rules.out

--
-- RULES
-- From Jan's original setup_ruletest.sql and run_ruletest.sql
-- - thomas 1998-09-13
--
--
-- Tables and rules for the view test
--
create table rtest_t1 (a int4, b int4);
create table rtest_t2 (a int4, b int4);
create table rtest_t3 (a int4, b int4);
create view rtest_v1 as select * from rtest_t1;
create rule rtest_v1_ins as on insert to rtest_v1 do instead
	insert into rtest_t1 values (new.a, new.b);
create rule rtest_v1_upd as on update to rtest_v1 do instead
	update rtest_t1 set a = new.a, b = new.b
	where a = old.a;
create rule rtest_v1_del as on delete to rtest_v1 do instead
	delete from rtest_t1 where a = old.a;
--
-- Tables and rules for the constraint update/delete test
--
-- Note:
-- 	Now that we have multiple action rule support, we check
-- 	both possible syntaxes to define them (The last action
--  can but must not have a semicolon at the end).
--
create table rtest_system (sysname text, sysdesc text);
create table rtest_interface (sysname text, ifname text);
create table rtest_person (pname text, pdesc text);
create table rtest_admin (pname text, sysname text);
create rule rtest_sys_upd as on update to rtest_system do (
	update rtest_interface set sysname = new.sysname 
		where sysname = old.sysname;
	update rtest_admin set sysname = new.sysname 
		where sysname = old.sysname
	);
create rule rtest_sys_del as on delete to rtest_system do (
	delete from rtest_interface where sysname = old.sysname;
	delete from rtest_admin where sysname = old.sysname;
	);
create rule rtest_pers_upd as on update to rtest_person do 
	update rtest_admin set pname = new.pname where pname = old.pname;
create rule rtest_pers_del as on delete to rtest_person do 
	delete from rtest_admin where pname = old.pname;
--
-- Tables and rules for the logging test
--
create table rtest_emp (ename char(20), salary money);
create table rtest_emplog (ename char(20), who name, action char(10), newsal money, oldsal money);
create table rtest_empmass (ename char(20), salary money);
create rule rtest_emp_ins as on insert to rtest_emp do
	insert into rtest_emplog values (new.ename, current_user,
			'hired', new.salary, '0.00');
create rule rtest_emp_upd as on update to rtest_emp where new.salary != old.salary do
	insert into rtest_emplog values (new.ename, current_user,
			'honored', new.salary, old.salary);
create rule rtest_emp_del as on delete to rtest_emp do
	insert into rtest_emplog values (old.ename, current_user,
			'fired', '0.00', old.salary);
--
-- Tables and rules for the multiple cascaded qualified instead
-- rule test 
--
create table rtest_t4 (a int4, b text);
create table rtest_t5 (a int4, b text);
create table rtest_t6 (a int4, b text);
create table rtest_t7 (a int4, b text);
create table rtest_t8 (a int4, b text);
create table rtest_t9 (a int4, b text);
create rule rtest_t4_ins1 as on insert to rtest_t4
		where new.a >= 10 and new.a < 20 do instead
	insert into rtest_t5 values (new.a, new.b);
create rule rtest_t4_ins2 as on insert to rtest_t4
		where new.a >= 20 and new.a < 30 do
	insert into rtest_t6 values (new.a, new.b);
create rule rtest_t5_ins as on insert to rtest_t5
		where new.a > 15 do
	insert into rtest_t7 values (new.a, new.b);
create rule rtest_t6_ins as on insert to rtest_t6
		where new.a > 25 do instead
	insert into rtest_t8 values (new.a, new.b);
--
-- Tables and rules for the rule fire order test
--
-- As of PG 7.3, the rules should fire in order by name, regardless
-- of INSTEAD attributes or creation order.
--
create table rtest_order1 (a int4);
create table rtest_order2 (a int4, b int4, c text);
create sequence rtest_seq;
create rule rtest_order_r3 as on insert to rtest_order1 do instead
	insert into rtest_order2 values (new.a, nextval('rtest_seq'),
		'rule 3 - this should run 3rd');
create rule rtest_order_r4 as on insert to rtest_order1
		where a < 100 do instead
	insert into rtest_order2 values (new.a, nextval('rtest_seq'),
		'rule 4 - this should run 4th');
create rule rtest_order_r2 as on insert to rtest_order1 do
	insert into rtest_order2 values (new.a, nextval('rtest_seq'),
		'rule 2 - this should run 2nd');
create rule rtest_order_r1 as on insert to rtest_order1 do instead
	insert into rtest_order2 values (new.a, nextval('rtest_seq'),
		'rule 1 - this should run 1st');
--
-- Tables and rules for the instead nothing test
--
create table rtest_nothn1 (a int4, b text);
create table rtest_nothn2 (a int4, b text);
create table rtest_nothn3 (a int4, b text);
create table rtest_nothn4 (a int4, b text);
create rule rtest_nothn_r1 as on insert to rtest_nothn1
	where new.a >= 10 and new.a < 20 do instead nothing;
create rule rtest_nothn_r2 as on insert to rtest_nothn1
	where new.a >= 30 and new.a < 40 do instead nothing;
create rule rtest_nothn_r3 as on insert to rtest_nothn2
	where new.a >= 100 do instead
	insert into rtest_nothn3 values (new.a, new.b);
create rule rtest_nothn_r4 as on insert to rtest_nothn2
	do instead nothing;
--
-- Tests on a view that is select * of a table
-- and has insert/update/delete instead rules to
-- behave close like the real table.
--
--
-- We need test date later
--
insert into rtest_t2 values (1, 21);
insert into rtest_t2 values (2, 22);
insert into rtest_t2 values (3, 23);
insert into rtest_t3 values (1, 31);
insert into rtest_t3 values (2, 32);
insert into rtest_t3 values (3, 33);
insert into rtest_t3 values (4, 34);
insert into rtest_t3 values (5, 35);
-- insert values
insert into rtest_v1 values (1, 11);
insert into rtest_v1 values (2, 12);
select * from rtest_v1;
 a | b  
---+----
 1 | 11
 2 | 12
(2 rows)

