com/ClickHouse/ClickHouse/pull/28685) ([Vitaly Orlov](https://github.com/orloffv)).
* Backported in [#28793](https://github.com/ClickHouse/ClickHouse/issues/28793): Fix the coredump in the creation of distributed tables, when the parameters passed in are wrong. [#28686](https://github.com/ClickHouse/ClickHouse/pull/28686) ([Zhiyong Wang](https://github.com/ljcui)).
* Backported in [#28812](https://github.com/ClickHouse/ClickHouse/issues/28812): Fix possible crash for `SELECT` with partially created aggregate projection in case of exception. [#28700](https://github.com/ClickHouse/ClickHouse/pull/28700) ([Amos Bird](https://github.com/amosbird)).
* Backported in [#28790](https://github.com/ClickHouse/ClickHouse/issues/28790): Fix benign race condition in ReplicatedMergeTreeQueue. Shouldn't be visible for user, but can lead to subtle bugs. [#28734](https://github.com/ClickHouse/ClickHouse/pull/28734) ([alesapin](https://github.com/alesapin)).
* Backported in [#29150](https://github.com/ClickHouse/ClickHouse/issues/29150): Fix extremely rare case when ReplicatedMergeTree replicas can diverge after hard reboot of all replicas. The error looks like `Part ... intersects (previous|next) part ...`. [#28817](https://github.com/ClickHouse/ClickHouse/pull/28817) ([alesapin](https://github.com/alesapin)).
* Backported in [#28843](https://github.com/ClickHouse/ClickHouse/issues/28843): Fix expressions compilation with short circuit evaluation. [#28821](https://github.com/ClickHouse/ClickHouse/pull/28821) ([Azat Khuzhin](https://github.com/azat)).
* Backported in [#28992](https://github.com/ClickHouse/ClickHouse/issues/28992): Fixed a race condition between `DROP PART` and `REPLACE/MOVE PARTITION` that might cause replicas to diverge in rare cases. [#28864](https://github.com/ClickHouse/ClickHouse/pull/28864) ([Alexander Tokmakov](https://github.com/tavplubix)).
* Backported in [#28950](https://github.com/ClickHouse/ClickHouse/issues/28950): Fix reading of subcolumns from compact parts. [#28873](https://github.com/ClickHouse/ClickHouse/pull/28873) ([Anton Popov](https://github.com/CurtizJ)).
* Backported in [#28926](https://github.com/ClickHouse/ClickHouse/issues/28926): Fix bug with LowCardinality in short-curcuit function evaluation. Closes [#28884](https://github.com/ClickHouse/ClickHouse/issues/28884). [#28887](https://github.com/ClickHouse/ClickHouse/pull/28887) ([Kruglov Pavel](https://github.com/Avogar)).
* Backported in [#29162](https://github.com/ClickHouse/ClickHouse/issues/29162): Fix queries to external databases (i.e. MySQL) with multiple columns in IN ( i.e. `(k,v) IN ((1, 2))` ) (but note that this has some backward incompatibility for the `clickhouse-copier` since it uses alias for tuple element). [#28888](https://github.com/ClickHouse/ClickHouse/pull/28888) ([Azat Khuzhin](https://github.com/azat)).
* Backported in [#29108](https://github.com/ClickHouse/ClickHouse/issues/29108): Fix waiting for mutation with `mutations_sync=2`. [#28889](https://github.com/ClickHouse/ClickHouse/pull/28889) ([Azat Khuzhin](https://github.com/azat)).
* Backported in [#28928](https://github.com/ClickHouse/ClickHouse/issues/28928): Fix higher-order array functions (`SIGSEGV` for `arrayCompact`/`ILLEGAL_COLUMN` for `arrayDifference`/`arrayCumSumNonNegative`) with consts. [#28904](https://github.com/ClickHouse/ClickHouse/pull/28904) ([Azat Khuzhin](https://github.com/azat)).
