You are viewing a plain text version of this content. The canonical link for it is here.

Posted to issues@calcite.apache.org by "Laljo John Pullokkaran (JIRA)" <ji...@apache.org> on 2014/09/05 00:23:24 UTC

[jira] [Updated] (OPTIQ-400) RelField Trimmer needs to handle cross Joins

     [ https://issues.apache.org/jira/browse/OPTIQ-400?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Laljo John Pullokkaran updated OPTIQ-400:
-----------------------------------------
    Attachment: optiq-400.patch

> RelField Trimmer needs to handle cross Joins
> --------------------------------------------
>
>                 Key: OPTIQ-400
>                 URL: https://issues.apache.org/jira/browse/OPTIQ-400
>             Project: Optiq
>          Issue Type: Bug
>            Reporter: Laljo John Pullokkaran
>            Assignee: Laljo John Pullokkaran
>         Attachments: optiq-400.patch
>
>
> select R1.key from R1 Join R2 would result in field trimmer asking for nothing from R2. This is obviously wrong:
> It should either add a constant or get any one field so that cardinality of join is maintained.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)