From: | Stephan Szabo <sszabo(at)megazone(dot)bigpanda(dot)com> |
---|---|
To: | Ken Johanson <pg-user(at)kensystem(dot)com> |
Cc: | pgsql-general(at)postgresql(dot)org |
Subject: | Re: SELECT CAST(123 AS char) -> 1 |
Date: | 2008-02-16 21:17:51 |
Message-ID: | 20080216131229.F99263@megazone.bigpanda.com |
Views: | Raw Message | Whole Thread | Download mbox | Resend email |
Thread: | |
Lists: | pgsql-general |
On Sat, 16 Feb 2008, Ken Johanson wrote:
> Tom Lane wrote:
>
> > Hm, good point, so really we ought to have a separate casting path for
> > numeric types to char(n). However, this section still doesn't offer
> > any support for the OP's desire to auto-size the result; it says
> > that you get an error if the result doesn't fit in the declared
> > length:
> >
> >> iv) Otherwise, an exception condition is raised: data exception-
> >> string data, right truncation.
> >
>
> I don't believe the size is being declared in the OP's (subject line)
> example: SELECT CAST(123 AS char)
The other part of Tom's quotes still apply:
If length is omitted then a length of 1 is implicit.
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