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* add release notes template Signed-off-by: Ran <huangran.alex@gmail.com> * add chinese Signed-off-by: Ran <huangran.alex@gmail.com> * Update releases/release-6.1.6.md * add release-note related with sql-infra Signed-off-by: YangKeao <yangkeao@chunibyo.icu> * Update releases/release-6.1.6.md Co-authored-by: dongmen <20351731+asddongmen@users.noreply.github.com> * Update releases/release-6.1.6.md Co-authored-by: Yiding Cui <winoros@gmail.com> * Update releases/release-6.1.6.md Co-authored-by: Yiding Cui <winoros@gmail.com> * Update releases/release-6.1.6.md Co-authored-by: ShuNing <nolouch@gmail.com> * Update releases/release-6.1.6.md Co-authored-by: cfzjywxk <cfzjywxk@gmail.com> * Update releases/release-6.1.6.md Co-authored-by: cfzjywxk <cfzjywxk@gmail.com> * get dup again Signed-off-by: Ran <huangran.alex@gmail.com> * update PD and TiFlash * Apply suggestions from code review * Update releases/release-6.1.6.md * Apply suggestions from code review * Update releases/release-6.1.6.md Co-authored-by: Ran <huangran@pingcap.com> * Apply suggestions from code review Co-authored-by: Aolin <aolinz@outlook.com> * Apply suggestions from code review * Update releases/release-6.1.6.md * Apply suggestions from code review Co-authored-by: xixirangrang <hfxsd@hotmail.com> * clean up; update related files Signed-off-by: Ran <huangran.alex@gmail.com> * add contributor Signed-off-by: Ran <huangran.alex@gmail.com> --------- Signed-off-by: Ran <huangran.alex@gmail.com> Signed-off-by: YangKeao <yangkeao@chunibyo.icu> Co-authored-by: Ran <huangran.alex@gmail.com> Co-authored-by: ruoxi <zanmato1984@gmail.com> Co-authored-by: YangKeao <yangkeao@chunibyo.icu> Co-authored-by: Ran <huangran@pingcap.com> Co-authored-by: dongmen <20351731+asddongmen@users.noreply.github.com> Co-authored-by: Yiding Cui <winoros@gmail.com> Co-authored-by: ShuNing <nolouch@gmail.com> Co-authored-by: cfzjywxk <cfzjywxk@gmail.com> Co-authored-by: Aolin <aolinz@outlook.com> Co-authored-by: Grace Cai <qqzczy@126.com> Co-authored-by: xixirangrang <hfxsd@hotmail.com>
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| Original file line number | Diff line number | Diff line change |
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| --- | ||
| title: TiDB 6.1.6 Release Notes | ||
| summary: 了解 TiDB 6.1.6 版本的兼容性变更、改进提升，以及错误修复。 | ||
| --- | ||
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| # TiDB 6.1.6 Release Notes | ||
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| 发版日期：2023 年 4 月 12 日 | ||
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| TiDB 版本：6.1.6 | ||
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| 试用链接：[快速体验](https://docs.pingcap.com/zh/tidb/v6.1/quick-start-with-tidb) | [生产部署](https://docs.pingcap.com/zh/tidb/v6.1/production-deployment-using-tiup) | [下载离线包](https://cn.pingcap.com/product-community/?version=v6.1.6#version-list) | ||
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| ## 兼容性变更 | ||
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| - TiCDC 修复了 Avro 编码 FLOAT 类型数据错误的问题 [#8490](https://github.com/pingcap/tiflow/issues/8490) @[3AceShowHand](https://github.com/3AceShowHand) | ||
