atoomula opened a new pull request #1242: SAMZA-2425: Add support for sub-query in joins URL: https://github.com/apache/samza/pull/1242 **Symptom**: Using sub-query with a join fails today with an unsupported exception. **Cause**: We have never supported sub-query in joins due to the way we have been parsing sql statements which was fixed recently. **Fix**: A simple code enhancement to handle logical filter while traversing the calcite logical plan to get the table IO. **Tests**: Added a Sql End-To-End test for sub-query and join.
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