Weekly update in TiDB

Last week, we landed 18 PRs in the TiDB repositories.

Added

• Support the binary fetch command
• Add a variable to disable auto-retry of the transaction block

Fixed

• Allow comments to end up with multiple asterisks as MySQL does

Improved

• Allow using IndexJoin in more scenarios
• Improve the performance of the insert ignore on duplicate key update statement
• Optimize the accuracy of index row count estimation

Weekly update in TiSpark

Last week, we landed 5 PRs in the TiSpark repositories.

Added

• Add deployment tools and information in pom
• Add the code coverage report tool

Weekly update in TiKV and PD

Last week, we landed 19 PRs in the TiKV and PD repositories.

Added

• Count each index prefix when executing the Analyze operation
• Allow configuring the timespan of log rotation
• Provide more RocksDB metrics

Fixed

• Fix TiKV panic when multiplying specific decimals

Improved

• Change the maximum size of the bucket for snapshot from 2G to 1T
• Improve TiKV metrics performance PR1 PR2
• Preserve logs instead of dropping logs when logs overflow

New contributors (Thanks!)

TiDB:

• mz1999
• liuzhengyang