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Merge pull request #869 from CaitinChen/add-207-release-notes
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readme, releases: add 2.0.7 release notes
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lilin90 authored Sep 7, 2018
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1 change: 1 addition & 0 deletions README.md
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- [常见问题与解答(FAQ)](FAQ.md)
- [最佳实践](https://pingcap.com/blog-cn/tidb-best-practice/)
+ [版本发布历史](releases/rn.md)
- [2.0.7](releases/207.md)
- [2.1 RC1](releases/21rc1.md)
- [2.0.6](releases/206.md)
- [2.0.5](releases/205.md)
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36 changes: 36 additions & 0 deletions releases/207.md
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---
title: TiDB 2.0.7 release notes
category: Releases
---

# TiDB 2.0.7 Release Notes

2018 年 9 月 7 日,TiDB 发布 2.0.7 版。该版本在 2.0.6 版的基础上,对系统兼容性、稳定性做出了改进。

## TiDB

- New Feature
-`information_schema` 里添加 `PROCESSLIST`[#7286](https://github.com/pingcap/tidb/pull/7286)
- Improvements
- 收集更多语句执行细节,并输出在 `SLOW QUERY` 日志里 [#7364](https://github.com/pingcap/tidb/pull/7364)
- `SHOW CREATE TABLE` 不再输出分区信息 [#7388](https://github.com/pingcap/tidb/pull/7388)
- 通过设置 RC 隔离级别和低优先级优化 `ANALYZE` 语句执行效率 [#7500](https://github.com/pingcap/tidb/pull/7500)
- 加速 `ADD UNIQUE INDEX` [#7562](https://github.com/pingcap/tidb/pull/7562)
- 增加控制 DDL 并发度的选项 [#7563](https://github.com/pingcap/tidb/pull/7563)
- Bug Fixes
- 修复 `PRIMARY KEY` 为整数的表,无法使用 `USE INDEX(PRIMARY)` 的问题 [#7298](https://github.com/pingcap/tidb/pull/7298)
- 修复 `Merge Join``Index Join` 在 inner row 为 `NULL` 时输出多余结果的问题 [#7301](https://github.com/pingcap/tidb/pull/7301)
- 修复 chunk size 设置过小时,`Join` 输出多余结果的问题 [#7315](https://github.com/pingcap/tidb/pull/7315)
- 修复建表语句中包含 `range column` 语法导致 panic 的问题 [#7379](https://github.com/pingcap/tidb/pull/7379)
- 修复 `admin check table` 对时间类型的列误报的问题 [#7457](https://github.com/pingcap/tidb/pull/7457)
- 修复以默认值 `current_timestamp` 插入的数据无法用 `=` 条件查询到的问题 [#7467](https://github.com/pingcap/tidb/pull/7467)
- 修复以 `ComStmtSendLongData` 命令插入空字符串参数被误解析为 `NULL` 的问题 [#7508](https://github.com/pingcap/tidb/pull/7508)
- 修复特定场景下 `auto analyze` 不断重复执行的问题 [#7556](https://github.com/pingcap/tidb/pull/7556)
- 修复 parser 无法解析以换行符结尾的单行注释的问题 [#7635](https://github.com/pingcap/tidb/pull/7635)

## TiKV

- Improvement
- 空集群默认打开 `dynamic-level-bytes` 参数减少空间放大
- Bug Fix
- 在 Region merge 之后更新 Region 的 `approximate size` 和 keys
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TiDB 历史版本发布声明如下:

- [2.0.7](207.md)
- [2.1 RC1](releases/21rc1.md)
- [2.0.6](206.md)
- [2.0.5](205.md)
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