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https://issues.apache.org/jira/browse/HIVE-24845?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17295374#comment-17295374
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David Mollitor commented on HIVE-24845:
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[~pgaref] FYI
> Make Return of InputEstimator estimate Optional
> -----------------------------------------------
>
> Key: HIVE-24845
> URL: https://issues.apache.org/jira/browse/HIVE-24845
> Project: Hive
> Issue Type: Improvement
> Reporter: David Mollitor
> Assignee: David Mollitor
> Priority: Major
>
> Make Return of InputEstimator estimate Optional so that an implementer can
> signal that it does not know the estimate and any optimizations around data
> size can be ignored.
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