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https://issues.apache.org/jira/browse/HIVE-5895?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13838265#comment-13838265
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Eric Hanson commented on HIVE-5895:
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E.g. you could have a vectorized row batch with 1024 entries, and only items
(rows) 0 and 2 are selected. Then if you do an operation like col/0, the result
column will be repeating and null. But only items 0 and 2 will be selected. The
selected array tells you which rows in the batch are selected.
> vectorization handles division by zero differently from normal execution
> ------------------------------------------------------------------------
>
> Key: HIVE-5895
> URL: https://issues.apache.org/jira/browse/HIVE-5895
> Project: Hive
> Issue Type: Bug
> Reporter: Sergey Shelukhin
> Assignee: Sergey Shelukhin
> Priority: Minor
> Attachments: HIVE-5895.01.patch, HIVE-5895.02.patch, HIVE-5895.patch
>
>
> Produces infinity, not NULL
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