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readme, releases: add 2.0.7 release notes
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title: TiDB 2.0.7 release notes | ||
category: Releases | ||
--- | ||
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# TiDB 2.0.7 Release Notes | ||
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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。 | ||
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## TiDB | ||
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- New Feature | ||
- 在 `information_schema` 里添加 `PROCESSLIST` 表 [#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` 和 `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) | ||
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## TiKV | ||
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- 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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