setting

src/trigger.sql

@@ -35,11 +35,10 @@ CREATE function insert_old_inventory() RETURNS trigger AS $insert_old_inventory$
     END;
 $insert_old_inventory$ LANGUAGE plpgsql;
 
-CREATE trigger if not exists insert_old_inventory AFTER UPDATE ON inventory
-    FOR EACH ROW EXECUTE FUNCTION insert_old_inventory();
+CREATE trigger insert_old_inventory AFTER UPDATE ON inventory FOR EACH ROW EXECUTE FUNCTION insert_old_inventory();
 
 ---Test
 update inventory set store_id =2 where inventory_id = 1;
 
-select * from inventory i2 where inventory_id = 2    
-select * from registro_inventory 
\ No newline at end of file
+select * from inventory i2 where inventory_id = 2;
+select * from registro_inventory;
\ No newline at end of file