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https://issues.apache.org/jira/browse/SPARK-15752?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15313793#comment-15313793
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Apache Spark commented on SPARK-15752:
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User 'lianhuiwang' has created a pull request for this issue:
https://github.com/apache/spark/pull/13494
> support optimization for metadata only queries
> ----------------------------------------------
>
> 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.
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