[jira] [Comment Edited] (CALCITE-1220) Extend simplify for reducing expressions II

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

    [ https://issues.apache.org/jira/browse/CALCITE-1220?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15436737#comment-15436737 ] 

Jesus Camacho Rodriguez edited comment on CALCITE-1220 at 8/25/16 12:11 PM:
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[~julianhyde], I have updated the PR with CALCITE-1290 taken out and extended test coverage (existing ones are already covering some of the extensions as you can see).


was (Author: jcamachorodriguez):
[~julianhyde], I have pushed a new PR with CALCITE-1290 taken out and extended test coverage (existing ones are already covering some of the extensions as you can see).

> Extend simplify for reducing expressions II
> -------------------------------------------
>
>                 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
>
> 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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