Subject: Re: Determine length of numeric field
From: Tony Capobianco <tcapobianco@prospectiv.com>
To: pgsql-sql@postgresql.org
In-Reply-To: <AANLkTinxqjfVzcv-=8m_tzLjvCpOah7N9UuBgZauMcO0@mail.gmail.com>
References: <1297802915.1703.13.camel@tony1.localdomain>
	<AANLkTinxqjfVzcv-=8m_tzLjvCpOah7N9UuBgZauMcO0@mail.gmail.com>
Content-Type: text/plain; charset="UTF-8"
Date: Tue, 15 Feb 2011 16:09:49 -0500
Message-ID: <1297804189.1703.15.camel@tony1.localdomain>
Mime-Version: 1.0
Content-Transfer-Encoding: 7bit

Pavel,
That's perfect!
Thanks.
Tony

On Tue, 2011-02-15 at 22:04 +0100, Pavel Stehule wrote:
> Hello
> 
> probably you have to use a explicit cast
> 
> postgres=# select length(10::numeric::text);
>  length
> --------
>       2
> (1 row)
> 
> Regards
> 
> Pavel Stehule
> 
> 2011/2/15 Tony Capobianco <tcapobianco@prospectiv.com>:
> > I'm altering datatypes in several tables from numeric to integer.  In
> > doing so, I get the following error:
> >
> > dw=# \d uniq_hits
> >    Table "support.uniq_hits"
> >   Column   |  Type   | Modifiers
> > ------------+---------+-----------
> >  sourceid   | numeric |
> >  hitdate    | date    |
> >  total      | numeric |
> >  hitdate_id | integer |
> > Indexes:
> >    "uniq_hits_hitdateid_idx" btree (hitdate_id), tablespace
> > "support_idx"
> > Tablespace: "support"
> >
> > esave_dw=# alter table uniq_hits alter sourceid type int;
> > ERROR:  integer out of range
> >
> > Sourceid should not be more than 5 digits long.  I'm able to perform
> > this query on Oracle and would like something similar on postgres 8.4:
> >
> > delete from uniq_hits where sourceid in (select sourceid from uniq_hits
> > where length(sourceid) > 5);
> >
> > I haven't had much luck with the length or char_length functions on
> > postgres.
> >
> > Thanks.
> > Tony
> >
> >
> > --
> > Sent via pgsql-sql mailing list (pgsql-sql@postgresql.org)
> > To make changes to your subscription:
> > http://www.postgresql.org/mailpref/pgsql-sql
> >
>