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https://issues.apache.org/jira/browse/SPARK-9415?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Reynold Xin resolved SPARK-9415.
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Resolution: Fixed
Assignee: Liang-Chi Hsieh
Fix Version/s: 1.5.0
> MapType should not support equality & ordering
> ----------------------------------------------
>
> Key: SPARK-9415
> URL: https://issues.apache.org/jira/browse/SPARK-9415
> Project: Spark
> Issue Type: Sub-task
> Components: SQL
> Reporter: Reynold Xin
> Assignee: Liang-Chi Hsieh
> Priority: Blocker
> Fix For: 1.5.0
>
>
> MapType today happened to support equality comparison because we use Scala
> maps under the hood. However, map type should not support equality, hash, or
> ordering (i.e. cannot be used as join keys, grouping keys, or in
> equality/ordering tests).
> We should throw the appropriate analysis exception for these cases.
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