| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | "Marc G(dot) Fournier" <scrappy(at)postgresql(dot)org> |
| Cc: | pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: ALTER TABLE ( smallinto -> boolean ) ... |
| Date: | 2005-09-01 20:56:45 |
| Message-ID: | 6399.1125608205@sss.pgh.pa.us |
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| Lists: | pgsql-hackers pgsql-sql |
"Marc G. Fournier" <scrappy(at)postgresql(dot)org> writes:
> On Mon, 29 Aug 2005, Tom Lane wrote:
>> No, because there's no built-in cast from smallint to bool.
> 'k, I just took a read through the "CREATE CAST" man page, and don't think
> I can use that for this,
Sure you can. Make a SQL or PLPGSQL function that does the conversion
you want and then create a cast using it.
regards, tom lane
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