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List:       postgresql-sql
Subject:    [SQL] RE: [INTERFACES] Foreign Keys
From:       Michael Davis <michael.davis () prevuenet ! com>
Date:       1999-02-25 16:45:41
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Excellent!  I will start working on it. 

	-----Original Message-----
	From:	Byron Nikolaidis [SMTP:byronn@insightdist.com]
	Sent:	Thursday, February 25, 1999 8:38 AM
	To:	Michael Davis
	Cc:	'pgsql-interfaces@postgreSQL.org'; pgsql postgres;
pgsql-hackers@postgreSQL.org
	Subject:	Re: [INTERFACES] Foreign Keys



	Michael Davis wrote:

	> What is the possibility of recording foreign keys (a partial
foreign key
	> implementation) in the database such that the ODBC interface can
correctly
	> report them to client applications?  This would require an
enhancement to
	> Postgres and to the ODBC driver for Postgres.  I have a problem
with Access
	> 97 not working properly with forms that contain sub forms
representing
	> parent/child or master/detail tables.  For example: orders and
orderlines.
	> I think this is caused by the lack of foreign key support.  I am
basing this
	>

	The driver does support SQLForeignKeys.  It does say it supports
this function
	in SQLFunctions.

	However, the current implementation is based on the SPI/trigger
stuff from the
	pg_trigger table.  If you don't have any trigger info, then
SQLForeignKeys will
	not report anything.  This is most likely the problem.

	Byron

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