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releases: add release notes for v7.5.0 #15276
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add release notes for v7.5.0
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--- | ||
title: TiDB 7.5.0 Release Notes | ||
summary: 了解 TiDB 7.5.0 版本的新功能、兼容性变更、改进提升,以及错误修复。 | ||
--- | ||
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# TiDB 7.5.0 Release Notes | ||
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发版日期:2023 年 x 月 x 日 | ||
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TiDB 版本:7.5.0 | ||
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试用链接:[快速体验](https://docs.pingcap.com/zh/tidb/v7.5/quick-start-with-tidb) | [生产部署](https://docs.pingcap.com/zh/tidb/v7.5/production-deployment-using-tiup) | [下载离线包](https://cn.pingcap.com/product-community/?version=v7.5.0#version-list) | ||
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TiDB 7.5.0 为长期支持版本 (Long-Term Support Release, LTS)。 | ||
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相比于前一个 LTS(即 7.1.0 版本),7.5.0 版本包含 [7.2.0-DMR](/releases/release-7.2.0.md)、[7.3.0-DMR](/releases/release-7.3.0.md) 和 [7.4.0-DMR](/releases/release-7.4.0.md) 中已发布的新功能、提升改进和错误修复,并引入了以下关键特性: | ||
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## 功能详情 | ||
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### 可扩展性 | ||
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* 功能标题 [#issue号](链接) @[贡献者 GitHub ID](链接) | ||
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功能描述(需要包含这个功能是什么、在什么场景下对用户有什么价值、怎么用) | ||
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更多信息,请参考[用户文档](链接)。 | ||
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### 性能 | ||
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* 功能标题 [#issue号](链接) @[贡献者 GitHub ID](链接) | ||
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功能描述(需要包含这个功能是什么、在什么场景下对用户有什么价值、怎么用) | ||
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更多信息,请参考[用户文档](链接)。 | ||
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### 稳定性 | ||
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* 功能标题 [#issue号](链接) @[贡献者 GitHub ID](链接) | ||
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功能描述(需要包含这个功能是什么、在什么场景下对用户有什么价值、怎么用) | ||
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更多信息,请参考[用户文档](链接)。 | ||
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### 高可用 | ||
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* 功能标题 [#issue号](链接) @[贡献者 GitHub ID](链接) | ||
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功能描述(需要包含这个功能是什么、在什么场景下对用户有什么价值、怎么用) | ||
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更多信息,请参考[用户文档](链接)。 | ||
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### SQL 功能 | ||
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* 功能标题 [#issue号](链接) @[贡献者 GitHub ID](链接) | ||
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功能描述(需要包含这个功能是什么、在什么场景下对用户有什么价值、怎么用) | ||
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更多信息,请参考[用户文档](链接)。 | ||
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### 数据库管理 | ||
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* 功能标题 [#issue号](链接) @[贡献者 GitHub ID](链接) | ||
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功能描述(需要包含这个功能是什么、在什么场景下对用户有什么价值、怎么用) | ||
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更多信息,请参考[用户文档](链接)。 | ||
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* BR 支持备份和恢复表统计信息 [#issue号](链接) @[Leavrth](https://github.com/Leavrth) **tw@hfxsd** <!--1437--> | ||
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BR 备份工具 从 v7.5.0 开始支持备份和恢复数据库统计信息,包括列、索引和表级别的统计信息。通过支持该功能,从备份中恢复的 TiDB 数据库不再需要手动运行统计信息收集任务或等待自动收集任务的完成,简化了数据库维护并提升高了恢复库的查询性能。可以通过 [--新参数](待添加链接) 启用该功能。 | ||
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更多信息,请参考[用户文档](链接)。 | ||
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### 可观测性 | ||
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* 功能标题 [#issue号](链接) @[贡献者 GitHub ID](链接) | ||
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功能描述(需要包含这个功能是什么、在什么场景下对用户有什么价值、怎么用) | ||
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更多信息,请参考[用户文档](链接)。 | ||
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### 安全 | ||
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* 功能标题 [#issue号](链接) @[贡献者 GitHub ID](链接) | ||
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功能描述(需要包含这个功能是什么、在什么场景下对用户有什么价值、怎么用) | ||
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更多信息,请参考[用户文档](链接)。 | ||
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### 数据迁移 | ||
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* 功能标题 [#issue号](链接) @[贡献者 GitHub ID](链接) | ||
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功能描述(需要包含这个功能是什么、在什么场景下对用户有什么价值、怎么用) | ||
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更多信息,请参考[用户文档](链接)。 | ||
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## 兼容性变更 | ||
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> **注意:** | ||
> | ||
> 以下为从 v7.4.0 升级至当前版本 (v7.5.0) 所需兼容性变更信息。如果从 v7.3.0 或之前版本升级到当前版本,可能也需要考虑和查看中间版本 Release Notes 中提到的兼容性变更信息。 | ||
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### 行为变更 | ||
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* 行为变更 1 | ||
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* 行为变更 2 | ||
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### MySQL 兼容性 | ||
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* 兼容性 1 | ||
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* 兼容性 2 | ||
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### 系统变量 | ||
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| 变量名 | 修改类型(包括新增/修改/删除) | 描述 | | ||
|--------|------------------------------|------| | ||
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### 配置文件参数 | ||
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| 配置文件 | 配置项 | 修改类型 | 描述 | | ||
| -------- | -------- | -------- | -------- | | ||
| | | | | | ||
