Weekly update in TiDB

Last week, we landed 22 PRs in the TiDB repository.

Added

• Add a variable to control whether to check MB4 characters in the UTF-8 charset

Improved

• Log failure reasons for AutoAnalyze
• Log the reason why AutoAnalyze is triggered
• Improve the message compatibility with MySQL when setting up connections with the server
• Improve the syntax error code and message compatibility with MySQL

Fixed

• Use a separate backoffer structure for asynchronous commits
• Prohibit altering tables from the binary charset to utf8mb4
• Fix wrong results of queries that contain any/all
• Resolve the charset of table columns correctly

Weekly update in TiSpark

Last week, we landed 1 PR in the TiSpark repository.

Fixed

• Fix case sensitive configurations

Weekly update in TiKV and PD

Last week, we landed 20 PRs in the TiKV and PD repositories.

Improved

• Update etcd in PD
• Make the hot Region scheduler configurable

Fixed

• Fix the event listener issue by checking the CompactionJobInfos status
• Fix the is_point usage issue in IndexScanExecutor
• Fix the GC state of invalid logs

New contributors (Thanks!)

tidb:

• hueypark

tikv:

• fredchenbj

parser:

• arnkore

docs-cn:

• tender-boluo