Message-Id: <36D56E55.5D42F476@insightdist.com>
Date: Thu, 25 Feb 1999 10:37:57 -0500
From: Byron Nikolaidis <byronn@insightdist.com>
Mime-Version: 1.0
To: Michael Davis <michael.davis@prevuenet.com>
Cc: "'pgsql-interfaces@postgreSQL.org'" <pgsql-interfaces@postgreSQL.org>,
	pgsql postgres <pgsql-sql@postgreSQL.org>, pgsql-hackers@postgreSQL.org
Subject: Re: [INTERFACES] Foreign Keys
References: <93C04F1F5173D211A27900105AA8FCFC1451F4@lambic.prevuenet.com>
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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