Re: doesn't recognize "!=-" (not equal to a negative value) - Mailing list pgsql-general

From David Fetter
Subject Re: doesn't recognize "!=-" (not equal to a negative value)
Date
Msg-id 20060712144841.GB6212@fetter.org
Whole thread Raw
In response to Re: doesn't recognize "!=-" (not equal to a negative value)  (Paul Tilles <Paul.Tilles@noaa.gov>)
List pgsql-general
On Tue, Jul 11, 2006 at 04:26:41PM -0400, Paul Tilles wrote:
> Yes.  That works.  I think that the parser should work properly either way.

You're mistaken.  PostgreSQL by design makes it possible for you to
define a custom operator like !=- and use it.

>
> Paul
>
> Bruce Momjian wrote:
> >Paul Tilles wrote:
> >
> >>Version postgres 7.4.7:
> >>
> >>Following sql
> >>
> >>UPDATE tablename SET value = 0.0 where value!=-9.4;
> >>
> >>results in the error message
> >>
> >>ERROR:  operator does not exist: smallint !=- integer
> >>HINT:  No operator matches the given name and argument type(s). You may
> >>need to add explicit type casts.
> >>
> >
> >Have you tried?
> >
> >value != -9.4
> >
> >---------------------------------------------------------------------------
> >
> >
> >>Seems that postgres has a problem parsing a "not equal negative value".
> >>
> >>Anybody know if this is fixed in later versions?
> >>
> >>Paul Tilles
> >>
> >>
> >>---------------------------(end of broadcast)---------------------------
> >>TIP 4: Have you searched our list archives?
> >>
> >>               http://archives.postgresql.org
> >>
> >
> >
>
> ---------------------------(end of broadcast)---------------------------
> TIP 5: don't forget to increase your free space map settings

--
David Fetter <david@fetter.org> http://fetter.org/
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