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Posted to issues@spark.apache.org by "Apache Spark (JIRA)" <ji...@apache.org> on 2014/09/28 08:06:33 UTC

[jira] [Commented] (SPARK-3711) Optimize where in clause filter queries

    [ https://issues.apache.org/jira/browse/SPARK-3711?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14150987#comment-14150987 ] 

Apache Spark commented on SPARK-3711:
-------------------------------------

User 'saucam' has created a pull request for this issue:
https://github.com/apache/spark/pull/2561

> Optimize where in clause filter queries
> ---------------------------------------
>
>                 Key: SPARK-3711
>                 URL: https://issues.apache.org/jira/browse/SPARK-3711
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 1.1.0
>            Reporter: Yash Datta
>            Priority: Minor
>             Fix For: 1.1.1
>
>
> The In case class is replaced by a InSet class in case all the filters are literals, which uses a hashset instead of Sequence,  thereby giving significant performance improvement. Maximum improvement should be visible in case small percentage of large data matches the filter list  



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