ClickHouse/docs/changelogs/v23.6.3.87-stable.md

sidebar_position	sidebar_label
1	2023

2023 Changelog

ClickHouse release v23.6.3.87-stable (36911c17d0) FIXME as compared to v23.6.2.18-stable (89f39a7ccf)

Performance Improvement

• Backported in #52751: Fix incorrect projection analysis which invalidates primary keys. This issue only exists when query_plan_optimize_primary_key = 1, query_plan_optimize_projection = 1 . This fixes #48823 . This fixes #51173 . #52308 (Amos Bird).

Build/Testing/Packaging Improvement

• Backported in #52911: Add clickhouse-keeper-client symlink to the clickhouse-server package. #51882 (Mikhail f. Shiryaev).
• Backported in #53023: Packing inline cache into docker images sometimes causes strange special effects. Since we don't use it at all, it's good to go. #53008 (Mikhail f. Shiryaev).
• Backported in #53290: The compiler's profile data (-ftime-trace) is uploaded to ClickHouse Cloud., the second attempt after #53100. #53213 (Alexey Milovidov).
• Backported in #53465: Preserve environment parameters in clickhouse start command. Fixes #51962. #53418 (Mikhail f. Shiryaev).

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

• Fix for moving 'IN' conditions to PREWHERE #51610 (Alexander Gololobov).
• Fix binary arithmetic for Nullable(IPv4) #51642 (Yakov Olkhovskiy).
• Support IPv4 and IPv6 as dictionary attributes #51756 (Yakov Olkhovskiy).
• Check refcount in RemoveManyObjectStorageOperation::finalize instead of execute #51954 (vdimir).
• Fix ORDER BY tuple of WINDOW functions #52145 (Alexey Milovidov).
• Fix error in groupArrayMoving functions #52161 (Alexey Milovidov).
• Disable expression templates for time intervals #52335 (Alexander Tokmakov).
• Fix countSubstrings() hang with empty needle and a column haystack #52409 (Sergei Trifonov).
• Fixed inserting into Buffer engine #52440 (Vasily Nemkov).
• The implementation of AnyHash was non-conformant. #52448 (Alexey Milovidov).
• Fix abort in function transform #52513 (Alexey Milovidov).
• Fix possible error "Cannot drain connections: cancel first" #52585 (Kruglov Pavel).
• init and destroy ares channel on demand.. #52634 (Arthur Passos).
• Fix crash in function tuple with one sparse column argument #52659 (Anton Popov).
• clickhouse-keeper: fix implementation of server with poll() #52833 (Andy Fiddaman).
• Fix password leak in show create mysql table #52962 (Duc Canh Le).
• Not-ready Set #53162 (Nikolai Kochetov).
• Fix incorrect normal projection AST format #53347 (Amos Bird).
• Fix loading lazy database during system.table select query #53372 (SmitaRKulkarni).
• Fix: interpolate expression takes source column instead of same name aliased from select expression. #53572 (Yakov Olkhovskiy).
• Correctly handle totals and extremes with DelayedSource #53644 (Antonio Andelic).
• Fix: sorted distinct with sparse columns #53711 (Igor Nikonov).
• Fix fuzzer crash in parseDateTime() #53764 (Robert Schulze).

NOT FOR CHANGELOG / INSIGNIFICANT

• Fix: logical error in grace hash join #51737 (Igor Nikonov).
• Pin rust nightly (to make it stable) #51903 (Azat Khuzhin).
• Fix crash in comparison functions due to incorrect query analysis #52172 (Alexey Milovidov).
• Less replication errors #52382 (Alexander Tokmakov).
• Improve logging macros #52519 (Alexander Tokmakov).
• Fix deadlocks in StorageTableFunctionProxy #52626 (Alexander Tokmakov).
• Increase min protocol version for sparse serialization #52835 (Anton Popov).
• Docker improvements #52869 (Mikhail f. Shiryaev).
• Disable test_reverse_dns_query/test.py #53195 (Alexander Tokmakov).
• Disable test_host_regexp_multiple_ptr_records/test.py #53211 (Alexander Tokmakov).
• Get rid of describe_parameters for the best robot token #53833 (Mikhail f. Shiryaev).