2018-01-15-tidb-weekly.md

title	date	summary	tags
Weekly update (January 08 ~ January 14, 2018)	2018-01-15	Last week, we landed 43 PRs in the TiDB repositories and 25 PRs in the TiKV and PD repositories.	TiDB TiKV PD

Weekly update in TiDB

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

Added

• Support the ODBC syntax of time/date/timestamp literal
• Add MaxProcs and make the runtime.GOMAXPROCS parameter configurable

Fixed

• Fix a bug about index join
• Close HashJoin goroutines as soon as possible to avoid unexpected errors
• fetchShowTableStatus should append an integer to the third column instead of a string
• Correct the behavior when RunWorker is false
• Refine the typeInfer of group_concat

Improved

• Avoid the Children type assertion
• Merge IntColumnRange with NewRange
• Upgrade the username length limit to 32 to be compatible with MySQL 5.7
• Garbage collects useless stats info
• InsertExec eliminates unnecessary CastValue operations
• Speed up row count estimation
• Support encoding a Chunk row
• Use dep instead of glide
• Optimize the insert ignore statement
• Support Chunk in:
  • HashJoinExec
  • ExecuteExec

Weekly update in TiKV and PD

Last week, we landed 25 PRs in the TiKV and PD repositories.

Added

• Add the node case
• Support Region split
• Support query regions by read/write flow

Fixed

• Change the version
• Fix a RocksDB task name error
• Cancel call when refreshing client

Improved

• Use dep instead of glide
• Optimize write type parsing for MVCC properties collector
• Update README and upgrade Dockerfile golang:1.9.2
• Specify gRPC event engine
• Add the debug log
• Fix some ineffassign to improve the GoReport Result
• Rename AggregationExecutor to HashAggExecutor
• Improve the GoReport Result
• Dump the ConfChange type Raft log entry
• Make meta key return array

New contributor (Thanks!)

• PD: maiyang