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From Daniel John Debrunner <...@apache.org>
Subject Re: JDBC4 Spec exegesis needed, was: [jira] Commented: (DERBY-925) Implement new JDBC 4 metadata API getFunctionParameters()
Date Fri, 03 Mar 2006 17:17:59 GMT
Rick Hillegas wrote:

> Hi Lance,
> Is it OK for a JDBC3 implementation to return more information than the
> spec demands? In particular, consider the various result sets returned
> by DatabaseMetaData calls. Is it OK for these result sets to contain
> additional, trailing columns, above and beyond the columns required by
> the JDBC3 spec? To be even more pedantic, can JDBC3 implementations
> return the fatter JDBC4 result sets?

JDBC tutorial & reference, version 2.0, sdection 15.2.2, page 369 says:

"A DBMS may define additional columns for a ResultSet object that is
returned by a DatabaseMetaData method".

Not officially part of the spec, but I've always assumed the tutorial
books are a good guideline of the spec, given the authors.


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