From: Tom Lane <tgl@sss.pgh.pa.us>
To: Luke Pascoe <luke.p@kmg.co.nz>
Cc: pgsql-sql@postgresql.org
Subject: Re: CAST from VARCHAR to INT
Date: Fri, 24 Jan 2003 01:01:29 -0500
Message-ID: <10754.1043388089@sss.pgh.pa.us> (raw)
In-Reply-To: <01df01c2c354$2bac5a60$3200000a@K2>
References: <01df01c2c354$2bac5a60$3200000a@K2>
"Luke Pascoe" <luke.p@kmg.co.nz> writes:
> Now I'm trying to correct my mistake, I've created a new table and I'm
> trying to INSERT INTO...SELECT the data into it, but it's complaining that
> it can't stick a VARCHAR into an INT. All the values in the column are valid
> integers (the foreign key sees to that) but even a CAST won't do it.
I think you need to cast via TEXT.
regression=> select 'z'::varchar::int;
ERROR: Cannot cast type character varying to integer
regression=> select 'z'::varchar::text::int;
ERROR: pg_atoi: error in "z": can't parse "z"
regression=> select '42'::varchar::text::int;
int4
------
42
(1 row)
regards, tom lane
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To: pgsql-sql@postgresql.org
Cc: tgl@sss.pgh.pa.us, luke.p@kmg.co.nz
Subject: Re: CAST from VARCHAR to INT
In-Reply-To: <10754.1043388089@sss.pgh.pa.us>
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