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https://issues.apache.org/jira/browse/SPARK-6467?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14561529#comment-14561529
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Yin Huai commented on SPARK-6467:
---------------------------------

Probably {{Generate}} should override it? Seems, it is the cause of some wrong 
analysis error message (like, {{abc is not in col1, col2, abc, col3}}).

> Override QueryPlan.missingInput when necessary and rely on it CheckAnalysis
> ---------------------------------------------------------------------------
>
>                 Key: SPARK-6467
>                 URL: https://issues.apache.org/jira/browse/SPARK-6467
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 1.3.0
>            Reporter: Cheng Lian
>            Priority: Minor
>
> Currently, some LogicalPlans do not override missingInput, but they should. 
> Then, the lack of proper missingInput implementations leaks to CheckAnalysis.



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