Weekly update in TiDB

Last week, we landed 38 PRs in the TiDB repository.

Added

• Add support for Views in Infoschema
• Add support for Drop View
• Support the Window function in the planner
• Add support for the default function
• Implement the parallel partition phase for Radix Hash Join

Improved

• Support the show create database if not exists syntax
• Forbid committing the transaction if StmtCommit fails
• Report an error when updating the generated column inside a transaction
• Improve the compatibility when using an empty database
• Run FLUSH PRIVILEGES synchronously on GRANT
• Support show columns from for Views
• Refine the code about DDL job canceling or rollback
• Check the user privilege on SET GLOBAL
• Add the post-process stage after physical optimization
• Propagate the constraint for > and monotonous increasing functions

Fixed

• Handle the empty input and improve the compatibility for format
• Fix the panic when writing a table with a column in the write only state
• Fix the insert failure when dropping a column
• Fix the hang issue of canceling Add Index

Weekly update in TiSpark

Last week, we landed 2 PRs in the TiSpark repository.

Improved

• Add retry for getRegion requests when regionId returns 0

Fixed

• Allow checking the TiSpark version when a database is not selected

Weekly update in TiKV and PD

Last week, we landed 10 PRs in the TiKV and PD repositories.

Added

• Add the add_duration_and_duration built-in function

Improved

• Upgrade rust-rocksdb to upgrade RocksDB to Titan smoothly
• Rearrange loggers
• Retry validating the endpoints when creating a RPC client

New contributors (Thanks!)

tidb:

• Westicles1980
• acmerfight

parser:

• 924060929
• buzzers
• lnhote
• shinytang6

docs-cn:

• zzh1985

docs:

• b41sh