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Posted to issues@spark.apache.org by "Sean Owen (JIRA)" <ji...@apache.org> on 2015/04/25 23:58:39 UTC

[jira] [Updated] (SPARK-5404) Statistic of Logical Plan is too aggresive

     [ https://issues.apache.org/jira/browse/SPARK-5404?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sean Owen updated SPARK-5404:
-----------------------------
    Assignee: Cheng Hao

> Statistic of Logical Plan is too aggresive
> ------------------------------------------
>
>                 Key: SPARK-5404
>                 URL: https://issues.apache.org/jira/browse/SPARK-5404
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>            Reporter: Cheng Hao
>            Assignee: Cheng Hao
>             Fix For: 1.4.0
>
>
> The statistic number of a logical plan is quite helpful while do optimization like join reordering, however, the default algorithm is too aggressive, which probably lead to a totally wrong join order.



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