From: Marc G. Fournier <scrappy@postgresql.org>
To: pgsql-hackers@postgresql.org
Subject: ALTER TABLE ( smallinto -> boolean ) ...
Date: Mon, 29 Aug 2005 20:15:41 -0300 (ADT)
Message-ID: <20050829201253.X1044@ganymede.hub.org> (raw)
I have a table with several 'smallint' fields that I'd like to convert to
booleean ... the data in each is either 0 or 1, and:
# select '1'::boolean;
bool
------
t
(1 row)
# select '0'::boolean;
bool
------
f
(1 row)
so they do cast as expected ... but, if I try to do the ALTER, I get:
# ALTER TABLE table ALTER COLUMN field1 type boolean;
ERROR: column "field1" cannot be cast to type "pg_catalog.bool"
Should this not work? If not, is there a way to do it so that it will,
without having to reload the whole table?
Thanks ...
----
Marc G. Fournier Hub.Org Networking Services (http://www.hub.org)
Email: scrappy@hub.org Yahoo!: yscrappy ICQ: 7615664
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To: pgsql-sql@postgresql.org
Cc: scrappy@postgresql.org, pgsql-hackers@postgresql.org
Subject: Re: ALTER TABLE ( smallinto -> boolean ) ...
In-Reply-To: <20050829201253.X1044@ganymede.hub.org>
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