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| 在升级 TiCDC 集群到 v6.1.6 或更高的 v6.1.x 版本时，如果使用 Avro 同步的表包含 `FLOAT` 类型数据，请在升级前手动调整 Confluent Schema Registry 的兼容性策略为 `None`，使 changefeed 能够成功更新 schema。否则，在升级之后 changefeed 将无法更新 schema 并进入错误状态。 | ||
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| ## 提升改进 | ||
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| + TiDB | ||
| - Prepared Plan Cache 支持缓存 BatchPointGet 计划 [#42125](https://github.com/pingcap/tidb/issues/42125) @[qw4990](https://github.com/qw4990) | ||
| - Index Join 支持更多的 SQL 格式 [#40505](https://github.com/pingcap/tidb/issues/40505) @[Yisaer](https://github.com/Yisaer) | ||
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| + TiKV | ||
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| - 支持在小于 1 core 的 CPU 下启动 TiKV [#13586](https://github.com/tikv/tikv/issues/13586) [#13752](https://github.com/tikv/tikv/issues/13752) [#14017](https://github.com/tikv/tikv/issues/14017) @[andreid-db](https://github.com/andreid-db) | ||
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| ## Bug 修复 | ||
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| + TiDB | ||
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| - 修复 `ignore_plan_cache` hint 对 INSERT 语句可能不生效的问题 [#40079](https://github.com/pingcap/tidb/issues/40079) [#39717](https://github.com/pingcap/tidb/issues/39717) @[qw4990](https://github.com/qw4990) | ||
| - 修复了 `indexMerge` 遇到错误后可能会导致 TiDB 崩溃的问题 [#41047](https://github.com/pingcap/tidb/issues/41047) [#40877](https://github.com/pingcap/tidb/issues/40877) @[guo-shaoge](https://github.com/guo-shaoge) @[windtalker](https://github.com/windtalker) | ||
| - 修复错误下推包含虚拟列的 TopN 算子到 TiKV 或 TiFlash 导致结果错误的问题 [#41355](https://github.com/pingcap/tidb/issues/41355) @[Dousir9](https://github.com/Dousir9) | ||
| - 修复了使用 `Prepare` 或 `Execute` 查询某些虚拟表时无法将表 ID 下推，导致在大量 Region 的情况下 PD OOM 的问题 [#39605](https://github.com/pingcap/tidb/issues/39605) @[djshow832](https://github.com/djshow832) | ||
| - 修复 Plan Cache 处理 `int_col in (decimal...)` 条件时可能缓存 FullScan 计划的问题 [#40224](https://github.com/pingcap/tidb/issues/40224) @[qw4990](https://github.com/qw4990) | ||
| - 修复 IndexMerge 计划在 SET 类型列上可能生成错误区间的问题 [#41273](https://github.com/pingcap/tidb/issues/41273) [#41293](https://github.com/pingcap/tidb/issues/41293) @[time-and-fate](https://github.com/time-and-fate) | ||
| - 修复了无符号的 `TINYINT`/`SMALLINT`/`INT` 和小于 `0` 的 `DECIMAL`/`FLOAT`/`DOUBLE` 类型比较时，结果可能出错的问题 [#41736](https://github.com/pingcap/tidb/issues/41736) @[LittleFall](https://github.com/LittleFall) | ||
| - 修复了查询 `INFORMATION_SCHEMA.CLUSTER_SLOW_QUERY` 表导致 TiDB 服务器 OOM 的问题，在 Grafana dashboard 中查看慢查询记录的时候可能会触发该问题 [#33893](https://github.com/pingcap/tidb/issues/33893) @[crazycs520](https://github.com/crazycs520) | ||
| - 修复 Range 分区允许多个 `MAXVALUE` 分区的问题 [#36329](https://github.com/pingcap/tidb/issues/36329) @[u5surf](https://github.com/u5surf) | ||
| - 修复 Plan Cache 可能缓存 Shuffle 算子导致返回错误结果的问题 [#38335](https://github.com/pingcap/tidb/issues/38335) @[qw4990](https://github.com/qw4990) | ||
| - 修复了时区中的数据争用可能导致数据和索引不一致问题 [#40710](https://github.com/pingcap/tidb/issues/40710) @[wjhuang2016](https://github.com/wjhuang2016) | ||
