ClickHouse/docs/changelogs/v22.8.9.24-lts.md

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1	2022

2022 Changelog

ClickHouse release v22.8.9.24-lts (a1b69551d4) FIXME as compared to v22.8.8.3-lts (ac5a6cabab)

Performance Improvement

• Backported in #43012: Keeper performance improvement: improve commit performance for cases when many different nodes have uncommitted states. This should help with cases when a follower node can't sync fast enough. #42926 (Antonio Andelic).

Improvement

• Backported in #42840: Update tzdata to 2022f. Mexico will no longer observe DST except near the US border: https://www.timeanddate.com/news/time/mexico-abolishes-dst-2022.html. Chihuahua moves to year-round UTC-6 on 2022-10-30. Fiji no longer observes DST. See https://github.com/google/cctz/pull/235 and https://bugs.launchpad.net/ubuntu/+source/tzdata/+bug/1995209. #42796 (Alexey Milovidov).

Build/Testing/Packaging Improvement

• Backported in #42964: Before the fix, the user-defined config was preserved by RPM in $file.rpmsave. The PR fixes it and won't replace the user's files from packages. #42936 (Mikhail f. Shiryaev).
• Backported in #43040: Add a CI step to mark commits as ready for release; soft-forbid launching a release script from branches but master. #43017 (Mikhail f. Shiryaev).

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

• Backported in #42720: Fixed Unknown identifier (aggregate-function) exception which appears when a user tries to calculate WINDOW ORDER BY/PARTITION BY expressions over aggregate functions: CREATE TABLE default.tenk1 ( `unique1` Int32, `unique2` Int32, `ten` Int32 ) ENGINE = MergeTree ORDER BY tuple() SETTINGS index_granularity = 8192; SELECT ten, sum(unique1) + sum(unique2) AS res, rank() OVER (ORDER BY sum(unique1) + sum(unique2) ASC) AS rank FROM _complex GROUP BY ten ORDER BY ten ASC; which gives: Code: 47. DB::Exception: Received from localhost:9000. DB::Exception: Unknown identifier: sum(unique1); there are columns: unique1, unique2, ten: While processing sum(unique1) + sum(unique2) ASC. (UNKNOWN_IDENTIFIER). #39762 (Vladimir Chebotaryov).
• Backported in #42748: A segmentation fault related to DNS & c-ares has been reported. The below error ocurred in multiple threads: 2022-09-28 15:41:19.008,2022.09.28 15:41:19.008088 [ 356 ] {} <Fatal> BaseDaemon: ######################################## 2022-09-28 15:41:19.008,"2022.09.28 15:41:19.008147 [ 356 ] {} <Fatal> BaseDaemon: (version 22.8.5.29 (official build), build id: 92504ACA0B8E2267) (from thread 353) (no query) Received signal Segmentation fault (11)" 2022-09-28 15:41:19.008,2022.09.28 15:41:19.008196 [ 356 ] {} <Fatal> BaseDaemon: Address: 0xf Access: write. Address not mapped to object. 2022-09-28 15:41:19.008,2022.09.28 15:41:19.008216 [ 356 ] {} <Fatal> BaseDaemon: Stack trace: 0x188f8212 0x1626851b 0x1626a69e 0x16269b3f 0x16267eab 0x13cf8284 0x13d24afc 0x13c5217e 0x14ec2495 0x15ba440f 0x15b9d13b 0x15bb2699 0x1891ccb3 0x1891e00d 0x18ae0769 0x18ade022 0x7f76aa985609 0x7f76aa8aa133 2022-09-28 15:41:19.008,2022.09.28 15:41:19.008274 [ 356 ] {} <Fatal> BaseDaemon: 2. Poco::Net::IPAddress::family() const @ 0x188f8212 in /usr/bin/clickhouse 2022-09-28 15:41:19.008,2022.09.28 15:41:19.008297 [ 356 ] {} <Fatal> BaseDaemon: 3. ? @ 0x1626851b in /usr/bin/clickhouse 2022-09-28 15:41:19.008,2022.09.28 15:41:19.008309 [ 356 ] {} <Fatal> BaseDaemon: 4. ? @ 0x1626a69e in /usr/bin/clickhouse. #42234 (Arthur Passos).
• Backported in #43062: Fix rare NOT_FOUND_COLUMN_IN_BLOCK error when projection is possible to use but there is no projection available. This fixes #42771 . The bug was introduced in https://github.com/ClickHouse/ClickHouse/pull/25563. #42938 (Amos Bird).

NOT FOR CHANGELOG / INSIGNIFICANT

• Do not warn about kvm-clock #41217 (Sergei Trifonov).
• Revert revert 41268 disable s3 parallel write for part moves to disk s3 #42617 (Nikolai Kochetov).
• Always run BuilderReport and BuilderSpecialReport in all CI types #42684 (Mikhail f. Shiryaev).