-- delete with constant expression
delete from rtest_v1 where a = 1;
select * from rtest_v1;
 a | b  
---+----
 2 | 12
(1 row)

insert into rtest_v1 values (1, 11);
delete from rtest_v1 where b = 12;
select * from rtest_v1;
 a | b  
---+----
 1 | 11
(1 row)

insert into rtest_v1 values (2, 12);
insert into rtest_v1 values (2, 13);
select * from rtest_v1;
 a | b  
---+----
 1 | 11
 2 | 12
 2 | 13
(3 rows)

** Remember the delete rule on rtest_v1: It says
** DO INSTEAD DELETE FROM rtest_t1 WHERE a = old.a
** So this time both rows with a = 2 must get deleted
\p
** Remember the delete rule on rtest_v1: It says
** DO INSTEAD DELETE FROM rtest_t1 WHERE a = old.a
** So this time both rows with a = 2 must get deleted
\r
delete from rtest_v1 where b = 12;
select * from rtest_v1;
 a | b  
---+----
 1 | 11
(1 row)

delete from rtest_v1;
-- insert select
insert into rtest_v1 select * from rtest_t2;
select * from rtest_v1;
 a | b  
---+----
 1 | 21
 2 | 22
 3 | 23
(3 rows)

delete from rtest_v1;
-- same with swapped targetlist
insert into rtest_v1 (b, a) select b, a from rtest_t2;
select * from rtest_v1;
 a | b  
---+----
 1 | 21
 2 | 22
 3 | 23
(3 rows)

-- now with only one target attribute
insert into rtest_v1 (a) select a from rtest_t3;
select * from rtest_v1;
 a | b  
---+----
 1 | 21
 2 | 22
 3 | 23
 1 |   
 2 |   
 3 |   
 4 |   
 5 |   
(8 rows)

select * from rtest_v1 where b isnull;
 a | b 
---+---
 1 |  
 2 |  
 3 |  
 4 |  
 5 |  
(5 rows)

