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https://issues.apache.org/jira/browse/CALCITE-953?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jesus Camacho Rodriguez closed CALCITE-953.
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Resolved in release 1.5.0 (2015-11-10)
> Improve RelMdPredicates to deal with RexLiteral
> -----------------------------------------------
>
> Key: CALCITE-953
> URL: https://issues.apache.org/jira/browse/CALCITE-953
> Project: Calcite
> Issue Type: Improvement
> Reporter: Pengcheng Xiong
> Assignee: Pengcheng Xiong
> Fix For: 1.5.0
>
> Attachments: CALCITE-953.01.patch, CALCITE-953.02.patch
>
>
> Right now, Calcite will treat a RexLiteral's ColumnOrigin as an empty set.
> Rather than dropping the information of RexLiteral, this patch proposes to
> keep this information in the RelColumnOrigin itself.
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