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Posted to issues@calcite.apache.org by "Vladimir Sitnikov (Jira)" <ji...@apache.org> on 2019/12/29 10:54:00 UTC

[jira] [Updated] (CALCITE-3643) Prevent matching JoinCommuteRule when both inputs are the same

     [ https://issues.apache.org/jira/browse/CALCITE-3643?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Vladimir Sitnikov updated CALCITE-3643:
---------------------------------------
    Fix Version/s: 1.22.0

> Prevent matching JoinCommuteRule when both inputs are the same
> --------------------------------------------------------------
>
>                 Key: CALCITE-3643
>                 URL: https://issues.apache.org/jira/browse/CALCITE-3643
>             Project: Calcite
>          Issue Type: Improvement
>          Components: core
>            Reporter: Vladimir Sitnikov
>            Assignee: Vladimir Sitnikov
>            Priority: Major
>             Fix For: 1.22.0
>
>
> The conditions like =($0, $1) and =($1, $1) are equivalent, however adding that permutation increases search space and it gains nothing.



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