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From "Knut Anders Hatlen (JIRA)" <j...@apache.org>
Subject [jira] Commented: (DERBY-4495) Add NATURAL JOIN syntax
Date Mon, 28 Dec 2009 14:53:29 GMT

    [ https://issues.apache.org/jira/browse/DERBY-4495?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12794821#action_12794821
] 

Knut Anders Hatlen commented on DERBY-4495:
-------------------------------------------

Things that are known not to work with the preview patch, are:

  - expansion of asterisks should follow rules similar to the ones for the USING clause (see
DERBY-4370)

  - if there are no common columns, NATURAL JOIN should behave like CROSS JOIN, but currently
throws a NullPointerException

> Add NATURAL JOIN syntax
> -----------------------
>
>                 Key: DERBY-4495
>                 URL: https://issues.apache.org/jira/browse/DERBY-4495
>             Project: Derby
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 10.6.0.0
>            Reporter: Knut Anders Hatlen
>            Assignee: Knut Anders Hatlen
>            Priority: Minor
>         Attachments: natural_preview.diff
>
>
> It would be nice if Derby supported the NATURAL JOIN syntax (feature F401-01 in SQL:2003).

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