[Feature][connector-cdc-mysql] Ignore SQL fields

[fanxishu]

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Description

When MySQL CDC (Change Data Capture) synchronizes data for updates and inserts, to achieve the functionality of ignoring specific fields in a table when synchronizing to the sink database while still performing updates and inserts, you need to implement field exclusion during the synchronization process.
当mysqlcdc 同步数据更新 插入 时候在同步到sink端数据库时候实现忽略某个表中字段实现 更新

"For example, in the scenario depicted above, when performing an INSERT operation, the subsequent UPDATE statement does not require an id value. When executing the UPDATE statement, there is no need to include the id field in the SET clause."
例如上面的图insert的时候插入语句后面update不需要id值 更新语句的时候不需要set id字段

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