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move the enhancement of BR to the correct position
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songrijie committed Sep 13, 2024
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6 changes: 4 additions & 2 deletions releases/release-8.4.0.md
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Expand Up @@ -282,11 +282,9 @@ TiDB 版本:8.4.0
- 优化器估行的最小值为`1`,与其他数据库行为一致 [#47400](https://github.com/pingcap/tidb/issues/47400) @[terry1purcell](https://github.com/terry1purcell) **tw@Oreoxmt** <!--1929-->
- 为日志表 [`mysql.tidb_runaway_queries`](/mysql-schema/mysql-schema.md#runaway-queries-相关系统表) 增加写入控制,降低并发大量写入引发的开销 [#issue号](链接) @[HuSharp](https://github.com/HuSharp) <!--1908--> **tw@lilin90**
- 当内表上有 `Selection``Projection` 算子时默认支持 Index Join [#issue号](链接) @[winoros](https://github.com/winoros) **tw@qiancai** <!--1709-->
- 默认不允许使用 SQL 全量恢复数据到非空集群 [#55087](https://github.com/pingcap/tidb/issues/55087) @[BornChanger](https://github.com/BornChanger) **tw@Oreoxmt** <!--1711-->
- 减少部分场景的 DELETE 操作从 TiKV 获取的列信息数量,降低 DELETE 操作的资源开销。[#issue号](链接) [winoros](https://github.com/winoros) **tw@Oreoxmt** <!--1798-->
- 优化 Priority Queue 基于 Meta Cache V2 的运行效率 [#49972](https://github.com/pingcap/tidb/issues/49972) [Rustin170506](https://github.com/Rustin170506) <!--1935-->
- 自动统计信息收集根据部署规模和硬件规格决定执行和扫描的并发度 [#issue号](链接) @[hawkingrei](https://github.com/hawkingrei) **tw@Oreoxmt** <!--1739-->
- 优化同时设置 `split-table=false``split-region-on-table=false` 时,集群恢复的 region 分配策略 [#issue号](链接) @[Leavrth](https://github.com/Leavrth) **tw@qiancai** <!--1914-->

+ TiKV

Expand All @@ -298,6 +296,10 @@ TiDB 版本:8.4.0

+ Backup & Restore (BR)

- 集群恢复时同时设置 `split-table=false``split-region-on-table=false`,优化 region 的分配策略 [#issue号](链接) @[Leavrth](https://github.com/Leavrth)
**tw@qiancai** <!--1914-->
- 默认不允许使用 SQL 全量恢复数据到非空集群 [#55087](https://github.com/pingcap/tidb/issues/55087) @[BornChanger](https://github.com/BornChanger) **tw@Oreoxmt** <!--1711-->

+ TiCDC

+ TiDB Data Migration (DM)
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