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From "Kim Haase (JIRA)" <j...@apache.org>
Subject [jira] Updated: (DERBY-4374) Document the CROSS JOIN operation in the reference manual
Date Fri, 02 Oct 2009 15:29:23 GMT

     [ https://issues.apache.org/jira/browse/DERBY-4374?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Kim Haase updated DERBY-4374:
-----------------------------

    Attachment: DERBY-4374-3.zip
                DERBY-4374-3.diff

Thanks again, Knut -- here is another patch (DERBY-4374-3.diff, DERBY-4374-3.zip) with these
changes. Hope it's okay.

You're right that the inner join version is slower than the (SELECT * FROM FLIGHTS, COUNTRIES)
S version (I am using 10.5.3 so I can't try the cross join myself) -- though it doesn't take
3 minutes by any means, more like 30 seconds vs. instantaneous. I wonder if something has
happened since 10.5.3 to slow it down even more.

> Document the CROSS JOIN operation in the reference manual
> ---------------------------------------------------------
>
>                 Key: DERBY-4374
>                 URL: https://issues.apache.org/jira/browse/DERBY-4374
>             Project: Derby
>          Issue Type: Improvement
>          Components: Documentation
>    Affects Versions: 10.6.0.0
>            Reporter: Knut Anders Hatlen
>            Assignee: Kim Haase
>         Attachments: DERBY-4374-2.diff, DERBY-4374-2.zip, DERBY-4374-3.diff, DERBY-4374-3.zip,
DERBY-4374.diff, DERBY-4374.stat, DERBY-4374.zip
>
>
> CROSS JOIN was added in DERBY-4355. We should document it alongside the other join operations
in the reference manual.

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