| From: | Ron Johnson <ron(dot)l(dot)johnson(at)cox(dot)net> |
|---|---|
| To: | PgSQL General ML <pgsql-general(at)postgresql(dot)org> |
| Subject: | Re: <no subject> |
| Date: | 2003-10-01 10:37:25 |
| Message-ID: | 1065004645.22042.177.camel@haggis |
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| Thread: | |
| Lists: | pgsql-general |
On Wed, 2003-10-01 at 04:57, Daniel Schuchardt wrote:
> Hi @ all,
>
> I think thats a bug:
>
> SELECT '#' || '#'
>
> will work but
>
> SELECT '#' || CAST(NULL AS VARCHAR)
>
> will return only empty rows.
> My Query looks like this : SELECT field1 || field2 FROM ...
> If field2 ISNULL then everything is null. CAST does not help.
You want to use COALESCE.
--
-----------------------------------------------------------------
Ron Johnson, Jr. ron(dot)l(dot)johnson(at)cox(dot)net
Jefferson, LA USA
"Our computers and their computers are the same color. The
conversion should be no problem!"
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