ClickHouse/docs/changelogs/v23.8.3.48-lts.md

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1	2023

2023 Changelog

ClickHouse release v23.8.3.48-lts (ebe4eb3d23) FIXME as compared to v23.8.2.7-lts (f73c8f3787)

Improvement

• Backported in #54287: Enable allow_remove_stale_moving_parts by default. #54260 (vdimir).
• Backported in #55057: ProfileEvents added ContextLockWaitMicroseconds event. #55029 (Maksim Kita).

Build/Testing/Packaging Improvement

• Backported in #54702: Enrich changed_images.json with the latest tag from master for images that are not changed in the pull request. #54369 (János Benjamin Antal).
• Backported in #54743: Remove redundant clickhouse-keeper-client symlink. #54587 (Tomas Barton).
• Backported in #54685: We build and upload them for every push, which isn't worth it. #54675 (Mikhail f. Shiryaev).

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

• Fix: moved to prewhere condition actions can lose column #53492 (Yakov Olkhovskiy).
• Fix: parallel replicas over distributed with prefer_localhost_replica=1 #54334 (Igor Nikonov).
• Fix possible error 'URI contains invalid characters' in s3 table function #54373 (Kruglov Pavel).
• Check for overflow before addition in analysisOfVariance function #54385 (Antonio Andelic).
• reproduce and fix the bug in removeSharedRecursive #54430 (Sema Checherinda).
• Fix aggregate projections with normalized states #54480 (Amos Bird).
• Fix possible parsing error in WithNames formats with disabled input_format_with_names_use_header #54513 (Kruglov Pavel).
• Fix zero copy garbage #54550 (Alexander Tokmakov).
• Fix race in ColumnUnique #54575 (Nikita Taranov).
• Fix serialization of ColumnDecimal #54601 (Nikita Taranov).
• Fix virtual columns having incorrect values after ORDER BY #54811 (Michael Kolupaev).
• Fix Keeper segfault during shutdown #54841 (Antonio Andelic).
• Rebuild minmax_count_projection when partition key gets modified #54943 (Amos Bird).

NOT FOR CHANGELOG / INSIGNIFICANT

• Test libunwind changes. #51436 (Nikolai Kochetov).
• Use pathlib.Path in S3Helper, rewrite build reports, improve small things #54010 (Mikhail f. Shiryaev).
• Properly re-initialize ZooKeeper fault injection #54251 (Alexander Gololobov).
• Fix segfault in system.zookeeper #54326 (Alexander Tokmakov).
• Update automated commit status comment #54441 (vdimir).
• Adjusting num_streams by expected work in StorageS3 #54815 (pufit).