[jira] [Commented] (CALCITE-850) Remove push down expressions from FilterJoinRule and create a new rule for it

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

    [ https://issues.apache.org/jira/browse/CALCITE-850?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14704632#comment-14704632 ] 

Jesus Camacho Rodriguez commented on CALCITE-850:
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I have created a pull request in https://github.com/apache/incubator-calcite/pull/122 . Changes in plans are swapping of join inputs.

[~julianhyde], [~jni], [~vladimirsitnikov], you all seemed to be involved in CALCITE-457, any thoughts? Thanks

> Remove push down expressions from FilterJoinRule and create a new rule for it
> -----------------------------------------------------------------------------
>
>                 Key: CALCITE-850
>                 URL: https://issues.apache.org/jira/browse/CALCITE-850
>             Project: Calcite
>          Issue Type: Bug
>            Reporter: Jesus Camacho Rodriguez
>            Assignee: Jesus Camacho Rodriguez
>
> CALCITE-457 added pushing expressions in join conditions into projects below the join in the FilterJoinRule, so the expression would be computed beforehand and not in the join predicate.
> While this can be an interesting feature for some projects using Calcite, it is a different functionality and it should be a standalone independent rule. For instance, in Hive we do not want to enable it at the moment, as it causes some performance regressions in many test cases.



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