-- let attribute a differ (must be done on rtest_t1 - see above)
update rtest_t1 set a = a + 10 where b isnull;
delete from rtest_v1 where b isnull;
select * from rtest_v1;
 a | b  
---+----
 1 | 21
 2 | 22
 3 | 23
(3 rows)

-- now updates with constant expression
update rtest_v1 set b = 42 where a = 2;
select * from rtest_v1;
 a | b  
---+----
 1 | 21
 3 | 23
 2 | 42
(3 rows)

update rtest_v1 set b = 99 where b = 42;
select * from rtest_v1;
 a | b  
---+----
 1 | 21
 3 | 23
 2 | 99
(3 rows)

update rtest_v1 set b = 88 where b < 50;
select * from rtest_v1;
 a | b  
---+----
 2 | 99
 1 | 88
 3 | 88
(3 rows)

delete from rtest_v1;
insert into rtest_v1 select rtest_t2.a, rtest_t3.b where rtest_t2.a = rtest_t3.a;
select * from rtest_v1;
 a | b  
---+----
 1 | 31
 2 | 32
 3 | 33
(3 rows)

-- updates in a mergejoin
update rtest_v1 set b = rtest_t2.b where a = rtest_t2.a;
select * from rtest_v1;
 a | b  
---+----
 1 | 21
 2 | 22
 3 | 23
(3 rows)

insert into rtest_v1 select * from rtest_t3;
select * from rtest_v1;
 a | b  
---+----
 1 | 21
 2 | 22
 3 | 23
 1 | 31
 2 | 32
 3 | 33
 4 | 34
 5 | 35
(8 rows)

update rtest_t1 set a = a + 10 where b > 30;
select * from rtest_v1;
 a  | b  
----+----
  1 | 21
  2 | 22
  3 | 23
 11 | 31
 12 | 32
 13 | 33
 14 | 34
 15 | 35
(8 rows)

update rtest_v1 set a = rtest_t3.a + 20 where b = rtest_t3.b;
select * from rtest_v1;
 a  | b  
----+----
  1 | 21
  2 | 22
  3 | 23
 21 | 31
 22 | 32
 23 | 33
 24 | 34
 25 | 35
(8 rows)

--
-- Test for constraint updates/deletes
--
insert into rtest_system values ('orion', 'Linux Jan Wieck');
insert into rtest_system values ('notjw', 'WinNT Jan Wieck (notebook)');
insert into rtest_system values ('neptun', 'Fileserver');
insert into rtest_interface values ('orion', 'eth0');
insert into rtest_interface values ('orion', 'eth1');
insert into rtest_interface values ('notjw', 'eth0');
insert into rtest_interface values ('neptun', 'eth0');
insert into rtest_person values ('jw', 'Jan Wieck');
insert into rtest_person values ('bm', 'Bruce Momjian');
insert into rtest_admin values ('jw', 'orion');
insert into rtest_admin values ('jw', 'notjw');
insert into rtest_admin values ('bm', 'neptun');
update rtest_system set sysname = 'pluto' where sysname = 'neptun';
select * from rtest_interface;
 sysname | ifname 
---------+--------
 orion   | eth0
 orion   | eth1
 notjw   | eth0
 pluto   | eth0
(4 rows)

select * from rtest_admin;
 pname | sysname 
-------+---------
 jw    | orion
 jw    | notjw
 bm    | pluto
(3 rows)

update rtest_person set pname = 'jwieck' where pdesc = 'Jan Wieck';
-- Note: use ORDER BY here to ensure consistent output across all systems.
-- The above UPDATE affects two rows with equal keys, so they could be
-- updated in either order depending on the whim of the local qsort().
select * from rtest_admin order by pname, sysname;
 pname  | sysname 
--------+---------
 bm     | pluto
 jwieck | notjw
 jwieck | orion
(3 rows)

delete from rtest_system where sysname = 'orion';
select * from rtest_interface;
 sysname | ifname 
---------+--------
 notjw   | eth0
 pluto   | eth0
(2 rows)

select * from rtest_admin;
 pname  | sysname 
--------+---------
 bm     | pluto
 jwieck | notjw
(2 rows)

