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https://issues.apache.org/jira/browse/HIVE-8391?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14163548#comment-14163548
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Matt McCline commented on HIVE-8391:
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I attached a modified version of
../../ql/src/test/results/clientpositive/vectorization_7.q that first makes
sure the query had a Map stage and vectorizes instead of the Fetch stage (SET
hive.fetch.task.conversion=minimal).
I get differences when vectorization is turned off and on with this q file.
Not sure what is going on. Haven't tried CBO yet.
> Comparion between TIMESTAMP and Integer types goes to STRING as "common
> comparison denominator" instead of a numeric type
> -------------------------------------------------------------------------------------------------------------------------
>
> Key: HIVE-8391
> URL: https://issues.apache.org/jira/browse/HIVE-8391
> Project: Hive
> Issue Type: Bug
> Components: CBO, Logical Optimizer
> Affects Versions: 0.14.0
> Reporter: Matt McCline
> Assignee: Jason Dere
> Priority: Critical
> Fix For: 0.14.0
>
> Attachments: HIVE-8391.1.patch, vectorization_7.q
>
>
> Discovered while investigating why vectorization_7.q has different results
> for non-vectorized [+CBO] and vectorized [+CBO].
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