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ticdc: update doc about ddl white list #19151

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8 changes: 6 additions & 2 deletions ticdc/ticdc-ddl.md
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Expand Up @@ -20,7 +20,7 @@ summary: 了解 TiCDC 支持同步的 DDL 和一些特殊情况
- add column
- drop column
- create index / add index
- drop index
- drop index *
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- truncate table
- modify column
- rename table
Expand All @@ -36,14 +36,18 @@ summary: 了解 TiCDC 支持同步的 DDL 和一些特殊情况
- alter database character set
- recover table
- add primary key
- drop primary key
- drop primary key *
- rebase auto id
- alter table index visibility
- exchange partition
- reorganize partition
- alter table ttl
- alter table remove ttl

> **注意:**
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>
> - 删除[有效索引](https://docs.pingcap.com/zh/tidb/stable/ticdc-overview#%E6%9C%80%E4%BD%B3%E5%AE%9E%E8%B7%B5)的 DDL (*号)可能会导致后续数据同步失败
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## DDL 同步注意事项

### 创建和添加索引 DDL 的异步执行
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