| - 修复了 `indexMerge` 中可能会出现 goroutine 泄露的问题 [#41545](https://github.com/pingcap/tidb/issues/41545) [#41605](https://github.com/pingcap/tidb/issues/41605) @[guo-shaoge](https://github.com/guo-shaoge) | ||
| - 修复在使用 Cursor Fetch 且在 Execute、Fetch、Close 之间运行其它语句后，Fetch 与 Close 命令可能会返回错误结果或造成 TiDB Panic 的问题 [#40094](https://github.com/pingcap/tidb/issues/40094) [@YangKeao](https://github.com/YangKeao) | ||
| - 修复了使用 DDL 修改浮点类型时，保持长度不变且减少小数位后，旧数据仍然保持原样的问题 [#41281](https://github.com/pingcap/tidb/issues/41281) [@zimulala](https://github.com/zimulala) | ||
| - 修复了 Join `information_schema.columns` 表会造成 TiDB panic 的问题 [#32459](https://github.com/pingcap/tidb/issues/32459) [@tangenta](https://github.com/tangenta) | ||
| - 修复了生成执行计划过程中，因为获取的 InfoSchema 不一致而导致的 TiDB panic 的问题 [#41622](https://github.com/pingcap/tidb/issues/41622) [@tiancaiamao](https://github.com/tiancaiamao) | ||
| - 修复 TiFlash 执行中遇到生成列会报错的问题 [#40663](https://github.com/pingcap/tidb/issues/40663) @[guo-shaoge](https://github.com/guo-shaoge) | ||
| - 修复当同一个 SQL 中出现多个不同的分区表时，TiDB 可能执行得到错误结果的问题 [#42135](https://github.com/pingcap/tidb/issues/42135) @[mjonss](https://github.com/mjonss) | ||
| - 修复 Plan Cache 可能缓存 Shuffle 算子导致返回错误结果的问题 [#38335](https://github.com/pingcap/tidb/issues/38335) @[qw4990](https://github.com/qw4990) @[fzzf678](https://github.com/fzzf678) | ||
| - 修复使用 Index Merge 的方式读取包含 `SET` 类型列的表时，结果可能出错的问题 [#41293](https://github.com/pingcap/tidb/issues/41293) @[time-and-fate](https://github.com/time-and-fate) | ||
| - 修复在开启 Prepared Plan Cache 的情况下，索引全表扫可能会报错的问题 [#42150](https://github.com/pingcap/tidb/issues/42150) @[fzzf678](https://github.com/fzzf678) | ||
| - 修复在 DDL 执行过程中，使用 PointGet 读取表的 SQL 语句可能会在执行时抛出 panic 的问题 [#41622](https://github.com/pingcap/tidb/issues/41622) @[tiancaiamao](https://github.com/tiancaiamao) | ||
| - 修复事务内执行 PointUpdate 之后，`SELECT` 结果不正确的问题 [#28011](https://github.com/pingcap/tidb/issues/28011) @[zyguan](https://github.com/zyguan) | ||
| - 定期清理过期的 Region 缓存，避免内存泄漏和性能下降问题 [#40461](https://github.com/pingcap/tidb/issues/40461) @[sticnarf](https://github.com/sticnarf) @[zyguan](https://github.com/zyguan) | ||
| - 修复 `INSERT IGNORE` 和 `REPLACE` 语句对不修改 value 的 key 没有加锁的问题 [#42121](https://github.com/pingcap/tidb/issues/42121) @[zyguan](https://github.com/zyguan) | ||
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| + TiKV | ||
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| - 修复转换 `const Enum` 类型到其他类型时报错的问题 [#14156](https://github.com/tikv/tikv/issues/14156) @[wshwsh12](https://github.com/wshwsh12) | ||
| - 修复 CPU 配额限制的问题 [13084](https://github.com/tikv/tikv/issues/13084) @[BornChanger](https://github.com/BornChanger) | ||
| - 修复 Snapshot Last Index 不正确的问题 [12618](https://github.com/tikv/tikv/issues/12618) @[LintianShi](https://github.com/LintianShi) | ||
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| + PD | ||
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| - 修复 Region Scatter 接口可能导致 leader 分布不均匀的问题 [#6017](https://github.com/tikv/pd/issues/6017) @[HunDunDM](https://github.com/HunDunDM) | ||
