Re: DatabaseMetaData.getImportedKeys returning duplicate - Mailing list pgsql-jdbc

From Dave Cramer
Subject Re: DatabaseMetaData.getImportedKeys returning duplicate
Date
Msg-id 1048559984.1193.17.camel@inspiron.cramers
Whole thread Raw
In response to Re: DatabaseMetaData.getImportedKeys returning duplicate  (Peter Royal <proyal@pace2020.com>)
List pgsql-jdbc
Patch applied, to 7.2.3, and HEAD

Thanks,
Dave


On Mon, 2003-03-17 at 10:53, Peter Royal wrote:
> On Monday, March 17, 2003, at 04:07  AM, Dave Cramer wrote:
> > I didn't see your first message ??
>
> I got a copy back when I sent it.. but it was the first message I had
> sent since subscribing. o well.
>
> > Yes this is a valid fix.
>
> Thanks. Should I submit a patch for this, since it is a trivial
> one-line change.
> -pete
>
> >
> > Dave
> > On Sun, 2003-03-16 at 21:39, Peter Royal wrote:
> >> Anyone? Is a specific testcase needed? Is no-one else using this
> >> metadata?
> >> thanks.
> >> -pete
> >>
> >> On Monday, March 3, 2003, at 09:27  PM, Peter Royal wrote:
> >>
> >>> I am having a problem with the DatabaseMetaData.getImportedKeys()
> >>> function. I am asking for the keys with respect to a specific table.
> >>> All is fine, except when I have two columns in a table that are both
> >>> foreign keys to another table, ie:
> >>>
> >>> Table A            Table B
> >>> -------            -------
> >>>   col1  -----------pk
> >>>   col2  -----------/
> >>>
> >>> The ResultSet returned from getImportedKeys is structured:
> >>>
> >>> col1
> >>> col2
> >>> col1
> >>> col2
> >>>
> >>> If I execute the query that is generated behind the scenes in the
> >>> psql
> >>> command-line program, adding the DISTINCT keyword to the query causes
> >>> it to return the proper number of rows. Is that a valid fix, or will
> >>> that break something else? Should the duplicate-reduction be done
> >>> inside the java code that creates the ResultSet? I have no problem
> >>> making the fix, I just don't know enough about the jdbc internals
> >>> (nor
> >>> postgres itself, I'm a new user) to be confident enough to know
> >>> exactly *what* to fix.
> >>>
> >>> Anyways great work thus far, I look forward to helping improve the
> >>> driver!
> >>> -pete
> >>>
> >>> --
> >>> peter royal -> proyal@pace2020.com
> >>>
> >>>
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> >>
> >>
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> > --
> > Dave Cramer <davec@fastcrypt.com>
> > Cramer Consulting
> > --
> > Dave Cramer <Dave@micro-automation.net>
> >
> >
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--
Dave Cramer <davec@fastcrypt.com>
Cramer Consulting
--
Dave Cramer <Dave@micro-automation.net>


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