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From "Rick Hillegas (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DERBY-5779) Table functions should only accept arguments which are constant in their query block.
Date Thu, 12 Jul 2012 15:55:36 GMT

    [ https://issues.apache.org/jira/browse/DERBY-5779?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13412891#comment-13412891
] 

Rick Hillegas commented on DERBY-5779:
--------------------------------------

Committed derby-5779-02-aa-forbidReferencesToJoinedTables.diff at subversion revision 1360736.
                
> Table functions should only accept arguments which are constant in their query block.
> -------------------------------------------------------------------------------------
>
>                 Key: DERBY-5779
>                 URL: https://issues.apache.org/jira/browse/DERBY-5779
>             Project: Derby
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 10.9.1.0
>            Reporter: Rick Hillegas
>            Assignee: Rick Hillegas
>             Fix For: 10.10.0.0
>
>         Attachments: derby-5779-01-ab-forbidReferencesInQueryBlock.diff, derby-5779-02-aa-forbidReferencesToJoinedTables.diff,
releaseNote.html
>
>
> Derby lets you invoke a table function in the FROM list of a query, passing in arguments
built out of columns in other tables in the FROM list. This syntax is illegal and the resulting
queries have no meaning under the SQL Standard. See the discussion on DERBY-5554. We should
forbid this syntax. Similar syntax involving correlated subqueries in the FROM list is already
forbidden. Fixing this will create a backward incompatibility which requires a release note.

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