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From "Kim Haase (JIRA)" <j...@apache.org>
Subject [jira] Commented: (DERBY-4399) Syntax description for TableViewOrFunctionExpression lack subquery option
Date Fri, 20 Nov 2009 18:14:39 GMT

    [ https://issues.apache.org/jira/browse/DERBY-4399?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12780686#action_12780686
] 

Kim Haase commented on DERBY-4399:
----------------------------------

The new patch is DERBY-4399-2.diff. To avoid confusion, I removed the correlation-name topic
that was modified for the first patch.

> Syntax description for TableViewOrFunctionExpression lack subquery option
> -------------------------------------------------------------------------
>
>                 Key: DERBY-4399
>                 URL: https://issues.apache.org/jira/browse/DERBY-4399
>             Project: Derby
>          Issue Type: Bug
>          Components: Documentation
>    Affects Versions: 10.5.3.0
>            Reporter: Dag H. Wanvik
>            Assignee: Kim Haase
>         Attachments: DERBY-4399-2.diff, DERBY-4399.diff, rrefsqlj33215.html, rrefsqlj33215.html,
rreftableexpression.html, rreftableexpression.html
>
>
> In the reference manual, we find these syntax descriptions (start with http://db.apache.org/derby/docs/dev/ref/rrefsqlj21583.html):
> TableExpression:
> {
>   TableViewOrFunctionExpression | JOIN operation 
> }
> TableViewOrFunctionExpression:
> { table-Name | view-Name | TableFunctionInvocation}
>     [ [ AS ] correlation-Name
>         [ (Simple-column-Name [ , Simple-column-Name]* ) ] ] ]
> I cannot find a way from the "FROM clause" to the TableSubquery production, so I think
the latter should read:
> { table-Name | TableSubquery | view-Name | TableFunctionInvocation }
>     [ [ AS ] correlation-Name
>         [ (Simple-column-Name [ , Simple-column-Name]* ) ] ] ]
> Also, the "JOIN operation" is not clickable.

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