| - 修复 Online Unsafe Recovery 超时机制不生效的问题 [#6107](https://github.com/tikv/pd/issues/6107) @[v01dstar](https://github.com/v01dstar) | ||
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| + TiFlash | ||
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| - 修复半连接在计算笛卡尔积时，使用内存过量的问题 [#6730](https://github.com/pingcap/tiflash/issues/6730) @[gengliqi](https://github.com/gengliqi) | ||
| - 修复 TiFlash 日志搜索过慢的问题 [#6829](https://github.com/pingcap/tiflash/issues/6829) @[hehechen](https://github.com/hehechen) | ||
| - 修复了开启 new collation 后 TopN/Sort 算子结果可能出错的问题 [#6807](https://github.com/pingcap/tiflash/issues/6807) @[xzhangxian1008](https://github.com/xzhangxian1008) | ||
| - 修复了 Decimal 转换在某些情况下进位错误的问题 [#6994](https://github.com/pingcap/tiflash/issues/6994) @[windtalker](https://github.com/windtalker) | ||
| - 修复 TiFlash 无法识别生成列的问题 [#6801](https://github.com/pingcap/tiflash/issues/6801) @[guo-shaoge](https://github.com/guo-shaoge) | ||
| - 修复了 Decimal 除法在某些情况下最后一位未进位的问题 [#7022](https://github.com/pingcap/tiflash/issues/7022) @[LittleFall](https://github.com/LittleFall) | ||
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| + Tools | ||
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| + TiCDC | ||
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| - 修复同步数据时由于 `UPDATE` 和 `INSERT` 语句乱序可能导致 `Duplicate entry` 错误的问题 [#8597](https://github.com/pingcap/tiflow/issues/8597) @[sdojjy](https://github.com/sojjy) | ||
| - 修复由于 PD 和 TiCDC 之间的网络隔离引起 TiCDC 程序异常退出的问题 [#8562](https://github.com/pingcap/tiflow/issues/8562) @[overvenus](https://github.com/overvenus) | ||
| - 修复下游为 TiDB 或 MySQL 时，无主键且非空唯一索引所在列指定了 CHARACTER SET 同步时可能会出现数据不一致的问题 [#8420](https://github.com/pingcap/tiflow/issues/8420) @[zhaoxinyu](https://github.com/zhaoxinyu) | ||
| - 修复 `db sorter` 使用内存时未受 `cgroup memory limit` 限制的问题 [#8588](https://github.com/pingcap/tiflow/issues/8588) @[amyangfei](https://github.com/amyangfei) | ||
| - 优化 `cdc cli` 在遇到非法输入时的错误提示 [#7903](https://github.com/pingcap/tiflow/issues/7903) @[CharlesCheung96](https://github.com/CharlesCheung96) | ||
| - 修复 redo log 容忍 S3 存储故障的时间过短的问题 [#8089](https://github.com/pingcap/tiflow/issues/8089) @[CharlesCheung96](https://github.com/CharlesCheung96) | ||
| - 修复在 PD 异常时，暂停一个 changefeed 会错误设置状态的问题 [#8330](https://github.com/pingcap/tiflow/issues/8330) @[sdojjy](https://github.com/sdojjy) | ||
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| + TiDB Lightning | ||
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| - 修复冲突处理逻辑 (`duplicate-resolution`) 可能导致 checksum 不一致的问题 [#40657](https://github.com/pingcap/tidb/issues/40657) @[gozssky](https://github.com/gozssky) | ||
| - 修复 TiDB Lightning 在 split-region 阶段发生 panic 的问题 [#40934](https://github.com/pingcap/tidb/issues/40934) @[lance6716](https://github.com/lance6716) | ||
| - 修复了在使用 Local Backend 模式导入数据时，当导入目标表的复合主键中存在 `auto_random` 列，且源数据中没有指定该列的值时，相关列没有自动生成数据的问题 [#41454](https://github.com/pingcap/tidb/issues/41454) @[D3Hunter](https://github.com/D3Hunter) | ||
| - 修复在并行导入时，当除最后一个 TiDB Lightning 实例外的其他实例都遇到本地重复记录时，TiDB Lightning 可能会错误地跳过冲突处理的问题 [#40923](https://github.com/pingcap/tidb/issues/40923) @[lichunzhu](https://github.com/lichunzhu) |
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