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From "Apache Spark (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SPARK-8658) AttributeReference equals method only compare name, exprId and dataType
Date Thu, 22 Oct 2015 04:52:27 GMT

    [ https://issues.apache.org/jira/browse/SPARK-8658?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14968553#comment-14968553
] 

Apache Spark commented on SPARK-8658:
-------------------------------------

User 'gatorsmile' has created a pull request for this issue:
https://github.com/apache/spark/pull/9216

> AttributeReference equals method only compare name, exprId and dataType
> -----------------------------------------------------------------------
>
>                 Key: SPARK-8658
>                 URL: https://issues.apache.org/jira/browse/SPARK-8658
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 1.3.0, 1.3.1, 1.4.0
>            Reporter: Antonio Jesus Navarro
>
> The AttributeReference "equals" method only accept as different objects with different
name, expression id or dataType. With this behavior when I tried to do a "transformExpressionsDown"
and try to transform qualifiers inside "AttributeReferences", these objects are not replaced,
because the transformer considers them equal.
> I propose to add to the "equals" method this variables:
> name, dataType, nullable, metadata, epxrId, qualifiers



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