beryllw opened a new pull request, #4015:
URL: https://github.com/apache/flink-cdc/pull/4015
**Description:**
This PR addresses the issue identified in FLINK-37677, where setting
`exclude.schema.changes: [create.table]` in the YAML configuration causes Flink
CDC to throw an `IllegalStateException`.
```
java.lang.IllegalStateException: Unable to coerce data record from
my_company.my_branch.customers (schema: columns={`id` INT,`name` STRING NOT
NULL,`age` SMALLINT}, primaryKeys=id, options=()) to
my_company.my_branch.customers (schema: null)
at
org.apache.flink.cdc.runtime.operators.schema.regular.SchemaOperator.lambda$handleDataChangeEvent$1(SchemaOperator.java:215)
at java.util.Optional.orElseThrow(Optional.java:290)
at
org.apache.flink.cdc.runtime.operators.schema.regular.SchemaOperator.handleDataChangeEvent(SchemaOperator.java:212)
at
org.apache.flink.cdc.runtime.operators.schema.regular.SchemaOperator.processElement(SchemaOperator.java:150)
at
org.apache.flink.cdc.runtime.operators.schema.regular.SchemaEvolveTest.processEvent(SchemaEvolveTest.java:2643)
at
org.apache.flink.cdc.runtime.operators.schema.regular.SchemaEvolveTest.testLenientSchemaEvolvesExcludeCreate(SchemaEvolveTest.java:2600)
at java.lang.reflect.Method.invoke(Method.java:498)
at java.util.ArrayList.forEach(ArrayList.java:1259)
at java.util.ArrayList.forEach(ArrayList.java:1259)
```
**Solution:**
- Always accept create.table event
- Skip apply create.table schema change event {} to external system
**Testing:**
Added unit tests.
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