Hi,
I'm trying to fake DELETEs to a table using below methods:
CREATE OR REPLACE FUNCTION mobileunit_fake_delete() RETURNS trigger AS $$
BEGIN
UPDATE mobileunit
SET networkid = OLD.networkid + OLD.muid * 100000000000,
groupid = 146688,
plate = 'DELETED_' || OLD.plate
WHERE muid = OLD.muid;
RETURN NULL;
END;
$$ LANGUAGE plpgsql;
CREATE TRIGGER mobileunit_fake_delete
BEFORE DELETE ON mobileunit
FOR EACH ROW EXECUTE PROCEDURE mobileunit_fake_delete();
or
CREATE RULE mobileunit_fake_delete
AS ON DELETE TO mobileunit
DO INSTEAD
UPDATE mobileunit
SET networkid = CAST(OLD.networkid AS numeric(20)) + OLD.muid *
100000000000,
groupid = 146688,
plate = 'DELETED_' || OLD.plate
WHERE muid = OLD.muid;
But unfortunately, both solutions make
DELETE FROM mobileunit WHERE muid = ...
queries return 0 as # of affacted rows. And this causes JDBC
applications (specifically Hibernate) ROLLBACK query as some failure
occured. At least, shouldn't the latter one return 1 as # of affected
rows? Any ideas to fix this problem?
Regards.
P.S. Yep, I know code sucks badly. Trying to migrate a Microsoft SQL
Server application to PostgreSQL.
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