title_wip

- Experimental feature: Fix insertion to columns of type `Object` from multiple files, e.g. via table function `file` with globs. [#36762](https://github.com/ClickHouse/ClickHouse/pull/36762) ([Anton Popov](https://github.com/CurtizJ)).
- Fix timeouts in Hedged requests. Connection hang right after sending remote query could lead to eternal waiting. [#36749](https://github.com/ClickHouse/ClickHouse/pull/36749) ([Kruglov Pavel](https://github.com/Avogar)).
- Experimental feature: Fix a bug of `groupBitmapAndState`/`groupBitmapOrState`/`groupBitmapXorState` on distributed table. [#36739](https://github.com/ClickHouse/ClickHouse/pull/36739) ([Zhang Yifan](https://github.com/zhangyifan27)).
- Experimental feature: During the [test](https://s3.amazonaws.com/clickhouse-test-reports/36376/1cb1c7275cb53769ab826772db9b71361bb3e413/stress_test__thread__actions_/clickhouse-server.clean.log) in [PR](https://github.com/ClickHouse/ClickHouse/pull/36376), I found that the one cache class was initialized twice, it throws a exception. Although the cause of this problem is not clear, there should be code logic of repeatedly loading disk in ClickHouse, so we need to make special judgment for this situation. [#36737](https://github.com/ClickHouse/ClickHouse/pull/36737) ([Han Shukai](https://github.com/KinderRiven)).
- Fix vertical merges in wide parts. Previously an exception `There is no column` can be thrown during merge. [#36707](https://github.com/ClickHouse/ClickHouse/pull/36707) ([Anton Popov](https://github.com/CurtizJ)).
- Fix server reload on port change (do not wait for current connections from query context). [#36700](https://github.com/ClickHouse/ClickHouse/pull/36700) ([Azat Khuzhin](https://github.com/azat)).
- Experimental feature: In the previous [PR](https://github.com/ClickHouse/ClickHouse/pull/36376), I found that testing (stateless tests, flaky check (address, actions)) is timeout. Moreover, testing locally can also trigger unstable system deadlocks. This problem still exists when using the latest source code of master. [#36697](https://github.com/ClickHouse/ClickHouse/pull/36697) ([Han Shukai](https://github.com/KinderRiven)).
- Experimental feature: Fix server restart if cache configuration changed. [#36685](https://github.com/ClickHouse/ClickHouse/pull/36685) ([Kseniia Sumarokova](https://github.com/kssenii)).
- Fix possible heap-use-after-free in schema inference. Closes [#36661](https://github.com/ClickHouse/ClickHouse/issues/36661). [#36679](https://github.com/ClickHouse/ClickHouse/pull/36679) ([Kruglov Pavel](https://github.com/Avogar)).
- Fixed parsing of query settings in `CREATE` query when engine is not specified. Fixes <https://github.com/ClickHouse/ClickHouse/pull/34187#issuecomment-1103812419>. [#36642](https://github.com/ClickHouse/ClickHouse/pull/36642) ([tavplubix](https://github.com/tavplubix)).
- Experimental feature: Fix merges of wide parts with type `Object`. [#36637](https://github.com/ClickHouse/ClickHouse/pull/36637) ([Anton Popov](https://github.com/CurtizJ)).
- Fix format crash when default expression follow EPHEMERAL not literal. Closes [#36618](https://github.com/ClickHouse/ClickHouse/issues/36618). [#36633](https://github.com/ClickHouse/ClickHouse/pull/36633) ([flynn](https://github.com/ucasfl)).
- Fix `Missing column` exception which could happen while using `INTERPOLATE` with `ENGINE = MergeTree` table. [#36549](https://github.com/ClickHouse/ClickHouse/pull/36549) ([Yakov Olkhovskiy](https://github.com/yakov-olkhovskiy)).
- Fix potential error with literals in `WHERE` for join queries. Close [#36279](https://github.com/ClickHouse/ClickHouse/issues/36279). [#36542](https://github.com/ClickHouse/ClickHouse/pull/36542) ([Vladimir C](https://github.com/vdimir)).
- Fix offset update ReadBufferFromEncryptedFile, which could cause undefined behaviour. [#36493](https://github.com/ClickHouse/ClickHouse/pull/36493) ([Kseniia Sumarokova](https://github.com/kssenii)).
- Fix hostname sanity checks for Keeper cluster configuration. Add `keeper_server.host_checks_enabled` config to enable/disable those checks. [#36492](https://github.com/ClickHouse/ClickHouse/pull/36492) ([Antonio Andelic](https://github.com/antonio2368)).
- Fix usage of executable user defined functions in GROUP BY. Before executable user defined functions cannot be used as expressions in GROUP BY. Closes [#36448](https://github.com/ClickHouse/ClickHouse/issues/36448). [#36486](https://github.com/ClickHouse/ClickHouse/pull/36486) ([Maksim Kita](https://github.com/kitaisreal)).
- Fix possible exception with unknown packet from server in client. [#36481](https://github.com/ClickHouse/ClickHouse/pull/36481) ([Kseniia Sumarokova](https://github.com/kssenii)).
- Experimental feature (please never use `system.session_log`, it is going to be removed): Add missing enum values in system.session\_log table. Closes [#36474](https://github.com/ClickHouse/ClickHouse/issues/36474). [#36480](https://github.com/ClickHouse/ClickHouse/pull/36480) ([Memo](https://github.com/Joeywzr)).
- Fix bug in s3Cluster schema inference that let to the fact that not all data was read in the select from s3Cluster. The bug appeared in <https://github.com/ClickHouse/ClickHouse/pull/35544>. [#36434](https://github.com/ClickHouse/ClickHouse/pull/36434) ([Kruglov Pavel](https://github.com/Avogar)).
- Fix nullptr dereference in JOIN and COLUMNS matcher. This fixes [#36416](https://github.com/ClickHouse/ClickHouse/issues/36416). This is for <https://github.com/ClickHouse/ClickHouse/pull/36417>. [#36430](https://github.com/ClickHouse/ClickHouse/pull/36430) ([Amos Bird](https://github.com/amosbird)).
- Fix dictionary reload for `ClickHouseDictionarySource` if it contains scalar subqueries. [#36390](https://github.com/ClickHouse/ClickHouse/pull/36390) ([lthaooo](https://github.com/lthaooo)).
- Fix assertion in JOIN, close [#36199](https://github.com/ClickHouse/ClickHouse/issues/36199). [#36201](https://github.com/ClickHouse/ClickHouse/pull/36201) ([Vladimir C](https://github.com/vdimir)).
- Queries with aliases inside special operators returned parsing error (was broken in 22.1). Example: `SELECT substring('test' AS t, 1, 1)`. [#36167](https://github.com/ClickHouse/ClickHouse/pull/36167) ([Maksim Kita](https://github.com/kitaisreal)).
- Experimental feature: Fix insertion of complex JSONs with nested arrays to columns of type `Object`. [#36077](https://github.com/ClickHouse/ClickHouse/pull/36077) ([Anton Popov](https://github.com/CurtizJ)).
- Fix ALTER DROP COLUMN of nested column with compact parts (i.e. `ALTER TABLE x DROP COLUMN n`, when there is column `n.d`). [#35797](https://github.com/ClickHouse/ClickHouse/pull/35797) ([Azat Khuzhin](https://github.com/azat)).
- Fix substring function range error length when `offset` and `length` is negative constant and `s` is not constant. [#33861](https://github.com/ClickHouse/ClickHouse/pull/33861) ([RogerYK](https://github.com/RogerYK)).