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https://issues.apache.org/jira/browse/SPARK-19154?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15817213#comment-15817213
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Wenchen Fan commented on SPARK-19154:
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it turns out that we still remove all the files before overwrite, and there is
no easy way to support this feature unless we overwrite data to a temp
directory first. I'm closing this ticket as "later".
> support read and overwrite a same table
> ---------------------------------------
>
> Key: SPARK-19154
> URL: https://issues.apache.org/jira/browse/SPARK-19154
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Reporter: Wenchen Fan
>
> In SPARK-5746 , we forbid users to read and overwrite a same table. It seems
> like we don't need this limitation now, we can remove the check and add
> regression tests. We may need to take care of partitioned table though.
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