ClickHouse/docs/changelogs/v21.6.2.7-prestable.md

sidebar_position	sidebar_label
1	2022

2022 Changelog

ClickHouse release v21.6.2.7-prestable FIXME as compared to v21.6.1.6891-prestable

Bug Fix

• Backported in #24567: Use old modulo function version when used in partition key. Closes #23508. #24157 (Kseniia Sumarokova).
• Backported in #24367: Set max_threads = 1 to fix mutation fail of StorageMemory. Closes #24274. #24275 (flynn).
• Backported in #24383: Allow empty HTTP headers. Fixes #23901. #24285 (Ivan).
• Backported in #24365: Fixed a bug in moving Materialized View from Ordinary to Atomic database (RENAME TABLE query). Now inner table is moved to new database together with Materialized View. Fixes #23926. #24309 (Alexander Tokmakov).
• Backported in #24510: Fix drop partition with intersect fake parts. In rare cases there might be parts with mutation version greater than current block number. #24321 (Amos Bird).
• Backported in #24542: Fix incorrect monotonicity of toWeek function. This fixes #24422 . This bug was introduced in https://github.com/ClickHouse/ClickHouse/pull/5212 , and was exposed later by smarter partition pruner. #24446 (Amos Bird).
• Backported in #24556: Fixed the behavior when query SYSTEM RESTART REPLICA or SYSTEM SYNC REPLICA is being processed infinitely. This was detected on server with extremely little amount of RAM. #24457 (Nikita Mikhaylov).
• Backported in #24597: Fix usage of tuples in CREATE .. AS SELECT queries. #24464 (Anton Popov).
• Backported in #24600: Enable reading of subcolumns for distributed tables. #24472 (Anton Popov).

NOT FOR CHANGELOG / INSIGNIFICANT

• Use memmove in PODArray::insert to handle memory overlapping. #24271 (Fu Zhe).
• Fix cli argument in clickhouse-server.init #24449 (Vladimir C).
• Fix several cases in cast operator #24471 (Anton Popov).