--
-- Rule qualification test
--
insert into rtest_emp values ('wiech', '5000.00');
insert into rtest_emp values ('gates', '80000.00');
update rtest_emp set ename = 'wiecx' where ename = 'wiech';
update rtest_emp set ename = 'wieck', salary = '6000.00' where ename = 'wiecx';
update rtest_emp set salary = '7000.00' where ename = 'wieck';
delete from rtest_emp where ename = 'gates';
select ename, who = current_user as "matches user", action, newsal, oldsal from rtest_emplog order by ename, action, newsal;
        ename         | matches user |   action   |   newsal   |   oldsal   
----------------------+--------------+------------+------------+------------
 gates                | t            | fired      |      $0.00 | $80,000.00
 gates                | t            | hired      | $80,000.00 |      $0.00
 wiech                | t            | hired      |  $5,000.00 |      $0.00
 wieck                | t            | honored    |  $6,000.00 |  $5,000.00
 wieck                | t            | honored    |  $7,000.00 |  $6,000.00
(5 rows)

insert into rtest_empmass values ('meyer', '4000.00');
insert into rtest_empmass values ('maier', '5000.00');
insert into rtest_empmass values ('mayr', '6000.00');
insert into rtest_emp select * from rtest_empmass;
select ename, who = current_user as "matches user", action, newsal, oldsal from rtest_emplog order by ename, action, newsal;
        ename         | matches user |   action   |   newsal   |   oldsal   
----------------------+--------------+------------+------------+------------
 gates                | t            | fired      |      $0.00 | $80,000.00
 gates                | t            | hired      | $80,000.00 |      $0.00
 maier                | t            | hired      |  $5,000.00 |      $0.00
 mayr                 | t            | hired      |  $6,000.00 |      $0.00
 meyer                | t            | hired      |  $4,000.00 |      $0.00
 wiech                | t            | hired      |  $5,000.00 |      $0.00
 wieck                | t            | honored    |  $6,000.00 |  $5,000.00
 wieck                | t            | honored    |  $7,000.00 |  $6,000.00
(8 rows)

update rtest_empmass set salary = salary + '1000.00';
update rtest_emp set salary = rtest_empmass.salary where ename = rtest_empmass.ename;
select ename, who = current_user as "matches user", action, newsal, oldsal from rtest_emplog order by ename, action, newsal;
        ename         | matches user |   action   |   newsal   |   oldsal   
----------------------+--------------+------------+------------+------------
 gates                | t            | fired      |      $0.00 | $80,000.00
 gates                | t            | hired      | $80,000.00 |      $0.00
 maier                | t            | hired      |  $5,000.00 |      $0.00
 maier                | t            | honored    |  $6,000.00 |  $5,000.00
 mayr                 | t            | hired      |  $6,000.00 |      $0.00
 mayr                 | t            | honored    |  $7,000.00 |  $6,000.00
 meyer                | t            | hired      |  $4,000.00 |      $0.00
 meyer                | t            | honored    |  $5,000.00 |  $4,000.00
 wiech                | t            | hired      |  $5,000.00 |      $0.00
 wieck                | t            | honored    |  $6,000.00 |  $5,000.00
 wieck                | t            | honored    |  $7,000.00 |  $6,000.00
(11 rows)

