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Posted to issues@calcite.apache.org by "Julian Hyde (Jira)" <ji...@apache.org> on 2020/02/12 00:15:00 UTC

[jira] [Resolved] (CALCITE-3713) Remove column names from Project#digest

     [ https://issues.apache.org/jira/browse/CALCITE-3713?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Julian Hyde resolved CALCITE-3713.
----------------------------------
    Resolution: Fixed

Marking fixed, because it is fixed.

Please create a new issue. Copy in the relevant discussion from github.

> Remove column names from Project#digest
> ---------------------------------------
>
>                 Key: CALCITE-3713
>                 URL: https://issues.apache.org/jira/browse/CALCITE-3713
>             Project: Calcite
>          Issue Type: Bug
>          Components: core
>    Affects Versions: 1.21.0
>            Reporter: Vladimir Sitnikov
>            Assignee: Vladimir Sitnikov
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 1.22.0
>
>          Time Spent: 4.5h
>  Remaining Estimate: 0h
>
> Projects that differ with column names only are equivalent, so the planning space can be reduced if field names do not participate in relation matching.
> For instance, {{Project(input=rel#1,empid=$0)}} and {{Project(input=rel#1,deptno=$0)}} are equivalent



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