[jira] [Created] (FLINK-36514) Unable to override include/exclude schema types in lenient mode

["yux (Jira)" <ji...@apache.org>]

yux created FLINK-36514:
---------------------------

             Summary: Unable to override include/exclude schema types in lenient mode
                 Key: FLINK-36514
                 URL: https://issues.apache.org/jira/browse/FLINK-36514
             Project: Flink
          Issue Type: Bug
          Components: Flink CDC
            Reporter: yux


If schema evolution behavior is set to LENIENT, Truncate / Drop table events will be ignored by default. However, there's currently no way for users to override this behavior due to the following code:

```java
if (excludedSETypes.isEmpty()
&& SchemaChangeBehavior.LENIENT.equals(schemaChangeBehavior)) {
// In lenient mode, we exclude DROP_TABLE and TRUNCATE_TABLE by default. This could be
// overridden by manually specifying excluded types.
Stream.of(SchemaChangeEventType.DROP_TABLE, SchemaChangeEventType.TRUNCATE_TABLE)
.map(SchemaChangeEventType::getTag)
.forEach(excludedSETypes::add);
}
```
 
If one wants to exclude no types, it's actually not possible since passing `[]` is equivalent to passing nothing, and `DROP` and `TRUNCATE` events will still be ignored.



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