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https://issues.apache.org/jira/browse/SPARK-17409?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15477685#comment-15477685
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Yin Huai edited comment on SPARK-17409 at 9/9/16 5:37 PM:
----------------------------------------------------------
Note: according to
https://github.com/apache/spark/pull/14797#issuecomment-244848780, this issue
only affects current master (spark 2.1).
was (Author: yhuai):
Note: according to
https://github.com/apache/spark/pull/14797#issuecomment-244848780, this issue
only affects current master (2.1).
> 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
>
> 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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