From: Richard Huxton <dev@archonet.com>
To: Senthil Kumar S <ssakkaravel@ivesia.com>
To: psql <pgsql-sql@postgresql.org>
Subject: Re: Change column data type
Date: Fri, 5 Sep 2003 09:15:18 +0100
Message-ID: <200309050915.18531.dev@archonet.com> (raw)
In-Reply-To: <000c01c37137$a6e87ce0$7502a8c0@hdsc.com>
References: <000c01c37137$a6e87ce0$7502a8c0@hdsc.com>
On Tuesday 02 September 2003 10:50, Senthil Kumar S wrote:
> Dear Friends,
>
> Using Postgres 7.3.4 over the linux server 7.3.
>
> Is it possible to alter/change the data type of a existing table's column,
> with out dropping and recreating a column of same name.
>
> Thanks for ur knowledge sharing.
If you mean changing a varchar to a date or int4 to text, then no. If you want
to change the size of a varchar field, people seem to have done that in the
past (check the archives for details).
Otherwise, you'll have to wrap the drop/recreate in a transaction along with
whatever supporting updates you need.
--
Richard Huxton
Archonet Ltd
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To: pgsql-sql@postgresql.org
Cc: dev@archonet.com, ssakkaravel@ivesia.com
Subject: Re: Change column data type
In-Reply-To: <200309050915.18531.dev@archonet.com>
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