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sql: add three imcompatible items
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lilin90 committed Jan 8, 2019
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Expand Up @@ -33,6 +33,9 @@ TiDB 支持包括跨行事务、JOIN 及子查询在内的绝大多数 MySQL 5.7
* X Protocol
* Savepoints
* 列级权限
* `CREATE TABLE tblName AS SELECT stmt` 语法
* `CREATE TEMPORARY TABLE` 语法
* `XA` 语法(TiDB 内部使用两阶段提交,但并没有通过 SQL 接口公开)

## 与 MySQL 有差异的特性

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