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Posted to issues@spark.apache.org by "Reynold Xin (JIRA)" <ji...@apache.org> on 2014/06/20 07:56:25 UTC

[jira] [Commented] (SPARK-2216) Cost-based join reordering

    [ https://issues.apache.org/jira/browse/SPARK-2216?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14038494#comment-14038494 ] 

Reynold Xin commented on SPARK-2216:
------------------------------------

The prerequisite of this change is to design the APIs for cardinality and size estimation for operators. 

> Cost-based join reordering
> --------------------------
>
>                 Key: SPARK-2216
>                 URL: https://issues.apache.org/jira/browse/SPARK-2216
>             Project: Spark
>          Issue Type: Sub-task
>          Components: SQL
>            Reporter: Cheng Hao
>
> Coat-based join reordering



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