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br: add collation restriction
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3pointer committed Jun 15, 2020
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Expand Up @@ -14,6 +14,7 @@ Backup & Restore(以下简称 BR)是 TiDB 分布式备份恢复的命令行
- BR 只支持 TiDB v3.1 及以上版本。
- 目前只支持在全新的集群上执行恢复操作。
- BR 备份最好串行执行,否则不同备份任务之间会相互影响。
- BR 只支持 `new_collations_enabled_on_first_bootstrap` [开关值](/character-set-and-collation.md#排序规则支持)相同的集群之间进行操作。

## 推荐部署配置

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