TiDB 1.0 Release Notes

On October 16, 2017, TiDB 1.0 is now released! This release is focused on MySQL compatibility, SQL optimization, stability, and performance.

TiDB

• The SQL query optimizer:
  • Adjust the cost model
  • Analyze pushdown
  • Function signature pushdown
• Optimize the internal data format to reduce the interim data size
• Enhance the MySQL compatibility
• Support the NO_SQL_CACHE syntax and limit the cache usage in the storage engine
• Refactor the Hash Aggregator operator to reduce the memory usage
• Support the Stream Aggregator operator

PD

• Support read flow based balancing
• Support setting the Store weight and weight based balancing

TiKV

• Coprocessor now supports more pushdown functions
• Support pushing down the sampling operation
• Support manually triggering data compact to collect space quickly
• Improve the performance and stability
• Add a Debug API for debugging
• TiSpark Beta Release:
• Support configuration framework
• Support ThriftSever/JDBC and Spark SQL

Acknowledgement

Special thanks to the following enterprises and teams

• Archon
• Mobike
• Samsung Electronics
• SpeedyCloud
• Tencent Cloud
• UCloud

Thanks to the open source software and services from the following organizations and individuals

• Asta Xie
• CNCF
• CoreOS
• Databricks
• Docker
• Github
• Grafana
• gRPC
• Jepsen
• Kubernetes
• Namazu
• Prometheus
• RedHat
• RocksDB Team
• Rust Team

Thanks to the individual contributors

• 8cbx
• Akihiro Suda
• aliyx
• alston111111
• andelf
• Andy Librian
• Arthur Yang
• astaxie
• Bai, Yang
• bailaohe
• Bin Liu
• Blame cosmos
• Breezewish
• Carlos Ferreira
• Ce Gao
• Changjian Zhang
• Cheng Lian
• Cholerae Hu
• Chu Chao
• coldwater
• Cole R Lawrence
• cuiqiu
• cuiyuan
• Cwen
• Dagang
• David Chen
• David Ding
• dawxy
• dcadevil
• Deshi Xiao
• Di Tang
• disksing
• dongxu
• dreamquster
• Drogon
• Du Chuan
• Dylan Wen
• eBoyy
• Eric Romano
• Ewan Chou
• Fiisio
• follitude
• Fred Wang
• fud
• fudali
• gaoyangxiaozhu
• Gogs
• goroutine
• Gregory Ian
• Guanqun Lu
• Guilherme Hübner Franco
• Haibin Xie
• Han Fei
• hawkingrei
• Hiroaki Nakamura
• hiwjd
• Hongyuan Wang
• Hu Ming
• Hu Ziming
• Huachao Huang
• HuaiyuXu
• Huxley Hu
• iamxy
• Ian
• insion
• iroi44
• Ivan.Yang
• Jack Yu
• jacky liu
• Jan Mercl
• Jason W
• Jay
• Jay Lee
• Jianfei Wang
• Jiaxing Liang
• Jie Zhou
• jinhelin
• Jonathan Boulle
• Karl Ostendorf
• knarfeh
• Kuiba
• leixuechun
• li
• Li Shihai
• Liao Qiang
• Light
• lijian
• Lilian Lee
• Liqueur Librazy
• Liu Cong
• Liu Shaohui
• liubo0127
• liyanan
• lkk2003rty
• Louis
• louishust
• luckcolors
• Lynn
• Mae Huang
• maiyang
• maxwell
• mengshangqi
• Michael Belenchenko
• mo2zie
• morefreeze
• MQ
• mxlxm
• Neil Shen
• netroby
• ngaut
• Nicole Nie
• nolouch
• onlymellb
• overvenus
• PaladinTyrion
• paulg
• Priya Seth
• qgxiaozhan
• qhsong
• Qiannan
• qiukeren
• qiuyesuifeng
• queenypingcap
• qupeng
• Rain Li
• ranxiaolong
• Ray
• Rick Yu
• shady
• ShawnLi
• Shen Li
• Sheng Tang
• Shirly
• Shuai Li
• ShuNing
• ShuYu Wang
• siddontang
• silenceper
• Simon J Mudd
• Simon Xia
• skimmilk6877
• sllt
• soup
• Sphinx
• Steffen
• sumBug
• sunhao2017
• Tao Meng
• Tao Zhou
• tennix
• tiancaiamao
• TianGuangyu
• Tristan Su
• ueizhou
• UncP
• Unknwon
• v01dstar
• Van
• WangXiangUSTC
• wangyanjun
• wangyisong1996
• weekface
• wegel
• Wei Fu
• Wenbin Xiao
• Wenting Li
• Wenxuan Shi
• winkyao
• woodpenker
• wuxuelian
• Xiang Li
• xiaojian cai
• Xuanjia Yang
• Xuanwo
• XuHuaiyu
• Yang Zhexuan
• Yann Autissier
• Yanzhe Chen
• Yiding Cui
• Yim
• youyouhu
• Yu Jun
• Yuwen Shen
• Zejun Li
• Zhang Yuning
• zhangjinpeng1987
• ZHAO Yijun
• Zhe-xuan Yang
• ZhengQian
• ZhengQianFang
• zhengwanbo
• ZhiFeng Hu
• Zhiyuan Zheng
• Zhou Tao
• Zhoubirdblue
• zhouningnan
• Ziyi Yan
• zs634134578
• zxylvlp
• zyguan
• zz-jason