* Backported in [#28951](https://github.com/ClickHouse/ClickHouse/issues/28951): Fix bad optimizations of ORDER BY if it contains WITH FILL. This closes [#28908](https://github.com/ClickHouse/ClickHouse/issues/28908). This closes [#26049](https://github.com/ClickHouse/ClickHouse/issues/26049). [#28910](https://github.com/ClickHouse/ClickHouse/pull/28910) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
* Backported in [#29023](https://github.com/ClickHouse/ClickHouse/issues/29023): Fix the number of threads used in `GLOBAL IN` subquery (it was executed in single threads since [#19414](https://github.com/ClickHouse/ClickHouse/issues/19414) bugfix). [#28997](https://github.com/ClickHouse/ClickHouse/pull/28997) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
* Backported in [#29814](https://github.com/ClickHouse/ClickHouse/issues/29814): Do not allow to reuse previous credentials in case of inter-server secret (Before INSERT via Buffer/Kafka to Distributed table with interserver secret configured for that cluster, may re-use previously set user for that connection). [#29060](https://github.com/ClickHouse/ClickHouse/pull/29060) ([Azat Khuzhin](https://github.com/azat)).
* Backported in [#29192](https://github.com/ClickHouse/ClickHouse/issues/29192): Fix segfault while inserting into column with type LowCardinality(Nullable) in Avro input format. [#29132](https://github.com/ClickHouse/ClickHouse/pull/29132) ([Kruglov Pavel](https://github.com/Avogar)).
* Backported in [#29400](https://github.com/ClickHouse/ClickHouse/issues/29400): Send normal `Database doesn't exist error` (`UNKNOWN_DATABASE`) to the client (via TCP) instead of `Attempt to read after eof` (`ATTEMPT_TO_READ_AFTER_EOF`). [#29229](https://github.com/ClickHouse/ClickHouse/pull/29229) ([Azat Khuzhin](https://github.com/azat)).
* Backported in [#29358](https://github.com/ClickHouse/ClickHouse/issues/29358): Fix possible `Table columns structure in ZooKeeper is different from local table structure` exception while recreating or creating new replicas of `ReplicatedMergeTree`, when one of table columns have default expressions with case-insensitive functions. [#29266](https://github.com/ClickHouse/ClickHouse/pull/29266) ([Anton Popov](https://github.com/CurtizJ)).
* Backported in [#29450](https://github.com/ClickHouse/ClickHouse/issues/29450): Fix failed assertion in ReadBufferFromHDFS. Update libhdfs3 library to be able to run in tests in debug. Closes [#29251](https://github.com/ClickHouse/ClickHouse/issues/29251). Closes [#27814](https://github.com/ClickHouse/ClickHouse/issues/27814). [#29276](https://github.com/ClickHouse/ClickHouse/pull/29276) ([Kseniia Sumarokova](https://github.com/kssenii)).
* Backported in [#29302](https://github.com/ClickHouse/ClickHouse/issues/29302): Fix connection timeouts (`send_timeout`/`receive_timeout`). [#29282](https://github.com/ClickHouse/ClickHouse/pull/29282) ([Azat Khuzhin](https://github.com/azat)).
* Backported in [#29382](https://github.com/ClickHouse/ClickHouse/issues/29382): Remove window function `nth_value` as it is not memory-safe. This closes [#29347](https://github.com/ClickHouse/ClickHouse/issues/29347). [#29348](https://github.com/ClickHouse/ClickHouse/pull/29348) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
* Backported in [#29439](https://github.com/ClickHouse/ClickHouse/issues/29439): Fix replicated access storage not shutting down cleanly when misconfigured. [#29388](https://github.com/ClickHouse/ClickHouse/pull/29388) ([Kevin Michel](https://github.com/kmichel-aiven)).
* Backported in [#29488](https://github.com/ClickHouse/ClickHouse/issues/29488): Fix Logical error `Cannot capture columns` in functions greatest/least. Closes [#29334](https://github.com/ClickHouse/ClickHouse/issues/29334). [#29454](https://github.com/ClickHouse/ClickHouse/pull/29454) ([Kruglov Pavel](https://github.com/Avogar)).
* Backported in [#29537](https://github.com/ClickHouse/ClickHouse/issues/29537): Fix possible `Block structure mismatch` for subqueries with pushed-down `HAVING` predicate. Fixes [#29010](https://github.com/ClickHouse/ClickHouse/issues/29010). [#29475](https://github.com/ClickHouse/ClickHouse/pull/29475) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
* Backported in [#29590](https://github.com/ClickHouse/ClickHouse/issues/29590): In ODBC bridge add retries for error Invalid cursor state. It is a retriable error. Closes [#29473](https://github.com/ClickHouse/ClickHouse/issues/29473). [#29518](https://github.com/ClickHouse/ClickHouse/pull/29518) ([Kseniia Sumarokova](https://github.com/kssenii)).
