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Posted to issues@calcite.apache.org by "Julian Hyde (JIRA)" <ji...@apache.org> on 2016/09/03 00:26:20 UTC

[jira] [Issue Comment Deleted] (CALCITE-1220) Further extend simplify for reducing expressions

     [ https://issues.apache.org/jira/browse/CALCITE-1220?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Julian Hyde updated CALCITE-1220:
---------------------------------
    Comment: was deleted

(was: Fix up committed as a parent commit of the fix for CALCITE-1366.)

> Further extend simplify for reducing expressions
> ------------------------------------------------
>
>                 Key: CALCITE-1220
>                 URL: https://issues.apache.org/jira/browse/CALCITE-1220
>             Project: Calcite
>          Issue Type: Bug
>          Components: core
>            Reporter: Jesus Camacho Rodriguez
>            Assignee: Jesus Camacho Rodriguez
>             Fix For: 1.9.0
>
>
> We would extend expression simplification, e.g.:
> - add walker to perform recursive simplification of expressions for Filter operators, and
> - extends simplification for CASE expressions to cover more cases e.g. if all return values are equal (including ELSE), CASE can be removed



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