From: Chris Mair <chrisnospam@1006.org>
To: Lexington Luthor <Lexington.Luthor@gmail.com>
Cc: pgsql-sql@postgresql.org
Subject: Re: Querying constraints?
Date: Thu, 10 Aug 2006 21:25:20 +0200
Message-ID: <1155237920.5893.50.camel@dell.home.lan> (raw)
In-Reply-To: <eb7mq1$htu$1@sea.gmane.org>
References: <eb7mq1$htu$1@sea.gmane.org>
> Is is possible to query from my application whether there is a primary
> key or unique constraint on a given table and field name(s)?
Curiously enough, I just answered a similar question on the pgsql-admin
list. Try this:
SELECT c.relname as table, r.conname as contraint_name, r.contype as
contraint_type, pg_catalog.pg_get_constraintdef(r.oid, true) as
constraint_definition FROM pg_catalog.pg_constraint r,
pg_catalog.pg_class c WHERE c.oid = r.conrelid;
Bye,
Chris
--
Chris Mair
http://www.1006.org
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To: pgsql-sql@postgresql.org
Cc: chrisnospam@1006.org, Lexington.Luthor@gmail.com
Subject: Re: Querying constraints?
In-Reply-To: <1155237920.5893.50.camel@dell.home.lan>
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