[OASIS Issue Tracker] Commented: (CMIS-515) ORDER BY should allowqualified column names

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    [ http://tools.oasis-open.org/issues/browse/CMIS-515?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17313#action_17313 ] 

Al Brown commented on CMIS-515:
-------------------------------

JIRA Cleanup

> ORDER BY should allow qualified column names
> --------------------------------------------
>
>                 Key: CMIS-515
>                 URL: http://tools.oasis-open.org/issues/browse/CMIS-515
>             Project: OASIS Content Management Interoperability Services (CMIS) TC
>          Issue Type: Bug
>          Components: Domain Model
>    Affects Versions: Draft 0.62
>            Reporter: Florent Guillaume
>            Priority: Minor
>             Fix For: Committee Draft 04
>
>
> The BNF for a query has:
>   <sort specification> ::= <column name> [ ASC | DESC ] 
> However if we want to allow queries with JOINs to order their results, like:
>   SELECT B.cmis:ObjectId, B.dc:title FROM cmis:Document A JOIN cmis:Document B ON A.cmis:ObjectId = B.my:field WHERE A.dc:description = 'foo' ORDER BY B.dc:title
> Then we have to use a BNF like:
>   <sort specification> ::= <column reference> [ ASC | DESC ] 
> Note: In this BNF statement, SQL-92 has <column name>, but SQL 2008 actually has a very generic <value expression> instead. I think <column reference> is sufficient for CMIS.

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