ClickHouse/docs/changelogs/v23.3.20.27-lts.md

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1	2024

2024 Changelog

ClickHouse release v23.3.20.27-lts (cc974ba4f8) FIXME as compared to v23.3.19.32-lts (c4d4ca8ec0)

Improvement

• Backported in #58818: Add SYSTEM JEMALLOC PURGE for purging unused jemalloc pages, SYSTEM JEMALLOC [ ENABLE | DISABLE | FLUSH ] PROFILE for controlling jemalloc profile if the profiler is enabled. Add jemalloc-related 4LW command in Keeper: jmst for dumping jemalloc stats, jmfp, jmep, jmdp for controlling jemalloc profile if the profiler is enabled. #58665 (Antonio Andelic).

Build/Testing/Packaging Improvement

• Backported in #59877: If you want to run initdb scripts every time when ClickHouse container is starting you shoud initialize environment varible CLICKHOUSE_ALWAYS_RUN_INITDB_SCRIPTS. #59808 (Alexander Nikolaev).

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

• Fix working with read buffers in StreamingFormatExecutor #57438 (Kruglov Pavel).
• Fix double destroy call on exception throw in addBatchLookupTable8 #58745 (Raúl Marín).
• Fix: LIMIT BY and LIMIT in distributed query #59153 (Igor Nikonov).
• Fix translate() with FixedString input #59356 (Raúl Marín).
• Fix leftPad / rightPad function with FixedString input #59739 (Raúl Marín).
• Fix cosineDistance crash with Nullable #60150 (Raúl Marín).

NOT FOR CHANGELOG / INSIGNIFICANT

• Fix possible race in ManyAggregatedData dtor. #58624 (Nikolai Kochetov).
• Make ZooKeeper actually sequentialy consistent #59735 (Alexander Tokmakov).