From: Christopher Kings-Lynne <chriskl@familyhealth.com.au>
To: Rajesh Kumar Mallah. <mallah@trade-india.com>
To: pgsql-sql@postgresql.org
Subject: Re: Is Dropping a column "CHECK" constraint possible?
Date: Sat, 6 Jul 2002 12:35:06 +0800
Message-ID: <00e101c224a6$81ee3bc0$0200a8c0@SOL> (raw)
References: <200207051729.42137.mallah@trade-india.com>
> can anyone please help?
> i have a to drop a check contstraint from a column. eg
>
> tradein_clients=# \d t_a
> Table "t_a"
> Column | Type | Modifiers
> ------------+---------+-----------
> company_id | integer |
> exp | text |
> imp | text |
> Check constraints: "$1" (length(imp) > 1)
> "aaaaaq" (length(imp) > 1)
>
> Can i remove to contraints thru ALTER TABLE or similar commands.
> I have read the docs for ALTER TABLE but the command described is
> not working for me.
This should work, so long as you're using postgres 7.2+
ALTER TABLE "t_a" DROP CONSTRAINT "aaaaaq" RESTRICT;
Chris
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To: pgsql-sql@postgresql.org
Cc: chriskl@familyhealth.com.au, mallah@trade-india.com
Subject: Re: Is Dropping a column "CHECK" constraint possible?
In-Reply-To: <00e101c224a6$81ee3bc0$0200a8c0@SOL>
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