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https://issues.apache.org/jira/browse/HIVE-16775?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16033206#comment-16033206
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Ashutosh Chauhan commented on HIVE-16775:
-----------------------------------------
[~jcamachorodriguez] We are not generating values operator, rather we are
trying to avoid generating one.
[~pxiong] I think Jesus suggestion of passing HiveRelBuilder is a good one and
will let us avoid overriding the rule in totality. And since NullScanOptimizer
optimizes limit 0 as well, we should get same effect as your current patch with
minimal (and better) code changes.
> Fix HiveFilterAggregateTransposeRule when filter is always false
> ----------------------------------------------------------------
>
> Key: HIVE-16775
> URL: https://issues.apache.org/jira/browse/HIVE-16775
> Project: Hive
> Issue Type: Sub-task
> Reporter: Pengcheng Xiong
> Assignee: Pengcheng Xiong
> Attachments: HIVE-16775.01.patch, HIVE-16775.02.patch
>
>
> query4.q,query74.q
> {code}
> [7e490527-156a-48c7-aa87-8c80093cdfa8 main] ql.Driver: FAILED:
> NullPointerException null
> java.lang.NullPointerException
> at
> org.apache.hadoop.hive.ql.optimizer.calcite.translator.ASTConverter$QBVisitor.visit(ASTConverter.java:457)
> at org.apache.calcite.rel.RelVisitor.go(RelVisitor.java:61)
> at
> org.apache.hadoop.hive.ql.optimizer.calcite.translator.ASTConverter.convert(ASTConverter.java:110)
> at
> org.apache.hadoop.hive.ql.optimizer.calcite.translator.ASTConverter.convertSource(ASTConverter.java:393)
> at
> org.apache.hadoop.hive.ql.optimizer.calcite.translator.ASTConverter.convert(ASTConverter.java:115)
> {code}
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