[jira] [Commented] (SPARK-10591) False negative in QueryTest.checkAnswer

["Apache Spark (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SPARK-10591?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15350064#comment-15350064 ] 

Apache Spark commented on SPARK-10591:
--------------------------------------

User 'dongjoon-hyun' has created a pull request for this issue:
https://github.com/apache/spark/pull/13913

> False negative in QueryTest.checkAnswer
> ---------------------------------------
>
>                 Key: SPARK-10591
>                 URL: https://issues.apache.org/jira/browse/SPARK-10591
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL, Tests
>    Affects Versions: 1.0.2, 1.1.1, 1.2.2, 1.3.1, 1.4.1, 1.5.0
>            Reporter: Cheng Lian
>
> {{checkAnswer}} doesn't handle {{Map\[K, V\]}} properly. For example:
> {noformat}
> scala> Map(1 -> 2, 2 -> 1).toString
> res0: String = Map(1 -> 2, 2 -> 1)
> scala> Map(2 -> 1, 1 -> 2).toString
> res1: String = Map(2 -> 1, 1 -> 2)
> {noformat}
> We can't rely on {{toString}} to compare {{Map\[K, V\]}} instances.
> Need to update {{checkAnswer}} to special case {{Map\[K, V\]}}.



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