Chengxiang Li created HIVE-11267:
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Summary: Combine equavilent leaf works in SparkWork[Spark Branch]
Key: HIVE-11267
URL: https://issues.apache.org/jira/browse/HIVE-11267
Project: Hive
Issue Type: Sub-task
Components: Spark
Reporter: Chengxiang Li
Assignee: Chengxiang Li
Priority: Minor
There could be multi leaf works in SparkWork, like self-union query. If the
subqueries are same with each other, we may combine the subqueries, and just
execute once, then fetch twice in FetchTask.
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