[jira] [Resolved] (CALCITE-2240) Extend rule to push predicates into CASE statement

["Jesus Camacho Rodriguez (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CALCITE-2240?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jesus Camacho Rodriguez resolved CALCITE-2240.
----------------------------------------------
       Resolution: Fixed
    Fix Version/s: 1.17.0

Fixed in http://git-wip-us.apache.org/repos/asf/calcite/commit/9e07f13 .

> Extend rule to push predicates into CASE statement
> --------------------------------------------------
>
>                 Key: CALCITE-2240
>                 URL: https://issues.apache.org/jira/browse/CALCITE-2240
>             Project: Calcite
>          Issue Type: Bug
>            Reporter: Zoltan Haindrich
>            Assignee: Zoltan Haindrich
>            Priority: Major
>             Fix For: 1.17.0
>
>
> [CaseShuttle|https://github.com/apache/calcite/blob/8139acb78b100483fbafb078fb82d07f921abef0/core/src/main/java/org/apache/calcite/rel/rules/ReduceExpressionsRule.java#L562] may make the optimization but the functions return value doesn't depend on that.
> For the following query the =1 is not pushed into the case.
> {code}
> select empno from emp where case when sal > 1000 then empno else sal end = 1
> {code}



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