delete from rtest_emp where ename = rtest_empmass.ename;
select ename, who = current_user as "matches user", action, newsal, oldsal from rtest_emplog order by ename, action, newsal;
        ename         | matches user |   action   |   newsal   |   oldsal   
----------------------+--------------+------------+------------+------------
 gates                | t            | fired      |      $0.00 | $80,000.00
 gates                | t            | hired      | $80,000.00 |      $0.00
 maier                | t            | fired      |      $0.00 |  $6,000.00
 maier                | t            | hired      |  $5,000.00 |      $0.00
 maier                | t            | honored    |  $6,000.00 |  $5,000.00
 mayr                 | t            | fired      |      $0.00 |  $7,000.00
 mayr                 | t            | hired      |  $6,000.00 |      $0.00
 mayr                 | t            | honored    |  $7,000.00 |  $6,000.00
 meyer                | t            | fired      |      $0.00 |  $5,000.00
 meyer                | t            | hired      |  $4,000.00 |      $0.00
 meyer                | t            | honored    |  $5,000.00 |  $4,000.00
 wiech                | t            | hired      |  $5,000.00 |      $0.00
 wieck                | t            | honored    |  $6,000.00 |  $5,000.00
 wieck                | t            | honored    |  $7,000.00 |  $6,000.00
(14 rows)

--
-- Multiple cascaded qualified instead rule test
--
insert into rtest_t4 values (1, 'Record should go to rtest_t4');
insert into rtest_t4 values (2, 'Record should go to rtest_t4');
insert into rtest_t4 values (10, 'Record should go to rtest_t5');
insert into rtest_t4 values (15, 'Record should go to rtest_t5');
insert into rtest_t4 values (19, 'Record should go to rtest_t5 and t7');
insert into rtest_t4 values (20, 'Record should go to rtest_t4 and t6');
insert into rtest_t4 values (26, 'Record should go to rtest_t4 and t8');
insert into rtest_t4 values (28, 'Record should go to rtest_t4 and t8');
insert into rtest_t4 values (30, 'Record should go to rtest_t4');
insert into rtest_t4 values (40, 'Record should go to rtest_t4');
select * from rtest_t4;
 a  |                  b                  
----+-------------------------------------
  1 | Record should go to rtest_t4
  2 | Record should go to rtest_t4
 20 | Record should go to rtest_t4 and t6
 26 | Record should go to rtest_t4 and t8
 28 | Record should go to rtest_t4 and t8
 30 | Record should go to rtest_t4
 40 | Record should go to rtest_t4
(7 rows)

select * from rtest_t5;
 a  |                  b                  
----+-------------------------------------
 10 | Record should go to rtest_t5
 15 | Record should go to rtest_t5
 19 | Record should go to rtest_t5 and t7
(3 rows)

select * from rtest_t6;
 a  |                  b                  
----+-------------------------------------
 20 | Record should go to rtest_t4 and t6
(1 row)

select * from rtest_t7;
 a  |                  b                  
----+-------------------------------------
 19 | Record should go to rtest_t5 and t7
(1 row)

select * from rtest_t8;
 a  |                  b                  
----+-------------------------------------
 26 | Record should go to rtest_t4 and t8
 28 | Record should go to rtest_t4 and t8
(2 rows)

delete from rtest_t4;
delete from rtest_t5;
delete from rtest_t6;
delete from rtest_t7;
delete from rtest_t8;
insert into rtest_t9 values (1, 'Record should go to rtest_t4');
insert into rtest_t9 values (2, 'Record should go to rtest_t4');
insert into rtest_t9 values (10, 'Record should go to rtest_t5');
insert into rtest_t9 values (15, 'Record should go to rtest_t5');
insert into rtest_t9 values (19, 'Record should go to rtest_t5 and t7');
insert into rtest_t9 values (20, 'Record should go to rtest_t4 and t6');
insert into rtest_t9 values (26, 'Record should go to rtest_t4 and t8');
insert into rtest_t9 values (28, 'Record should go to rtest_t4 and t8');
insert into rtest_t9 values (30, 'Record should go to rtest_t4');
insert into rtest_t9 values (40, 'Record should go to rtest_t4');
insert into rtest_t4 select * from rtest_t9 where a < 20;
select * from rtest_t4;
 a |              b               
---+------------------------------
 1 | Record should go to rtest_t4
 2 | Record should go to rtest_t4
(2 rows)

