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Posted to issues@spark.apache.org by "Xiao Li (JIRA)" <ji...@apache.org> on 2016/09/06 04:47:21 UTC

[jira] [Commented] (SPARK-17409) Query in CTAS is Optimized Twice

    [ https://issues.apache.org/jira/browse/SPARK-17409?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15466397#comment-15466397 ] 

Xiao Li commented on SPARK-17409:
---------------------------------

Working on it. Thanks!

> 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
>
> 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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