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https://issues.apache.org/jira/browse/SPARK-13418?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15155928#comment-15155928
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Reynold Xin commented on SPARK-13418:
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cc [~liancheng] it seems to me this would be easier if we have .sql in logical 
plans, rather than having them in the hive package ...



> SQL generation for uncorrelated scalar subqueries
> -------------------------------------------------
>
>                 Key: SPARK-13418
>                 URL: https://issues.apache.org/jira/browse/SPARK-13418
>             Project: Spark
>          Issue Type: Sub-task
>          Components: SQL
>            Reporter: Reynold Xin
>
> This is pretty difficult right now because SQLBuilder is in the hive package, 
> whereas the sql function for ScalarSubquery is defined in catalyst package.



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