select * from rtest_t5;
 a  |                  b                  
----+-------------------------------------
 10 | Record should go to rtest_t5
 15 | Record should go to rtest_t5
 19 | Record should go to rtest_t5 and t7
(3 rows)

select * from rtest_t6;
 a | b 
---+---
(0 rows)

select * from rtest_t7;
 a  |                  b                  
----+-------------------------------------
 19 | Record should go to rtest_t5 and t7
(1 row)

select * from rtest_t8;
 a | b 
---+---
(0 rows)

insert into rtest_t4 select * from rtest_t9 where b ~ 'and t8';
select * from rtest_t4;
 a  |                  b                  
----+-------------------------------------
  1 | Record should go to rtest_t4
  2 | Record should go to rtest_t4
 26 | Record should go to rtest_t4 and t8
 28 | Record should go to rtest_t4 and t8
(4 rows)

select * from rtest_t5;
 a  |                  b                  
----+-------------------------------------
 10 | Record should go to rtest_t5
 15 | Record should go to rtest_t5
 19 | Record should go to rtest_t5 and t7
(3 rows)

select * from rtest_t6;
 a | b 
---+---
(0 rows)

select * from rtest_t7;
 a  |                  b                  
----+-------------------------------------
 19 | Record should go to rtest_t5 and t7
(1 row)

select * from rtest_t8;
 a  |                  b                  
----+-------------------------------------
 26 | Record should go to rtest_t4 and t8
 28 | Record should go to rtest_t4 and t8
(2 rows)

insert into rtest_t4 select a + 1, b from rtest_t9 where a in (20, 30, 40);
select * from rtest_t4;
 a  |                  b                  
----+-------------------------------------
  1 | Record should go to rtest_t4
  2 | Record should go to rtest_t4
 26 | Record should go to rtest_t4 and t8
 28 | Record should go to rtest_t4 and t8
 21 | Record should go to rtest_t4 and t6
 31 | Record should go to rtest_t4
 41 | Record should go to rtest_t4
(7 rows)

select * from rtest_t5;
 a  |                  b                  
----+-------------------------------------
 10 | Record should go to rtest_t5
 15 | Record should go to rtest_t5
 19 | Record should go to rtest_t5 and t7
(3 rows)

select * from rtest_t6;
 a  |                  b                  
----+-------------------------------------
 21 | Record should go to rtest_t4 and t6
(1 row)

select * from rtest_t7;
 a  |                  b                  
----+-------------------------------------
 19 | Record should go to rtest_t5 and t7
(1 row)

select * from rtest_t8;
 a  |                  b                  
----+-------------------------------------
 26 | Record should go to rtest_t4 and t8
 28 | Record should go to rtest_t4 and t8
(2 rows)

--
-- Check that the ordering of rules fired is correct
--
insert into rtest_order1 values (1);
select * from rtest_order2;
 a | b |              c               
---+---+------------------------------
 1 | 1 | rule 1 - this should run 1st
 1 | 2 | rule 2 - this should run 2nd
 1 | 3 | rule 3 - this should run 3rd
 1 | 4 | rule 4 - this should run 4th
(4 rows)

--
-- Check if instead nothing w/without qualification works
--
insert into rtest_nothn1 values (1, 'want this');
insert into rtest_nothn1 values (2, 'want this');
insert into rtest_nothn1 values (10, 'don''t want this');
insert into rtest_nothn1 values (19, 'don''t want this');
insert into rtest_nothn1 values (20, 'want this');
insert into rtest_nothn1 values (29, 'want this');
insert into rtest_nothn1 values (30, 'don''t want this');
insert into rtest_nothn1 values (39, 'don''t want this');
insert into rtest_nothn1 values (40, 'want this');
insert into rtest_nothn1 values (50, 'want this');
insert into rtest_nothn1 values (60, 'want this');
select * from rtest_nothn1;
 a  |     b     
----+-----------
  1 | want this
  2 | want this
 20 | want this
 29 | want this
 40 | want this
 50 | want this
 60 | want this
(7 rows)