* Backported in [#29571](https://github.com/ClickHouse/ClickHouse/issues/29571): Fix bug in check `pathStartsWith` becuase there was bug with the usage of `std::mismatch`: ` The behavior is undefined if the second range is shorter than the first range.`. [#29531](https://github.com/ClickHouse/ClickHouse/pull/29531) ([Kseniia Sumarokova](https://github.com/kssenii)).
* Backported in [#29725](https://github.com/ClickHouse/ClickHouse/issues/29725): Fix null deference for `GROUP BY WITH TOTALS HAVING` (when the column from `HAVING` wasn't selected). [#29553](https://github.com/ClickHouse/ClickHouse/pull/29553) ([Azat Khuzhin](https://github.com/azat)).
* Backported in [#29629](https://github.com/ClickHouse/ClickHouse/issues/29629): Fix rare segfault in `ALTER MODIFY` query when using incorrect table identifier in `DEFAULT` expression like `x.y.z...` Fixes [#29184](https://github.com/ClickHouse/ClickHouse/issues/29184). [#29573](https://github.com/ClickHouse/ClickHouse/pull/29573) ([alesapin](https://github.com/alesapin)).
* Backported in [#29657](https://github.com/ClickHouse/ClickHouse/issues/29657): Fix JIT expression compilation with aliases and short-circuit expression evaluation. Closes [#29403](https://github.com/ClickHouse/ClickHouse/issues/29403). [#29574](https://github.com/ClickHouse/ClickHouse/pull/29574) ([Maksim Kita](https://github.com/kitaisreal)).
* Backported in [#29749](https://github.com/ClickHouse/ClickHouse/issues/29749): Condition in filter predicate could be lost after push-down optimisation. [#29625](https://github.com/ClickHouse/ClickHouse/pull/29625) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
* Backported in [#29850](https://github.com/ClickHouse/ClickHouse/issues/29850): Fix concurrent access to `LowCardinality` during `GROUP BY` (leads to SIGSEGV). [#29782](https://github.com/ClickHouse/ClickHouse/pull/29782) ([Azat Khuzhin](https://github.com/azat)).
* Backported in [#29910](https://github.com/ClickHouse/ClickHouse/issues/29910): Fix bad cast in `ATTACH TABLE ... FROM 'path'` query when non-string literal is used instead of path. It may lead to reading of uninitialized memory. [#29790](https://github.com/ClickHouse/ClickHouse/pull/29790) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
* Backported in [#29866](https://github.com/ClickHouse/ClickHouse/issues/29866): Avoid `Timeout exceeded: elapsed 18446744073.709553 seconds` error that might happen in extremely rare cases, presumably due to some bug in kernel. Fixes [#29154](https://github.com/ClickHouse/ClickHouse/issues/29154). [#29811](https://github.com/ClickHouse/ClickHouse/pull/29811) ([Alexander Tokmakov](https://github.com/tavplubix)).
* Backported in [#30023](https://github.com/ClickHouse/ClickHouse/issues/30023): MaterializedMySQL: Fix an issue where if the connection to MySQL was lost, only parts of a transaction could be processed. [#29837](https://github.com/ClickHouse/ClickHouse/pull/29837) ([Håvard Kvålen](https://github.com/havardk)).
* Backported in [#29876](https://github.com/ClickHouse/ClickHouse/issues/29876): Fix system tables recreation check (fails to detect changes in enum values). [#29857](https://github.com/ClickHouse/ClickHouse/pull/29857) ([Azat Khuzhin](https://github.com/azat)).
* Backported in [#30058](https://github.com/ClickHouse/ClickHouse/issues/30058): Fix potential resource leak of the concurrent query limit of merge tree tables introduced in https://github.com/ClickHouse/ClickHouse/pull/19544 . [#29879](https://github.com/ClickHouse/ClickHouse/pull/29879) ([Amos Bird](https://github.com/amosbird)).
* Backported in [#30208](https://github.com/ClickHouse/ClickHouse/issues/30208): Fix data-race between `LogSink::writeMarks()` and `LogSource` in `StorageLog`. [#29946](https://github.com/ClickHouse/ClickHouse/pull/29946) ([Azat Khuzhin](https://github.com/azat)).
* Backported in [#30213](https://github.com/ClickHouse/ClickHouse/issues/30213): Fix possible data-race between `FileChecker` and `StorageLog`/`StorageStripeLog`. [#29959](https://github.com/ClickHouse/ClickHouse/pull/29959) ([Azat Khuzhin](https://github.com/azat)).
