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Posted to derby-dev@db.apache.org by "Dag H. Wanvik (JIRA)" <ji...@apache.org> on 2010/05/14 18:24:42 UTC

[jira] Commented: (DERBY-4660) Expose merge join through optimizer override

    [ https://issues.apache.org/jira/browse/DERBY-4660?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12867549#action_12867549 ] 

Dag H. Wanvik commented on DERBY-4660:
--------------------------------------

+1

> Expose merge join through optimizer override
> --------------------------------------------
>
>                 Key: DERBY-4660
>                 URL: https://issues.apache.org/jira/browse/DERBY-4660
>             Project: Derby
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 10.7.0.0
>            Reporter: Knut Anders Hatlen
>            Priority: Minor
>
> Derby comes with a class called MergeJoinResultSet which is not currently used. As a first step towards full support for merge joins, we should expose the functionality provided by this class through an optimizer override, so that we can start testing it.

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