insert into rtest_nothn2 values (10, 'too small');
insert into rtest_nothn2 values (50, 'too small');
insert into rtest_nothn2 values (100, 'OK');
insert into rtest_nothn2 values (200, 'OK');
select * from rtest_nothn2;
 a | b 
---+---
(0 rows)

select * from rtest_nothn3;
  a  | b  
-----+----
 100 | OK
 200 | OK
(2 rows)

delete from rtest_nothn1;
delete from rtest_nothn2;
delete from rtest_nothn3;
insert into rtest_nothn4 values (1, 'want this');
insert into rtest_nothn4 values (2, 'want this');
insert into rtest_nothn4 values (10, 'don''t want this');
insert into rtest_nothn4 values (19, 'don''t want this');
insert into rtest_nothn4 values (20, 'want this');
insert into rtest_nothn4 values (29, 'want this');
insert into rtest_nothn4 values (30, 'don''t want this');
insert into rtest_nothn4 values (39, 'don''t want this');
insert into rtest_nothn4 values (40, 'want this');
insert into rtest_nothn4 values (50, 'want this');
insert into rtest_nothn4 values (60, 'want this');
insert into rtest_nothn1 select * from rtest_nothn4;
select * from rtest_nothn1;
 a  |     b     
----+-----------
  1 | want this
  2 | want this
 20 | want this
 29 | want this
 40 | want this
 50 | want this
 60 | want this
(7 rows)

delete from rtest_nothn4;
insert into rtest_nothn4 values (10, 'too small');
insert into rtest_nothn4 values (50, 'too small');
insert into rtest_nothn4 values (100, 'OK');
insert into rtest_nothn4 values (200, 'OK');
insert into rtest_nothn2 select * from rtest_nothn4;
select * from rtest_nothn2;
 a | b 
---+---
(0 rows)

select * from rtest_nothn3;
  a  | b  
-----+----
 100 | OK
 200 | OK
(2 rows)

create table rtest_view1 (a int4, b text, v bool);
create table rtest_view2 (a int4);
create table rtest_view3 (a int4, b text);
create table rtest_view4 (a int4, b text, c int4);
create view rtest_vview1 as select a, b from rtest_view1 X 
	where 0 < (select count(*) from rtest_view2 Y where Y.a = X.a);
create view rtest_vview2 as select a, b from rtest_view1 where v;
create view rtest_vview3 as select a, b from rtest_vview2 X
	where 0 < (select count(*) from rtest_view2 Y where Y.a = X.a);
create view rtest_vview4 as select X.a, X.b, count(Y.a) as refcount
	from rtest_view1 X, rtest_view2 Y
	where X.a = Y.a
	group by X.a, X.b;
create function rtest_viewfunc1(int4) returns int4 as
	'select count(*)::int4 from rtest_view2 where a = $1'
	language 'sql';
create view rtest_vview5 as select a, b, rtest_viewfunc1(a) as refcount
	from rtest_view1;
insert into rtest_view1 values (1, 'item 1', 't');
insert into rtest_view1 values (2, 'item 2', 't');
insert into rtest_view1 values (3, 'item 3', 't');
insert into rtest_view1 values (4, 'item 4', 'f');
insert into rtest_view1 values (5, 'item 5', 't');
insert into rtest_view1 values (6, 'item 6', 'f');
insert into rtest_view1 values (7, 'item 7', 't');
insert into rtest_view1 values (8, 'item 8', 't');
insert into rtest_view2 values (2);
insert into rtest_view2 values (2);
insert into rtest_view2 values (4);
insert into rtest_view2 values (5);
insert into rtest_view2 values (7);
insert into rtest_view2 values (7);
insert into rtest_view2 values (7);
insert into rtest_view2 values (7);
select * from rtest_vview1;
 a |   b    
---+--------
 2 | item 2
 4 | item 4
 5 | item 5
 7 | item 7
(4 rows)

