Hello, I am using some code since postgres 8 and testing it on postgresql 9. Here are the informations about the packages and system used:
# lsb_release -a No LSB modules are available. Distributor ID: Debian Description: Debian GNU/Linux unstable (sid) Release: unstable Codename: sid # dpkg -l | grep postgres ii postgresql-9.0 9.0.1-1 object-relational SQL database, version 9.0 server [...] ii postgresql-plpython-9.0 9.0.1-1 PL/Python procedural language for PostgreSQL 9.0 If I create a database using the following code: -- ======================== CREATE LANGUAGE plpythonu ; CREATE FUNCTION wrong() RETURNS trigger AS $wrong$ from mx import DateTime TD['new']['modif_time'] = DateTime.now() return 'MODIFY' $wrong$ LANGUAGE plpythonu; CREATE TABLE pb ( a TEXT, modif_time TIMESTAMP(0) WITHOUT TIME ZONE ) ; CREATE TRIGGER wrong BEFORE UPDATE ON pb FOR EACH ROW EXECUTE PROCEDURE wrong() ; -- ======================== The following code -- ======================== INSERT INTO pb VALUES ( 'a', now() ) ; SELECT * FROM pb ; UPDATE pb SET a = 'b' ; SELECT * FROM pb ; -- ======================== produces this result: #======================== INSERT 0 1 a | modif_time ---+--------------------- a | 2010-10-10 18:30:30 (1 ligne) UPDATE 1 a | modif_time ---+------------------------ b | 2010-10-10 18:30:29.74 (1 ligne) #======================== notice the ".74" and the fact that in this example the modif_time of the modified tuple is earlier than the preceding one! Best regards Joël -- Sent via pgsql-bugs mailing list (pgsql-bugs@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-bugs
