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Posted to issues@spark.apache.org by "Apache Spark (JIRA)" <ji...@apache.org> on 2017/03/28 07:55:41 UTC
[jira] [Commented] (SPARK-20124) Join reorder should keep the same
order of final project attributes
[ https://issues.apache.org/jira/browse/SPARK-20124?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15944717#comment-15944717 ]
Apache Spark commented on SPARK-20124:
--------------------------------------
User 'wzhfy' has created a pull request for this issue:
https://github.com/apache/spark/pull/17453
> Join reorder should keep the same order of final project attributes
> -------------------------------------------------------------------
>
> Key: SPARK-20124
> URL: https://issues.apache.org/jira/browse/SPARK-20124
> Project: Spark
> Issue Type: Sub-task
> Components: SQL
> Affects Versions: 2.2.0
> Reporter: Zhenhua Wang
>
> Join reorder algorithm should keep exactly the same order of output attributes in the top project.
> For example, if user want to select a, b, c, after reordering, we should output a, b, c in the same order as specified by user, instead of b, a, c or other orders.
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