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From "A B (JIRA)" <derby-...@db.apache.org>
Subject [jira] Commented: (DERBY-1655) Document XML functionality for 10.2
Date Mon, 21 Aug 2006 19:09:15 GMT
    [ http://issues.apache.org/jira/browse/DERBY-1655?page=comments#action_12429495 ] 
A B commented on DERBY-1655:

> Okay to refer to it as a function instead of an operator?

Great question.  I guess I'm not sure what the answer here should be...

I've been calling these "operators" because that's the term used in the SQL/XML[2006] specification.

But the Derby doc says the following:

"A built-in function is an expression in which an SQL keyword or special operator executes
some operation."

And the SQL/XML specification indicates XMLEXISTS, etc are reserved keywords.  So based on
that I guess it would be okay to refer to the new SQL/XML operators as Derby built-in functions,
as well.

My gut feeling, though, is that we should continue to use the term "operator" for these because
a) that's the term used by the SQL/XML specification and b) I don't think we state anywhere
that an "operator" cannot be a "function" as well.

I am not going to complain one way or the other, though.  If anyone else has a strong preference,
feel free to speak up...

> Document XML functionality for 10.2
> -----------------------------------
>                 Key: DERBY-1655
>                 URL: http://issues.apache.org/jira/browse/DERBY-1655
>             Project: Derby
>          Issue Type: Task
>          Components: Documentation
>    Affects Versions:
>            Reporter: A B
>         Assigned To: Laura Stewart
>             Fix For:
>         Attachments: ctoolsimport27052.html, derby1655_devguide.diff, derby1655_devguide_html.zip,
derby1655_ref.diff, derby1655_ref_html.zip, derby1655_tools_html.diff, derby1655_tuning.diff,
derby1655_tuning_html.zip, DerbyXMLDoc_v1.html, DerbyXMLDoc_v2.html
> DERBY-334 and DERBY-688 have added an XML datatype and four XML operators to Derby. 
These are all going to be exposed to the user for general use as part of the 10.2. release,
so the datatype and operators need to be documented accordingly.

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