> -----Original Message----- > From: AI Rumman [mailto:rummandba@xxxxxxxxx] > Sent: Thursday, October 07, 2010 7:07 AM > To: pgsql-general General > Subject: 8.1 Table partition and getting error > > I am using POstgreql 8.1. > > I create table partition as follows: > alter table crm rename to crm_bak; > > CREATE TABLE crm > ( > crmid integer NOT NULL, > description text, > deleted integer NOT NULL DEFAULT 0 > ) > WITHOUT OIDS; > ALTER TABLE crm OWNER TO vcrm; > > > create table crm_deleted ( check ( deleted = 1 ) ) inherits > (crm); create table crm_active ( check ( deleted = 0 ) ) > inherits (crm); > > > create index crm_deleted_idx on crm_active(deleted); analyze > crm_active; > > CREATE OR REPLACE FUNCTION crm_insert_p() RETURNS TRIGGER AS $$ BEGIN > IF ( NEW.deleted = 0 ) THEN > INSERT INTO crm_active VALUES (NEW.*); > ELSE > INSERT INTO crm_deleted VALUES (NEW.*); > END IF; > RETURN NULL; > END; > $$ > LANGUAGE plpgsql; > > CREATE TRIGGER crm_insert_t > BEFORE INSERT ON crm > FOR EACH ROW EXECUTE PROCEDURE crm_insert_p(); > > > CREATE OR REPLACE FUNCTION crm_update_deleted_p() RETURNS > TRIGGER AS $$ > BEGIN > IF (NEW.deleted = 1) THEN > INSERT INTO crm_deleted VALUES (NEW.*); > DELETE FROM crm_active WHERE crmid = NEW.crmid; > ELSE > RETURN (NEW.*); > END IF; > END; > $$ > LANGUAGE plpgsql; > > > CREATE TRIGGER crm_update_t > BEFORE UPDATE ON crm > FOR EACH ROW EXECUTE PROCEDURE crm_update_deleted_p(); > > INSERT INTO crm > SELECT * FROM crm_bak; > > select count(*) from crm; > > select count(*) from crm_active; > > select count(*) from crm_deleted; > > set constraint_exclusion = on; > > > ---------------------------------------------- > It works fine. > But when I want to use the following sql, I get error: > update crm set deleted = 1 where crmid = 3; > ERROR: new row for relation "crm_active" violates check > constraint "crm_active_deleted_check" > > Any idea please. > > Change your on UPDATE trigger function to: CREATE OR REPLACE FUNCTION crm_update_deleted_p() RETURNS TRIGGER AS $$ BEGIN IF (NEW.deleted = 1) THEN INSERT INTO crm_deleted VALUES (NEW.*); DELETE FROM crm_active WHERE crmid = NEW.crmid; RETURN NULL; -- so that that trigger doesn't proceed with UPDATE on crm_active table ELSE RETURN (NEW.*); END IF; END; $$ LANGUAGE plpgsql; Regards, Igor Neyman -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
