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https://issues.apache.org/jira/browse/HIVE-23326?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17095988#comment-17095988
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Jesus Camacho Rodriguez commented on HIVE-23326:
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This is expected. The optimization is not available for MR and default value
was 0.99, that is why you were finding that value in the q.out files before.
You can close this as not an issue.
> Investigate minReductionHashAggr modifications
> ----------------------------------------------
>
> Key: HIVE-23326
> URL: https://issues.apache.org/jira/browse/HIVE-23326
> Project: Hive
> Issue Type: Sub-task
> Reporter: Miklos Gergely
> Priority: Major
>
> At some q tests the minReductionHashAggr was modified in the output after
> moving to TestMiniLlapLocalCliDriver, for example acid_nullscan.q,
> correlationoptimizer9.q. Check
> [https://reviews.apache.org/r/72421/#comment308835] for details.
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