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https://issues.apache.org/jira/browse/CALCITE-996?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jesus Camacho Rodriguez resolved CALCITE-996.
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Resolution: Fixed
Fixed in http://git-wip-us.apache.org/repos/asf/calcite/commit/9f6f23d.
> Predicate should be simplified when we create a Filter operator
> ---------------------------------------------------------------
>
> Key: CALCITE-996
> URL: https://issues.apache.org/jira/browse/CALCITE-996
> Project: Calcite
> Issue Type: Improvement
> Components: core
> Affects Versions: 1.5.0
> Reporter: Jesus Camacho Rodriguez
> Assignee: Jesus Camacho Rodriguez
> Priority: Minor
> Fix For: 1.6.0
>
>
> When we create a Filter operator, there is a chance we end up with duplicate
> predicate factors (for instance, this has been seen in Hive when we use
> FilterMergeRule). It seems appropriate to simplify the predicate to eliminate
> those factors before we create the filter.
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