Nattavut Sutyanyong created SPARK-18872:
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Summary: New test cases for EXISTS subquery
Key: SPARK-18872
URL: https://issues.apache.org/jira/browse/SPARK-18872
Project: Spark
Issue Type: Sub-task
Components: SQL, Tests
Reporter: Nattavut Sutyanyong
This JIRA is for submitting a PR for new EXISTS/NOT EXISTS subquery test cases.
It follows the same idea as the IN subquery test cases which contain simple
patterns, then build more complex constructs in both parent and subquery sides.
This batch of test cases are mostly, if not all, positive test cases that do
not return any syntax errors or unsupported functionality. We make effort to
have test cases returning rows in the result set so that they can indirectly
detect incorrect result problems.
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