Weekly update in TiDB

Last week, we landed 43 PRs in the TiDB repositories.

Added

• Add the sum_decimal method for AggFunc
• Support truncating and dropping partitioned tables
• Implement the reorganization of table partition when adding the index

Fixed

• Fix a bug that the bit and year column types are not supported when a partition table is created
• Fix a bug in the decimal modulo operation
• Refactor the code of building Insert
• Fix a panic caused by the outdated feedback
• Fix a panic that is upgraded from the old version TiDB
• Fix a bug that null values cannot be found using the unique index

Improved

• Add the partition function check when creating a partition table
• Provide preliminary support for the parallel DDL operation
• Use feedback timely
• Optimize DecodeRowKey
• Remove the types.Row interface
• Pass row pointer rather than row to avoid convertT2I

Weekly update in TiSpark

Last week, we landed 6 PRs in the TiSpark repositories.

Fixed

• Fix a decimal decoding bug

Weekly update in TiKV and PD

Last week, we landed 17 PRs in the TiKV and PD repositories.

Added

• Support encoding and decoding a Chunk
• Introduce a version check mechanism
• Add thread I/O metrics
• Add a document about the PD API

Fixed

• Fix a bug in AdjacentRegionScheduler

Improved

• Keep the number of operators generated by HotRegionScheduler within the schedule limit
• Stop searching in get_txn_commit_info
• Check the legality of the label
• Escape key in Error
• Refine the task log in raftstore

New contributor (Thanks!)

• tidb: laidahe