Yanquan Lv created FLINK-39294:
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             Summary: [DOC] Add documentation for PostgreSQL CDC 
`schema.change.enabled` option
                 Key: FLINK-39294
                 URL: https://issues.apache.org/jira/browse/FLINK-39294
             Project: Flink
          Issue Type: Improvement
          Components: Flink CDC
    Affects Versions: cdc-3.6.0
            Reporter: Yanquan Lv


*{*}Description:{*}*

The PR FLINK-38959[postgres] Update split state's table schemas info and infer 
schema change event based on pgoutput plugin's relation message (#4316) 
introduced a new configuration option for the PostgreSQL CDC connector.

*{*}New Configuration Option:{*}*
|Option|Type|Default|Description|
|--------|------|---------|-------------|
|`schema.change.enabled`|Boolean|`false`|Whether to enable schema change event 
capture. When enabled, the connector will capture schema change events from the 
pgoutput plugin's relation messages and update the table schema accordingly.|

*{*}What needs to be documented:{*}*

1. Add the new `schema.change.enabled` option to the PostgreSQL CDC connector 
configuration table in the documentation.
2. Explain the purpose of this option: it allows the connector to capture and 
handle DDL changes (e.g., `ALTER TABLE ADD COLUMN`) during incremental reading 
phase by leveraging the pgoutput plugin's relation messages.
3. Note that this feature is marked as `@Experimental`.

*{*}Related PR:{*}*
[https://github.com/apache/flink-cdc/pull/4316]



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