[jira] [Updated] (CALCITE-88) Add collation as a trait and a kind of RelNode metadata

["Julian Hyde (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CALCITE-88?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Julian Hyde updated CALCITE-88:
-------------------------------
    Summary: Add collation as a trait and a kind of RelNode metadata  (was: Allow for preserving traits in the op tree)

> Add collation as a trait and a kind of RelNode metadata
> -------------------------------------------------------
>
>                 Key: CALCITE-88
>                 URL: https://issues.apache.org/jira/browse/CALCITE-88
>             Project: Calcite
>          Issue Type: Bug
>            Reporter: GitHub Import
>            Assignee: Julian Hyde
>              Labels: github-import
>
> Allow for traits to propagate up the tree.
> Ex: J2-F-J1
> If J1 uses SortMerge for Join then filter carries forward sordidness trait on join keys; If J2 is joining on same keys then it can take advantage of the sordidness trait of its child.
> ---------------- Imported from GitHub ----------------
> Url: https://github.com/julianhyde/optiq/issues/88
> Created by: [jpullokkaran|https://github.com/jpullokkaran]
> Labels: 
> Created at: Thu Nov 28 00:21:59 CET 2013
> State: open



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