[jira] Resolved: (DERBY-4397) Allow ORDER BY in subqueries

["Dag H. Wanvik (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/DERBY-4397?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Dag H. Wanvik resolved DERBY-4397.
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    Resolution: Fixed

Resolving this issue; further optimization if deemed necessary later, will be handled in new a new issue.


> Allow ORDER BY in subqueries
> ----------------------------
>
>                 Key: DERBY-4397
>                 URL: https://issues.apache.org/jira/browse/DERBY-4397
>             Project: Derby
>          Issue Type: Improvement
>          Components: SQL
>            Reporter: Dag H. Wanvik
>            Assignee: Dag H. Wanvik
>         Attachments: derby-4397-1.diff, derby-4397-1.stat, derby-4397-2.diff, derby-4397-2.stat, derby-4397-all-subqueries.diff, derby-4397-all-subqueries.stat, derby-4397-insert-from-exists.diff, derby-4397-insert-from-exists.stat, derby-4397-sortavoidance-a.diff, derby-4397-sortavoidance-a.stat, orderBySpec.html, orderBySpec.html, orderBySpec.html, orderBySpec.html, orderBySpec.html, orderBySpec.html
>
>
> SQL 2008 allows ORDER BY to be specified in subqueries. In conjunction with OFFSET/FETCH and/or ROW_NUMBER
> meaningful subqueries with row ordering may be formulated. Cf. MySQL's LIMIT may be used in subqueries as well.
> Note that OFFSET/FETCH is currently not allowed in subqueries, either.

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