Navis created HIVE-7796:
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Summary: Provide subquery pushdown facility for storage handlers
Key: HIVE-7796
URL: https://issues.apache.org/jira/browse/HIVE-7796
Project: Hive
Issue Type: Improvement
Components: StorageHandler
Reporter: Navis
Assignee: Navis
Priority: Minor
Attachments: HIVE-7796.1.patch.txt
If underlying storage can handle basic filtering or aggregation, hive can
delegate execution of whole subquery to the storage and handle it as a simple
scanning operation.
Experimentally implemented on JDBC / Phoenix handler and seemed working good.
Hopefully open the code for those too, but it's not allowed to me yet.
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