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add v6.5.3 release notes #14168

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103 changes: 103 additions & 0 deletions releases/release-6.5.3.md
Original file line number Diff line number Diff line change
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---
title: TiDB 6.5.3 Release Notes
summary: 了解 TiDB 6.5.3 版本的兼容性变更、改进提升,以及错误修复。
---

# TiDB 6.5.3 Release Notes

发版日期:2023 年 x 月 x 日

TiDB 版本:6.5.3

试用链接:[快速体验](https://docs.pingcap.com/zh/tidb/v6.5/quick-start-with-tidb) | [生产部署](https://docs.pingcap.com/zh/tidb/v6.5/production-deployment-using-tiup) | [下载离线包](https://cn.pingcap.com/product-community/?version=v6.5.3#version-list)

## 兼容性变更

- note 1

## 改进提升

+ TiDB

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+ TiKV

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+ PD

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+ TiFlash

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+ Tools

+ Backup & Restore (BR)

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+ TiCDC

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+ TiDB Data Migration (DM)

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+ TiDB Lightning

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+ Dumpling

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## 错误修复

+ TiDB

- 修复一个 min, max 查询结果出错的问题 [#43805](https://github.com/pingcap/tidb/issues/43805) @[wshwsh12](https://github.com/wshwsh12)
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- 修复一个窗口函数计算下推到 tiflash 时执行计划构造错误的问题 [#43981](https://github.com/pingcap/tidb/issues/43981) @[gengliqi](https://github.com/gengliqi)
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- 修复一个使用 CTE 的查询 hang 住的问题 [#43758](https://github.com/pingcap/tidb/issues/43758) @[guo-shaoge](https://github.com/guo-shaoge)
- 修复一个使用 AES_DECRYPT 表达时,sql 报错 runtime error: index out of range 的问题 [#43086](https://github.com/pingcap/tidb/issues/43086) @[lcwangchao](https://github.com/lcwangchao)

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+ TiKV

- note 1
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+ PD

- note 1

+ TiFlash

- 修复一个分区表查询报错的问题 [#7519](https://github.com/pingcap/tiflash/issues/7519) @[Lloyd-Pottiger](https://github.com/Lloyd-Pottiger)
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- 修复在表字段同时存在 TIMESTAMP 或者 TIME 类型和 GENERATED 类型情况下,查询 TiFlash 可能会报错的问题 [#7468](https://github.com/pingcap/tiflash/issues/7468) @[Lloyd-Pottiger](https://github.com/Lloyd-Pottiger)
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- 修复大的更新事务可能会导致 TiFlash 反复报错重启的问题 [#7316](https://github.com/pingcap/tiflash/issues/7316) @[JaySon-Huang](https://github.com/JaySon-Huang)
- 修复一个 insert select 语句从 tiflash 读取数据时,sql 报错 Truncate error cast decimal as decimal 的问题 [#7348](https://github.com/pingcap/tiflash/issues/7348) @[windtalker](https://github.com/windtalker)
- 修复查询在 Join build 侧数据非常大,且包含许多小型字符串类型列时,可能会使用比实际需要更大的内存的问题。 [#7416](https://github.com/pingcap/tiflash/issues/7416) @[yibin87](https://github.com/yibin87)

+ Tools

+ Backup & Restore (BR)

- note 1
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+ TiCDC
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- note 1

+ TiDB Data Migration (DM)

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+ TiDB Lightning

- note 1
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+ Dumpling

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