Re: Boolean to int
От | Arjen van der Meijden|Moderator P&W / Serverbeheer |
---|---|
Тема | Re: Boolean to int |
Дата | |
Msg-id | 000001c22436$5f87bb80$3ac15e91@acm обсуждение исходный текст |
Ответ на | Re: Boolean to int (Stephane Schildknecht <sschildknecht@aurora-linux.com>) |
Список | pgsql-sql |
Perhaps the 'create rule' is in the way, you could try something like: CASE WHEN document_online THEN 1ELSE 0 END, CASE WHEN document_valid 1ELSE 0 END But if that doesnt work, I'm out of options aswel. You could try the "instead query" separately to test whether the query itself is correct. Goodluck > -----Oorspronkelijk bericht----- > Van: Stephane Schildknecht [mailto:sschildknecht@aurora-linux.com] > Verzonden: vrijdag 5 juli 2002 15:39 > Aan: Arjen van der Meijden > CC: pgsql-sql@postgresql.org > Onderwerp: Re: [SQL] Boolean to int > > > Le jeu 04/07/2002 à 23:32, Arjen van der Meijden a écrit : > > How about this hint in the postgresql-manual: > > > > "Tip: Values of the boolean type cannot be cast > directly to other > > types (e.g., CAST (boolval AS integer) does not work). This can be > > accomplished using the CASE expression: CASE WHEN boolval > THEN 'value if > > true' ELSE 'value if false' END. See also Section 4.12. " > > > > For more information: > > http://www.postgresql.org/idocs/index.php?datatype-boolean.html > > and > > http://www.postgresql.org/idocs/index.php?functions-conditional.html > > I tried that : > > 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, > document_online, > document_valid, > CASE document_online WHEN TRUE THEN 1 > WHEN FALSE THEN 0 > END, > CASE document_valid WHEN TRUE THEN 1 > WHEN FALSE THEN 0 > END > FROM document; > > And, that doesn't work either... > > psql:cnambo_proc_stock.sql:76: ERROR: select rule's target > list has too many entries > > > > > -- > _Stéphane SCHILDKNECHT___________________________________ > | AurorA-SAS 69-71, Av. Pierre Grenier 92100 BOULOGNE | > | Tel : 01.58.17.03.20 Fax : 01.58.17.03.21 | > | mailto:sschildknecht@aurora-linux.com - ICQ : 142504394 | "Free > |Markets have taught that innovation is best when | > | ideas flow freely." Adam Smith | > |_________________________________________________________| > >
В списке pgsql-sql по дате отправления: