Online Schema Change on TiDB

Online Schema Change on TiDB

February 11, 2023

There is a good video to describe a algorithms of TiDB:

Also, there are a few documents related to online DDL

Online Schema change

It seems it’s unable to confirm the schema version on TiKV node. Inside a PD node, it’s stored in the /tidb/ddl/global_schema_version in the etcd according to this article.

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