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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Stephan Szabo <sszabo@megazone.bigpanda.com>
Cc: Enio Schutt Junior <enio@pmpf.rs.gov.br>
Cc: pgsql-sql@postgresql.org
Subject: Re: Sometimes referential integrity seems not to work
Date: Sat, 31 Jan 2004 18:40:48 -0500
Message-ID: <9148.1075592448@sss.pgh.pa.us> (raw)
In-Reply-To: <20040131124500.H98710@megazone.bigpanda.com>
References: <20040126175147.B3BD046E09@mail.passofundo.rs.gov.br>
	<20040131124500.H98710@megazone.bigpanda.com>

Stephan Szabo <sszabo@megazone.bigpanda.com> writes:
> On Mon, 26 Jan 2004, Enio Schutt Junior wrote:
>> In a database I am working, I sometimes have to delete all the records in
>> some tables. According to the referential integrity defined in the creation
>> of the tables, postmaster should not delete the records, but it does. I have
>> used the following commands: "delete from table_1" and "truncate table_1".
>> ...
>> can the postgres user delete records despite referential integrity?

> It shouldn't.  Can you give your version information and a complete
> standalone example?

I think the first PG release or two that had TRUNCATE TABLE would allow
you to apply it despite the existence of foreign-key constraints on the
table.  Recent releases won't though.

			regards, tom lane



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