2016-12-19-tidb-weekly.md

title	date	summary	tags
Weekly update (December 12 ~ December 18, 2016)	2016-12-19	Last week, we landed 32 PRs in the TiDB repositories and 11 PRs in the TiKV repositories.	TiDB TiKV

Weekly update in TiDB

Last week, we landed 32 PRs in the TiDB repositories.

Added

• Add the FlagIgnoreTruncate/FlagTruncateAsWarning flag to control the behavior of truncated errors.

• Add the prompt text flag.

• Add the rawkv metrics to profile the rawkv API performance.

• Add a comparable varint encoding/decoding method to make encoded data smaller.

• Support the timediff built-in function.

• Support the following built-in functions: ln(), log(), log2(), log10().

Fixed

• A bug that ignores primary key’s unsigned attribute.

• A bug that ignores error in the distsql layer.

• Allow default value to be Null when the column has the auto_increament attribute to be compatible with MySQL 5.6.

• A bug in the insert statement that ignores error.

• Fix bugs in the cost-based optimization framework: #2243

Improved

• Refactor the time type related code: #2185, #2190, #2206, #2233, #2261

• Remove the util/bytes package to clean up the code.

• Refactor the code to remove the evaluator.Eval() method: #2222,

• Improve test coverage for the util/segmentmap package.

• Recover from panics caused by malformated mysql packet to make tidb-server more robust.

New contributor

• Bai Yang

Weekly update in TiKV

Last week, we landed 11 PRs in the TiKV repositories.

Added

• Add a configuration to disable data sync to speed up loading data.

• Filter the pending peers for Placement Driver (PD) scheduler.

• Add pd-ctl to operate PD more easily.

Fixed

• Update the advertise peer urls from etcd to fix #435.

Improved

• Read and verify snapshot file in one step.

• Use a smaller interval to make Raft tick more accurate.

• Clean up the tombstone store to fix #401.

• Use delete_file_in_range when clean up the tombstone regions.