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https://issues.apache.org/jira/browse/CALCITE-1653?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15881538#comment-15881538
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Julian Hyde commented on CALCITE-1653:
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[~rusanu], OK, I've pushed a snapshot.
> Pass an expression executor to RexUtil.simplify for constant reduction
> ----------------------------------------------------------------------
>
> Key: CALCITE-1653
> URL: https://issues.apache.org/jira/browse/CALCITE-1653
> Project: Calcite
> Issue Type: Bug
> Reporter: Remus Rusanu
> Assignee: Remus Rusanu
> Fix For: 1.12.0
>
> Attachments: CALCITE-1653.00.patch
>
>
> Allow for custom RelOptPlanner.Executor in RexUtil.simplify.
> {{RexUtil.simplify}} (and derivatives) use a default {{EXECUTOR}} for
> evaluating literals and expression in {{simplifyCast}}. This causes value
> differences from Hive, triggering issues like CALCITE-1650, CALCITE-1651.
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