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https://issues.apache.org/jira/browse/CALCITE-2332?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jesus Camacho Rodriguez updated CALCITE-2332:
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Summary: Wrong simplification of FLOOR(CEIL(x)) to FLOOR(x) (was: It's
wrong to simplify FLOOR(CEIL(x)) to FLOOR(x))
> Wrong simplification of FLOOR(CEIL(x)) to FLOOR(x)
> --------------------------------------------------
>
> Key: CALCITE-2332
> URL: https://issues.apache.org/jira/browse/CALCITE-2332
> Project: Calcite
> Issue Type: Bug
> Reporter: Julian Hyde
> Assignee: Jesus Camacho Rodriguez
> Priority: Major
>
> It's not valid to simplify {{FLOOR(CEIL\(x))}} to {{FLOOR\(x)}}.
> Specifically, it is not valid to simplify {{FLOOR(CEIL(x TO YEAR) TO YEAR)}}
> to {{FLOOR(x TO YEAR)}} when {{x}} is {{TIMESTAMP '2010-10-10 00:00:00'}}. I
> believe the correct simplification is {{CEIL(x TO YEAR)}}.
> I have disabled {{RexImplicationCheckerTest.testSimplifyFloor}} due to this
> issue. Please re-enable it as part of the fix for this bug.
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