From: | Andreas Kretschmer <akretschmer(at)spamfence(dot)net> |
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To: | pgsql-sql(at)postgresql(dot)org |
Subject: | Re: Drop all constraints |
Date: | 2010-03-06 17:17:05 |
Message-ID: | 20100306171705.GA31228@tux |
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Thread: | |
Lists: | pgsql-sql |
Gianvito Pio <pio(dot)gianvito(at)gmail(dot)com> wrote:
> Hi all,
> is there a way to drop all constraints of a table?
>
> I found this workaround in the manual:
>
> CREATE TABLE temp AS SELECT * FROM distributors;
> DROP TABLE distributors;
> CREATE TABLE distributors AS SELECT * FROM temp;
> DROP TABLE temp;
I think, you can change the table-name from temp to distributors:
(alter table temp rename to distributors), it's cheaper.
>
> Is there any other way to do it?
Maybe. I think you can walk through the system catalogs to find all
constraints for a table and drop them (alter table foo drop constraint
...). I think, you should start with
http://www.postgresql.org/docs/8.4/interactive/catalog-pg-constraint.html
Andreas
--
Really, I'm not out to destroy Microsoft. That will just be a completely
unintentional side effect. (Linus Torvalds)
"If I was god, I would recompile penguin with --enable-fly." (unknown)
Kaufbach, Saxony, Germany, Europe. N 51.05082°, E 13.56889°
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