In-Reply-To: <467696D7.2090703@terra.com.br>
References: <467696D7.2090703@terra.com.br>
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From: Michael Glaesemann <grzm@seespotcode.net>
Subject: Re: [SQL] Setting variable
Date: Mon, 18 Jun 2007 09:43:55 -0500
To: Ranieri Mazili <ranieri.oliveira@terra.com.br>


On Jun 18, 2007, at 9:29 , Ranieri Mazili wrote:

> CREATE OR REPLACE FUNCTION lost_hours_temp(date)
> RETURNS text AS
> $BODY$
> DECLARE
>    START_DATE date;
>    END_DATE date;
>    QUERY text;
> BEGIN
>    START_DATE := $1;
>    END_DATE := START_DATE - interval '3 year';
>
> The last line (END_DATE := START_DATE - interval '3 year';)  
> generate the following error:
>
> ERROR: operator is not unique: "unknown" / "unknown"
> SQL state: 42725
> Hint: Could not choose a best candidate operator. You may need to  
> add explicit type casts.
> Context: PL/pgSQL function "lost_hours_temp" line 10 at assignment

Note that the error is at line 10. You've only shown lines 1 through  
7 of the function body, so you haven't actually shown us where the  
error is.

Michael Glaesemann
grzm seespotcode net