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Posted to issues@spark.apache.org by "Yin Huai (JIRA)" <ji...@apache.org> on 2014/06/19 23:03:25 UTC

[jira] [Commented] (SPARK-1800) Add broadcast hash join operator

    [ https://issues.apache.org/jira/browse/SPARK-1800?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14037880#comment-14037880 ] 

Yin Huai commented on SPARK-1800:
---------------------------------

Maybe add an improvement in future that tasks in the same node can share those hashtables. 

Also, if we have a star join, maybe we want to limit the total size of those hashtables? So, they will not occupy too much space.

> Add broadcast hash join operator
> --------------------------------
>
>                 Key: SPARK-1800
>                 URL: https://issues.apache.org/jira/browse/SPARK-1800
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>            Reporter: Michael Armbrust
>            Assignee: Michael Armbrust
>             Fix For: 1.1.0
>
>




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