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### 其他 | ||
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## 离线包变更 | ||
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## 废弃功能 | ||
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* 统计信息的[快速分析](https://docs.pingcap.com/zh/tidb/v7.3/system-variables#tidb_enable_fast_analyze)(实验特性)在 v7.5.0 中废弃。 | ||
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* 统计信息的[增量收集](https://docs.pingcap.com/zh/tidb/v7.3/statistics#增量收集)(实验特性)在 v7.5.0 中废弃。 | ||
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* [TiDB Binlog](/tidb-binlog/tidb-binlog-overview.md) 在 v7.5.0 废弃数据同步功能,强烈建议使用 [TiCDC](/ticdc/ticdc-overview.md) 来实现高效稳定的数据同步。尽管 TiDB Binlog 在 v7.5.0 仍支持 Point-in-Time Recovery (PITR) 场景,但是该组件在未来 LTS 版本中将被完全废弃,推荐使用 [PITR](/br/br-pitr-guide.md) 替代。**tw@Oreoxmt** <!--1575--> | ||
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* 废弃功能 4 | ||
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## 改进提升 | ||
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+ TiDB | ||
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- note [#issue](链接) @[贡献者 GitHub ID](链接) | ||
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- note [#issue](链接) @[贡献者 GitHub ID](链接) | ||
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+ TiKV | ||
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- note [#issue](链接) @[贡献者 GitHub ID](链接) | ||
- note [#issue](链接) @[贡献者 GitHub ID](链接) | ||
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+ PD | ||
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- note [#issue](链接) @[贡献者 GitHub ID](链接) | ||
- note [#issue](链接) @[贡献者 GitHub ID](链接) | ||
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+ TiFlash | ||
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- note [#issue](链接) @[贡献者 GitHub ID](链接) | ||
- note [#issue](链接) @[贡献者 GitHub ID](链接) | ||
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+ Tools | ||
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+ Backup & Restore (BR) | ||
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- note [#issue](链接) @[贡献者 GitHub ID](链接) | ||
- note [#issue](链接) @[贡献者 GitHub ID](链接) | ||
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+ TiCDC | ||
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- note [#issue](链接) @[贡献者 GitHub ID](链接) | ||
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- note [#issue](链接) @[贡献者 GitHub ID](链接) | ||
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+ TiDB Data Migration (DM) | ||
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- note [#issue](链接) @[贡献者 GitHub ID](链接) | ||
- note [#issue](链接) @[贡献者 GitHub ID](链接) | ||
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+ TiDB Lightning | ||
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- note [#issue](链接) @[贡献者 GitHub ID](链接) | ||
- note [#issue](链接) @[贡献者 GitHub ID](链接) | ||
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+ TiUP | ||
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- note [#issue](链接) @[贡献者 GitHub ID](链接) | ||
- note [#issue](链接) @[贡献者 GitHub ID](链接) | ||
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## 错误修复 | ||
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+ TiDB | ||
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- note [#issue](链接) @[贡献者 GitHub ID](链接) | ||
- note [#issue](链接) @[贡献者 GitHub ID](链接) | ||
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+ TiKV | ||
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- note [#issue](链接) @[贡献者 GitHub ID](链接) | ||
- note [#issue](链接) @[贡献者 GitHub ID](链接) | ||
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+ PD | ||
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- note [#issue](链接) @[贡献者 GitHub ID](链接) | ||
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- note [#issue](链接) @[贡献者 GitHub ID](链接) | ||
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+ TiFlash | ||
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- note [#issue](链接) @[贡献者 GitHub ID](链接) | ||
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- note [#issue](链接) @[贡献者 GitHub ID](链接) | ||
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+ Tools | ||
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+ Backup & Restore (BR) | ||
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- note [#issue](链接) @[贡献者 GitHub ID](链接) | ||
- note [#issue](链接) @[贡献者 GitHub ID](链接) | ||
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+ TiCDC | ||
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- note [#issue](链接) @[贡献者 GitHub ID](链接) | ||
- note [#issue](链接) @[贡献者 GitHub ID](链接) | ||
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+ TiDB Data Migration (DM) | ||
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- note [#issue](链接) @[贡献者 GitHub ID](链接) | ||
- note [#issue](链接) @[贡献者 GitHub ID](链接) | ||
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+ TiDB Lightning | ||
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- note [#issue](链接) @[贡献者 GitHub ID](链接) | ||
- note [#issue](链接) @[贡献者 GitHub ID](链接) | ||
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+ TiUP | ||
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- note [#issue](链接) @[贡献者 GitHub ID](链接) | ||
- note [#issue](链接) @[贡献者 GitHub ID](链接) | ||
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## 性能测试 | ||
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如需了解 TiDB v7.5.0 的性能表现,你可以参考 TiDB Dedicated 集群的 [TPC-C 性能测试报告](https://docs.pingcap.com/tidbcloud/v7.5.0-performance-benchmarking-with-tpcc)和 [Sysbench 性能测试报告](https://docs.pingcap.com/tidbcloud/v7.5.0-performance-benchmarking-with-sysbench)(英文版)。 | ||
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## 贡献者 | ||
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感谢来自 TiDB 社区的贡献者们: | ||
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- [贡献者 GitHub ID]() |
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