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From "Michael Bouschen (JIRA)" <j...@apache.org>
Subject [jira] Updated: (JDO-569) Update the query BNF for subquery support
Date Sun, 03 Feb 2008 20:59:09 GMT

     [ https://issues.apache.org/jira/browse/JDO-569?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Michael Bouschen updated JDO-569:
---------------------------------

    Attachment: JDOQL 2.1 BNF.mif

Attached you find an updated version of the JDOQL BNF. It includes a new subsection describing
subqueries:

--------------------------------

Subqueries

This section describes the syntax of subqueries in JDOQL. 

Subquery:
     SubquerySelect SubqueryFrom Where(opt) Decls

SubquerySelect:
     select SubqueryResultClause

SubqueryResultClause:
     distinctopt Expression (,opt)

SubqueryFrom:
     from CandidateClassName Alias(opt) ExcludeClause(opt)
     from FieldAccess Alias(opt)

Alias:
     as(opt) Identifier

> Update the query BNF for subquery support
> -----------------------------------------
>
>                 Key: JDO-569
>                 URL: https://issues.apache.org/jira/browse/JDO-569
>             Project: JDO
>          Issue Type: Task
>          Components: specification
>            Reporter: Craig Russell
>            Assignee: Michael Bouschen
>             Fix For: JDO 2 maintenance release 1
>
>         Attachments: JDOQL 2.1 BNF.mif
>
>
> The query BNF needs to be updated for subqueries. 

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