After Insert or Update Trigger Issues!

Hi guys,

I cannot get AFTER INSERT (or UPDATE for that matter) triggers to work.
The same code works perfectly fine for BEFORE triggers.

I am almost ready to think that this is a bug. Just want to run it by
you, guys. OK, here it is:

1. MY FUNCTIONS

CREATE OR REPLACE FUNCTION insert_stamp() RETURNS TRIGGER AS
$audit_insert$
BEGIN
NEW.created_ts := 'now';
NEW.updated_ts := 'now';
RETURN NEW;
END;
$audit_insert$ LANGUAGE plpgsql;

CREATE OR REPLACE FUNCTION update_stamp() RETURNS TRIGGER AS
$audit_update$
BEGIN
NEW.updated_ts := 'now';
RETURN NEW;
END;
$audit_update$ LANGUAGE plpgsql;

2. MY TABLE

CREATE TABLE country (
country_id INT4 PRIMARY KEY,
country_name TEXT NOT NULL CONSTRAINT country_name_uq UNIQUE,
country_iso_name TEXT NOT NULL CONSTRAINT country_iso_name_uq UNIQUE,
list_rank INT4 NOT NULL CONSTRAINT country_list_rank_uq UNIQUE,
version INT4 NOT NULL,
created_ts TIMESTAMP,
updated_ts TIMESTAMP
);

CREATE UNIQUE INDEX upper_country_name_idx ON country
(UPPER(country_name));
CREATE UNIQUE INDEX upper_country_iso_name_idx ON country
(UPPER(country_iso_name));

CREATE TRIGGER insert_stamp AFTER INSERT ON country
FOR EACH ROW EXECUTE PROCEDURE insert_stamp();

CREATE TRIGGER update_stamp AFTER UPDATE ON country
FOR EACH ROW EXECUTE PROCEDURE update_stamp();

(Please keep in mind that if I switch to BEFORE (vs.AFTER) - EVERYTHING
WORKS!!!)

3. MY RESULTS

hibertest=# \d country
Table "public.country"
Column | Type | Modifiers
------------------+-----------------------------+-----------
country_id | integer | not null
country_name | text | not null
country_iso_name | text | not null
list_rank | integer | not null
version | integer | not null
created_ts | timestamp without time zone |
updated_ts | timestamp without time zone |
Indexes:
"country_pkey" PRIMARY KEY, btree (country_id)
"country_iso_name_uq" UNIQUE, btree (country_iso_name)
"country_list_rank_uq" UNIQUE, btree (list_rank)
"country_name_uq" UNIQUE, btree (country_name)
"upper_country_iso_name_idx" UNIQUE, btree (upper(country_iso_name))
"upper_country_name_idx" UNIQUE, btree (upper(country_name))
Triggers:
insert_stamp AFTER INSERT ON country FOR EACH ROW EXECUTE PROCEDURE
insert_stamp()
update_stamp AFTER UPDATE ON country FOR EACH ROW EXECUTE PROCEDURE
update_stamp()

hibertest=# insert into country values (10, 'USA', 'US', 1, 1);
INSERT 3538132 1
hibertest=# select * from country;
  country_id | country_name | country_iso_name | list_rank | version |  
created_ts | updated_ts
------------+--------------+------------------+-----------+--------- 
+------------+------------
          10 | USA          | US               |         1 |       1 |    
          |
(1 row)

Does anyone know why this may be the case???

Thank you very much!

Kyrill Alyoshin