From: Stephane Schildknecht <sschildknecht@aurora-linux.com>
To: pgsql-sql@postgresql.org
Subject: Boolean to int
Date: 04 Jul 2002 19:26:35 +0200
Message-ID: <1025803595.20819.239.camel@fukse> (raw)
Hi,
I'd like to get 1 or 0 from a select on a boolean field.
How could I do ?
I tried the following rule, which I can't insert :
CREATE FUNCTION bool_to_int( boolean ) RETURNS integer AS '
DECLARE
my_bool ALIAS FOR $1 ;
BEGIN
-- Retourne 1 si true, 0 si false
IF my_bool IS FALSE THEN
RETURN 0 ;
ELSIF my_bool IS TRUE THEN
RETURN 1 ;
ELSE RETURN -1 ;
END IF ;
END ;
' LANGUAGE 'plpgsql';
CREATE RULE boolean_return AS ON SELECT TO DOCUMENT DO INSTEAD
SELECT
document_id,
workflow_id,
type_document_id,
image_id,
theme_id,
document_version,
document_surtitre,
document_titre,
document_chapeau,
document_synthese,
document_corps,
document_pdf,
document_date_creation,
document_mot_clef,
(bool_to_int(document_online)) as document_online,
bool_to_int(document_valid) as document_valid FROM document;
psql:cnambo_proc_stock.sql:69: ERROR: select rule's target entry 15
has different type from attribute document_online
Who could help me ?
S@S
--
_Stéphane SCHILDKNECHT___________________________________
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To: pgsql-sql@postgresql.org
Cc: sschildknecht@aurora-linux.com
Subject: Re: Boolean to int
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