ClickHouse/docs/changelogs/v22.8.7.34-lts.md

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1	2022

2022 Changelog

ClickHouse release v22.8.7.34-lts (3c38e5e8ab) FIXME as compared to v22.8.6.71-lts (7bf38a43e3)

Improvement

• Backported in #42096: Replace back clickhouse su command with sudo -u in start in order to respect limits in /etc/security/limits.conf. #41847 (Eugene Konkov).

Bug Fix

• Backported in #42434: - Choose correct aggregation method for LowCardinality with BigInt. #42342 (Duc Canh Le).

Build/Testing/Packaging Improvement

• Backported in #42296: Update cctz to the latest master, update tzdb to 2020e. #42273 (Dom Del Nano).
• Backported in #42360: Update tzdata to 2022e to support the new timezone changes. Palestine transitions are now Saturdays at 02:00. Simplify three Ukraine zones into one. Jordan and Syria switch from +02/+03 with DST to year-round +03. (https://data.iana.org/time-zones/tzdb/NEWS). This closes #42252. #42327 (Alexey Milovidov).

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

• Backported in #42489: Removed skipping of mutations in unaffected partitions of MergeTree tables, because this feature never worked correctly and might cause resurrection of finished mutations. #40589 (Alexander Tokmakov).
• Backported in #42121: Fixed "Part ... intersects part ..." error that might happen in extremely rare cases if replica was restarted just after detaching some part as broken. #41741 (Alexander Tokmakov).
• • Prevent crash when passing wrong aggregation states to groupBitmap*. #41972 (Raúl Marín).
• • Fix read bytes/rows in X-ClickHouse-Summary with materialized views. #41973 (Raúl Marín).
• Backported in #42269: Fix reusing of files > 4GB from base backup. #42146 (Azat Khuzhin).
• Backported in #42300: Fix a bug with projections and the aggregate_functions_null_for_empty setting. This bug is very rare and appears only if you enable the aggregate_functions_null_for_empty setting in the server's config. This closes #41647. #42198 (Alexey Milovidov).
• Backported in #42387: ALTER UPDATE of attached part (with columns different from table schema) could create an invalid columns.txt metadata on disk. Reading from such part could fail with errors or return invalid data. Fixes #42161. #42319 (Nikolai Kochetov).
• Backported in #42499: Setting additional_table_filters were not applied to Distributed storage. Fixes #41692. #42322 (Nikolai Kochetov).
• Backported in #42571: Fix buffer overflow in the processing of Decimal data types. This closes #42451. #42465 (Alexey Milovidov).
• Backported in #42594: This closes #42453. #42573 (Alexey Milovidov).

NOT FOR CHANGELOG / INSIGNIFICANT

• Add a warning message to release.py script, require release type #41975 (Mikhail f. Shiryaev).
• Revert #27787 #42136 (Nikolai Kochetov).