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From "Apache Spark (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SPARK-17409) Query in CTAS is Optimized Twice
Date Thu, 13 Oct 2016 07:58:21 GMT

    [ https://issues.apache.org/jira/browse/SPARK-17409?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15571196#comment-15571196
] 

Apache Spark commented on SPARK-17409:
--------------------------------------

User 'gatorsmile' has created a pull request for this issue:
https://github.com/apache/spark/pull/15459

> Query in CTAS is Optimized Twice
> --------------------------------
>
>                 Key: SPARK-17409
>                 URL: https://issues.apache.org/jira/browse/SPARK-17409
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 2.1.0
>            Reporter: Xiao Li
>            Assignee: Xiao Li
>            Priority: Critical
>              Labels: correctness
>             Fix For: 2.1.0
>
>
> The query in CTAS is optimized twice, as reported in the PR: https://github.com/apache/spark/pull/14797
> {quote}
> Some analyzer rules have assumptions on logical plans, optimizer may break these assumption,
we should not pass an optimized query plan into QueryExecution (will be analyzed again), otherwise
we may some weird bugs.
> {quote}



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