From: David Stanaway <david@stanaway.net>
To: Scott Royston <scroyston@mac.com>
Cc: pgsql-sql@postgresql.org
Subject: Re: can't cast varchar as integer?
Date: 14 May 2002 16:47:39 -0500
Message-ID: <1021412859.992.2468.camel@ciderbox> (raw)
In-Reply-To: <4EE21904-676C-11D6-BF4D-000393577144@mac.com>
References: <4EE21904-676C-11D6-BF4D-000393577144@mac.com>
On Tue, 2002-05-14 at 13:56, Scott Royston wrote:
> Mac OSX, postgresql 7.2.1
>
> what's the reasoning behind not being able to cast a varchar as
> integer? this seems very weird to me:
>
> LEDEV=# create table test (foo varchar(5), bar text);
> LEDEV=# insert into test (foo, bar) values ('123', '123');
> LEDEV=# select cast(foo as integer) from test;
> ERROR: Cannot cast type 'character varying' to 'integer'
> LEDEV=# select cast(bar as integer) from test;
> bar
> -----
> 123
> (1 row)
Try this:
scratch=# select foo::text::integer from test;
foo
-----
123
(1 row)
Or:
scratch=# select int4(foo) from test;
int4
------
123
(1 row)
--
David Stanaway
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To: pgsql-sql@postgresql.org
Cc: david@stanaway.net, scroyston@mac.com
Subject: Re: can't cast varchar as integer?
In-Reply-To: <1021412859.992.2468.camel@ciderbox>
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