| DROP TABLE mdt; | |
| CREATE TABLE mdt ( | |
| id int4, | |
| idesc text, | |
| moddate timestamp DEFAULT CURRENT_TIMESTAMP NOT NULL | |
| ); | |
| CREATE TRIGGER mdt_moddatetime | |
| BEFORE UPDATE ON mdt | |
| FOR EACH ROW | |
| EXECUTE PROCEDURE moddatetime (moddate); | |
| INSERT INTO mdt VALUES (1, 'first'); | |
| INSERT INTO mdt VALUES (2, 'second'); | |
| INSERT INTO mdt VALUES (3, 'third'); | |
| SELECT * FROM mdt; | |
| UPDATE mdt SET id = 4 | |
| WHERE id = 1; | |
| UPDATE mdt SET id = 5 | |
| WHERE id = 2; | |
| UPDATE mdt SET id = 6 | |
| WHERE id = 3; | |
| SELECT * FROM mdt; | |