[ https://issues.apache.org/jira/browse/SPARK-15752?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Lianhui Wang updated SPARK-15752: --------------------------------- Summary: Optimize metadata only query that has an aggregate whose children are deterministic project or filter operators (was: support optimization for metadata only queries) > Optimize metadata only query that has an aggregate whose children are > deterministic project or filter operators > --------------------------------------------------------------------------------------------------------------- > > Key: SPARK-15752 > URL: https://issues.apache.org/jira/browse/SPARK-15752 > Project: Spark > Issue Type: Improvement > Components: SQL > Reporter: Lianhui Wang > > when query only use metadata (example: partition key), it can return results > based on metadata without scaning files. Hive did it in HIVE-1003. > design document: > https://docs.google.com/document/d/1Bmi4-PkTaBQ0HVaGjIqa3eA12toKX52QaiUyhb6WQiM/edit?usp=sharing -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org