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releases: add tidb 5.0.1 release notes #6061
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/label needs-cherry-pick-5.0 |
/assign @overvenus @nolouch |
## 新功能 | ||
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## 改进提升 | ||
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- TiKV
- 使用
zstd
压缩 Region Snapshot #10005
- 使用
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## 改进提升 | ||
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## Bug 修复 |
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## Bug 修复 | |
## Bug 修复 | |
+ TiKV | |
- 修复了 coprocessor 的 IN 表达式未正确处理 unsigned/signed int 类型数据的问题 [#10018](https://github.com/tikv/tikv/pull/10018) | |
- 修复了在 batch ingest SST 之后产生大量空 Region 的问题 [#10015](https://github.com/tikv/tikv/pull/10015) | |
- 修复了 `cast_string_as_time` 输入非法的 UTF-8 值之和导致 panic 的问题 [#9995](https://github.com/tikv/tikv/pull/9995) | |
- 修复了“文件目录”文件损坏之后 TiKV 无法启动的问题 [#9992](https://github.com/tikv/tikv/pull/9992) | |
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## 改进提升 | ||
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## Bug 修复 |
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## Bug 修复 | |
## Bug 修复 | |
+ TiDB | |
- 修复投影消除在投影结果为空时执行结果可能错误的问题 [#24093](https://github.com/pingcap/tidb/pull/24093) | |
- 修复某些情况下列允许为 NULL 时执行结果可能错误的问题 [#24063](https://github.com/pingcap/tidb/pull/24063) | |
- 当有虚拟列参与运算时不允许生成 MPP 计划 [#24058](https://github.com/pingcap/tidb/pull/24058) | |
- 修复 Plan Cache 中对 PointGet 和 TableDual 错误的重复使用 [#24043](https://github.com/pingcap/tidb/pull/24043) | |
- IndexMerge 算子需要保留聚簇索引的输出 [#24042](https://github.com/pingcap/tidb/pull/24042) | |
- 修复 BIT 类型相关的错误的类型推导 [#24027](https://github.com/pingcap/tidb/pull/24027) | |
- 修复某些优化器 hint 在 PointGet 算子存在时无法生效的问题 [#23685](https://github.com/pingcap/tidb/pull/23685) | |
- 修复某些情况下 DDL job 在将状态设置外 rolling back 时可能的参数解析失败的问题 [#24080](https://github.com/pingcap/tidb/pull/24080) | |
- 修复二进制字面值常量的索引范围构造错误的问题 [#24041](https://github.com/pingcap/tidb/pull/24041) | |
- 修复某些情况下 IN 语句执行结果可能错误的问题 [#24023](https://github.com/pingcap/tidb/pull/24023) | |
- 修复某些字符串函数返回结果错误的问题 [#23879](https://github.com/pingcap/tidb/pull/23879) | |
- 执行 REPLACE 语句需要用户同时拥有 INSERT 和 DELETE 的权限 [#23939](https://github.com/pingcap/tidb/pull/23939) | |
- 修复点差时的性能回退 [#24070](https://github.com/pingcap/tidb/pull/24070) |
/unassign @overvenus |
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- 使用 `zstd` 压缩 Region Snapshot [#10005](https://github.com/tikv/tikv/pull/10005) | ||
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## Bug 修复 |
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-
TiFLash
- 修复存储引擎无法删除某些范围数据的问题
- 修复
time
转换为int
时产生错误结果的问题 - 修复
receiver
可能无法在 10 秒内找到对应任务的问题 - 修复
cancelMPPQuery
中可能存在无效迭代器的问题 - 修复
bitwise
操作和 TiDB 行为不一致的问题 - 修复当使用
prefix key
时出现范围重叠报错的问题 - 修复字符串转换为
int
时产生错误结果的问题 - 修复连续快速写入可能导致 TiFlash OOM 的问题
- 修复列名重复会引发报错的问题
- 修复 MPP 执行计划无法被解析的问题
- 修复 Table GC 时会引发空指针的问题
- 修复向已被删除的表写数据时 TiFlash 进程崩溃的问题
- 修复当使用 BR Restore 时 TiFlash 进程崩溃的问题
- 使用 `zstd` 压缩 Region Snapshot [#10005](https://github.com/tikv/tikv/pull/10005) | ||
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## Bug 修复 | ||
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+ Tools | |
- Lightning | |
* 修复导入过程中进度不准确的问题. [#1005](https://github.com/pingcap/br/pull/1005) | |
- BR | |
* 修复备份时设置 ratelimit 不生效的问题. [#1026](https://github.com/pingcap/br/pull/1026) | |
* 修复备份时不能容忍少部分 TiKV 节点挂掉的问题. [#1019](https://github.com/pingcap/br/pull/1019) | |
- TiCDC | |
* 修复 unified sorter 中的并发问题,以及改进日志. [#1678](https://github.com/pingcap/ticdc/pull/1678) | |
* 修复同步到 minio 时,重复创建目录会导致同步中断的问题. [#1672] | |
* 默认打开 session 变量 `explicit_defaults_for_timestamp`,使得 mysql 和上游 TiDB 行为一致 . [#1659](https://github.com/pingcap/ticdc/pull/1659) | |
* 修复错误的处理 io.EOF 问题,导致同步中断的问题. [#1648](https://github.com/pingcap/ticdc/pull/1648) | |
* 修复 TiKV CDC endpoint CPU 统计信息. [#1645](https://github.com/pingcap/ticdc/pull/1645) | |
* 增加 defaultBufferChanSize 来避免某些情况下同步阻塞的问题 [#1632](https://github.com/pingcap/ticdc/pull/1632) |
## 新功能 | ||
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## 改进提升 | ||
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+Tools | |
- BR | |
* 删除 summary 日志中一些容易误解的信息. [#1009](https://github.com/pingcap/br/pull/1009) |
+ TiKV | ||
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- 使用 `zstd` 压缩 Region Snapshot [#10005](https://github.com/tikv/tikv/pull/10005) | ||
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+ PD | |
- 改善 Region 分数公式使其更适用异构集群问题 [#1009](https://github.com/pingcap/br/pull/1009) | |
- 避免在添加 `scatter range` 后的非预期统计行为 [#3602](https://github.com/pingcap/pd/pull/3602) |
/lgtm |
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Co-authored-by: Grace Cai <[email protected]>
Co-authored-by: Grace Cai <[email protected]>
/lgtm |
@qiancai: In response to this:
Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the ti-community-infra/tichi repository. |
/unhold |
/merge |
This pull request has been accepted and is ready to merge. Commit hash: e9c31b4
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Signed-off-by: ti-srebot <[email protected]>
cherry pick to release-5.0 in PR #6130 |
What is changed, added or deleted? (Required)
Add tidb 5.0.1 release notes
Which TiDB version(s) do your changes apply to? (Required)
What is the related PR or file link(s)?
Do your changes match any of the following descriptions?