* Backported in [#30067](https://github.com/ClickHouse/ClickHouse/issues/30067): Fix crash of sample by `tuple()`, closes [#30004](https://github.com/ClickHouse/ClickHouse/issues/30004). [#30016](https://github.com/ClickHouse/ClickHouse/pull/30016) ([flynn](https://github.com/ucasfl)).
* Backported in [#30127](https://github.com/ClickHouse/ClickHouse/issues/30127): Dropped `Memory` database might reappear after server restart, it's fixed ([#29795](https://github.com/ClickHouse/ClickHouse/issues/29795)). Also added `force_remove_data_recursively_on_drop` setting as a workaround for `Directory not empty` error when dropping `Ordinary` database (because it's not possible to remove data leftovers manually in cloud environment). [#30054](https://github.com/ClickHouse/ClickHouse/pull/30054) ([Alexander Tokmakov](https://github.com/tavplubix)).
* Backported in [#30232](https://github.com/ClickHouse/ClickHouse/issues/30232): Fix INSERT SELECT incorrectly fills MATERIALIZED column based of Nullable column. [#30189](https://github.com/ClickHouse/ClickHouse/pull/30189) ([Azat Khuzhin](https://github.com/azat)).
* Backported in [#30264](https://github.com/ClickHouse/ClickHouse/issues/30264): FlatDictionary, HashedDictionary fix bytes_allocated calculation for nullable attributes. [#30238](https://github.com/ClickHouse/ClickHouse/pull/30238) ([Maksim Kita](https://github.com/kitaisreal)).
* Backported in [#30307](https://github.com/ClickHouse/ClickHouse/issues/30307): Fix crash with shortcircuit and lowcardinality in multiIf. [#30243](https://github.com/ClickHouse/ClickHouse/pull/30243) ([Raúl Marín](https://github.com/Algunenano)).
* Backported in [#30291](https://github.com/ClickHouse/ClickHouse/issues/30291): Fix ComplexKeyHashedDictionary, ComplexKeySparseHashedDictionary parsing `preallocate` option from layout config. [#30246](https://github.com/ClickHouse/ClickHouse/pull/30246) ([Maksim Kita](https://github.com/kitaisreal)).
#### NO CL CATEGORY
* Avoid deadlocks when reading and writting on JOIN Engine tables at the same time. [#30182](https://github.com/ClickHouse/ClickHouse/pull/30182) ([Raúl Marín](https://github.com/Algunenano)).
#### NOT FOR CHANGELOG / INSIGNIFICANT
* Fix usage of nested columns with non-array columns with the same prefix [2] [#28762](https://github.com/ClickHouse/ClickHouse/pull/28762) ([Anton Popov](https://github.com/CurtizJ)).
* Lower compiled_expression_cache_size to 128MB [#28816](https://github.com/ClickHouse/ClickHouse/pull/28816) ([Maksim Kita](https://github.com/kitaisreal)).
* Column default dictGet identifier fix [#28863](https://github.com/ClickHouse/ClickHouse/pull/28863) ([Maksim Kita](https://github.com/kitaisreal)).
* Do not add const group by key for query with only having. [#28975](https://github.com/ClickHouse/ClickHouse/pull/28975) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
* Merging [#27963](https://github.com/ClickHouse/ClickHouse/issues/27963) [#29063](https://github.com/ClickHouse/ClickHouse/pull/29063) ([Maksim Kita](https://github.com/kitaisreal)).
* Fix terminate on uncaught exception [#29216](https://github.com/ClickHouse/ClickHouse/pull/29216) ([Alexander Tokmakov](https://github.com/tavplubix)).
* Fix arcadia (pre)stable 21.10 build [#29250](https://github.com/ClickHouse/ClickHouse/pull/29250) ([DimasKovas](https://github.com/DimasKovas)).
* May be fix s3 tests [#29762](https://github.com/ClickHouse/ClickHouse/pull/29762) ([Kseniia Sumarokova](https://github.com/kssenii)).
* Remove unnecessary PEERDIR to libcxx-filesystem [#29798](https://github.com/ClickHouse/ClickHouse/pull/29798) ([Yuriy Chernyshov](https://github.com/georgthegreat)).
* Update BoringSSL [#29998](https://github.com/ClickHouse/ClickHouse/pull/29998) ([Filatenkov Artur](https://github.com/FArthur-cmd)).
* SQL user defined functions fix alias [#30075](https://github.com/ClickHouse/ClickHouse/pull/30075) ([Maksim Kita](https://github.com/kitaisreal)).
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