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From "Rick Hillegas (JIRA)" <j...@apache.org>
Subject [jira] Commented: (DERBY-3069) Derby does not resolve functions bound to methods with varargs.
Date Fri, 21 Sep 2007 13:08:51 GMT

    [ https://issues.apache.org/jira/browse/DERBY-3069?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12529415
] 

Rick Hillegas commented on DERBY-3069:
--------------------------------------

I agree with Dag here. I think that the divergence from the ANSI spec is in line with the
intention of the spec. I am inclined to do the following:

- Commit derby-3069-01-varargs-ab.diff.

- Add a note to the PARAMETER STYLE sub-topic of the CREATE FUNCTION topic in the Derby Reference
Guide. The note would explain the divergence from the ANSI spec.

Please let me know if there are any strong objections to this approach.

> Derby does not resolve functions bound to methods with varargs.
> ---------------------------------------------------------------
>
>                 Key: DERBY-3069
>                 URL: https://issues.apache.org/jira/browse/DERBY-3069
>             Project: Derby
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 10.0.2.0, 10.0.2.1, 10.1.1.0, 10.1.2.1, 10.1.3.1, 10.2.1.6, 10.2.2.0,
10.3.1.4
>            Reporter: Rick Hillegas
>            Assignee: Rick Hillegas
>         Attachments: derby-3069-01-varargs-aa.diff, derby-3069-01-varargs-ab.diff, z.java,
z.sql
>
>
> Varargs were added in Java 5. It would be nice if Derby let you invoke a function bound
to a method with a variable length argument list. The Reference Guide states a small number
of restrictions for methods which can be invoked as Derby functions: They must be public,
static, and not have arguments which are long datatypes. I see no reason that Derby shouldn't
be able to resolve and invoke functions which are bound to methods which don't suffer these
limitations but which have variable argument lists.

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