Re: create OR REPLACE rule bug

Forget that, is seems as a EMS PostgreSQL Manager bug (no problem creating the rule when executed from the pgAdmin III Query tool)

However, the rule does not work as expected (but I have been warned, see http://archives.postgresql.org/pgsql-general/2005-10/msg01902.php)

insert into parttest.mastertab (id, datecol)
values (nextval('mastertab_id_seq'), '20050101');

insert into parttest.mastertab (id, datecol)
values (nextval('mastertab_id_seq'), '20050201');

SELECT p.relname, m.id, m.datecol
FROM mastertab m, pg_class p
WHERE m.tableoid = p.oid
ORDER BY id;

relname|id|datecol
----------------------------
mastertab_jan05|1|2005-01-01
mastertab_feb05|2|2005-02-01

update mastertab set datecol = '20050228' where id = 1;

SELECT p.relname, m.id, m.datecol
FROM mastertab m, pg_class p
WHERE m.tableoid = p.oid
ORDER BY id;

relname|id|datecol
----------------------------
mastertab_feb05|2|2005-02-01

(row with id 1 was deleted but not re-inserted)

/Mikael

-----Original Message-----
From: Mikael Carneholm
Sent: den 5 november 2005 23:05
To: 'pgsql-bugs(at)postgresql(dot)org'
Subject: create OR REPLACE rule bug

I believe this is a bug:

-- OR REPLACE present
create or replace rule "mastertab_jan05_update" as
on update to mastertab where
(NEW.datecol < '20050101' or NEW.datecol >= '20050201')
and
(OLD.datecol >= '20050101' and OLD.datecol < '20050201')
do instead (
-- multiple commands
delete from mastertab_jan05 where id = OLD.id;
insert into mastertab (id, datecol) values (OLD.id, NEW.datecol);
);

=> ERROR: syntax error at end of input at character 255

-- OR REPLACE not present
create rule "mastertab_jan05_update" as
on update to mastertab where
(NEW.datecol < '20050101' or NEW.datecol >= '20050201')
and
(OLD.datecol >= '20050101' and OLD.datecol < '20050201')
do instead (
-- multiple commands
delete from mastertab_jan05 where id = OLD.id;
insert into mastertab (id, datecol) values (OLD.id, NEW.datecol);
);

=> Query OK, 0 rows affected (0,00 sec)

-- OR REPLACE present
create or replace rule "mastertab_jan05_update" as
on update to mastertab where
(NEW.datecol < '20050101' or NEW.datecol >= '20050201')
and
(OLD.datecol >= '20050101' and OLD.datecol < '20050201')
do instead (
-- single command, no semicolon
delete from mastertab_jan05 where id = OLD.id
);

=> Query OK, 0 rows affected (0,00 sec)

-- OR REPLACE present
create or replace rule "mastertab_jan05_update" as
on update to mastertab where
(NEW.datecol < '20050101' or NEW.datecol >= '20050201')
and
(OLD.datecol >= '20050101' and OLD.datecol < '20050201')
do instead (
-- single command, semicolon present
delete from mastertab_jan05 where id = OLD.id;
);

=> ERROR: syntax error at end of input at character 255

Ie, the "OR REPLACE" token is broken in that is doesn't work with multiple commands (semicolons?)

/Mikael