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Add warning about using tiflash in read write txn #3396

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Merged
yikeke merged 6 commits into from
Jun 1, 2020
Merged

Add warning about using tiflash in read write txn #3396

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28a7752
Add warning about using tiflash in read write txn
zanmato1984 May 28, 2020
8f07e38
Merge branch 'master' into tiflash-read-write-txn-warn
zanmato1984 May 28, 2020
e67cd38
Update tiflash/use-tiflash.md
zanmato1984 May 29, 2020
5b558ea
Merge branch 'master' into tiflash-read-write-txn-warn
zanmato1984 Jun 1, 2020
0c5df25
delete extra spaces
yikeke Jun 1, 2020
463eb0d
to trigger ci again
yikeke Jun 1, 2020
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4 changes: 4 additions & 0 deletions tiflash/use-tiflash.md
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Expand Up @@ -13,6 +13,10 @@ TiFlash 部署完成后并不会自动同步数据，而需要手动指定需要
- [使用 TiDB 读取 TiFlash](#使用-tidb-读取-tiflash)
- [使用 TiSpark 读取 TiFlash](#使用-tispark-读取-tiflash)

> **注意：**
>
> 如果在含有写的事务中（比如事务中包含 `SELECT ... FOR UPDATE` 且后接 `UPDATE ...`）读取 TiFlash（见[使用 TiDB 读取 TiFlash](#使用-tidb-读取-tiflash)），目前行为是未定义，后续版本中会取消这个限制。

## 按表构建 TiFlash 副本

TiFlash 接入 TiKV 集群后，默认不会开始同步数据。可通过 MySQL 客户端向 TiDB 发送 DDL 命令来为特定的表建立 TiFlash 副本：
Expand Down