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https://issues.apache.org/jira/browse/HIVE-12750?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15071828#comment-15071828
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Matt McCline commented on HIVE-12750:
-------------------------------------
Validation that there are no true flags in isNull in a ColumnVector when
noNulls is true found 2 problems: ConstantVectorExpression.evaluate and
TreeReader.nextVector -- the 2nd one solved the wrong results problem.
All other changes are validation calls under Google Preconditions.
> Vectorization logic not maintaining noNulls flag and isNull array properly
> causing wrong query results
> ------------------------------------------------------------------------------------------------------
>
> Key: HIVE-12750
> URL: https://issues.apache.org/jira/browse/HIVE-12750
> Project: Hive
> Issue Type: Bug
> Components: Hive
> Reporter: Matt McCline
> Assignee: Matt McCline
> Priority: Critical
> Attachments: HIVE-12750.1.patch, HIVE-12750.2.patch,
> HIVE-12750.3.patch
>
>
> A very large query produced wrong results due to not maintaining noNulls flag
> and isNull array properly. No Q file since input files too large.
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