select * from rtest_vview2;
 a |   b    
---+--------
 1 | item 1
 2 | item 2
 3 | item 3
 5 | item 5
 7 | item 7
 8 | item 8
(6 rows)

select * from rtest_vview3;
 a |   b    
---+--------
 2 | item 2
 5 | item 5
 7 | item 7
(3 rows)

select * from rtest_vview4 order by a, b;
 a |   b    | refcount 
---+--------+----------
 2 | item 2 |        2
 4 | item 4 |        1
 5 | item 5 |        1
 7 | item 7 |        4
(4 rows)

select * from rtest_vview5;
 a |   b    | refcount 
---+--------+----------
 1 | item 1 |        0
 2 | item 2 |        2
 3 | item 3 |        0
 4 | item 4 |        1
 5 | item 5 |        1
 6 | item 6 |        0
 7 | item 7 |        4
 8 | item 8 |        0
(8 rows)

insert into rtest_view3 select * from rtest_vview1 where a < 7;
select * from rtest_view3;
 a |   b    
---+--------
 2 | item 2
 4 | item 4
 5 | item 5
(3 rows)

delete from rtest_view3;
insert into rtest_view3 select * from rtest_vview2 where a != 5 and b !~ '2';
select * from rtest_view3;
 a |   b    
---+--------
 1 | item 1
 3 | item 3
 7 | item 7
 8 | item 8
(4 rows)

delete from rtest_view3;
insert into rtest_view3 select * from rtest_vview3;
select * from rtest_view3;
 a |   b    
---+--------
 2 | item 2
 5 | item 5
 7 | item 7
(3 rows)

delete from rtest_view3;
insert into rtest_view4 select * from rtest_vview4 where 3 > refcount;
select * from rtest_view4 order by a, b;
 a |   b    | c 
---+--------+---
 2 | item 2 | 2
 4 | item 4 | 1
 5 | item 5 | 1
(3 rows)

delete from rtest_view4;
insert into rtest_view4 select * from rtest_vview5 where a > 2 and refcount = 0;
select * from rtest_view4;
 a |   b    | c 
---+--------+---
 3 | item 3 | 0
 6 | item 6 | 0
 8 | item 8 | 0
(3 rows)

delete from rtest_view4;
--
-- Test for computations in views
--
create table rtest_comp (
	part	text,
	unit	char(4),
	size	float
);
create table rtest_unitfact (
	unit	char(4),
	factor	float
);
create view rtest_vcomp as 
	select X.part, (X.size * Y.factor) as size_in_cm
			from rtest_comp X, rtest_unitfact Y
			where X.unit = Y.unit;
insert into rtest_unitfact values ('m', 100.0);
insert into rtest_unitfact values ('cm', 1.0);
insert into rtest_unitfact values ('inch', 2.54);
insert into rtest_comp values ('p1', 'm', 5.0);
insert into rtest_comp values ('p2', 'm', 3.0);
insert into rtest_comp values ('p3', 'cm', 5.0);
insert into rtest_comp values ('p4', 'cm', 15.0);
insert into rtest_comp values ('p5', 'inch', 7.0);
insert into rtest_comp values ('p6', 'inch', 4.4);
select * from rtest_vcomp order by part;
 part | size_in_cm 
------+------------
 p1   |        500
 p2   |        300
 p3   |          5
 p4   |         15
 p5   |      17.78
 p6   |     11.176
(6 rows)

select * from rtest_vcomp where size_in_cm > 10.0 order by size_in_cm using >;
 part | size_in_cm 
------+------------
 p1   |        500
 p2   |        300
 p5   |      17.78
 p4   |         15
 p6   |     11.176
(5 rows)

--
-- In addition run the (slightly modified) queries from the
-- programmers manual section on the rule system.
--
CREATE TABLE shoe_data (
	shoename   char(10),      -- primary key
	sh_avail   integer,       -- available # of pairs
	slcolor    char(10),      -- preferred shoelace color
	slminlen   float,         -- miminum shoelace length
	slmaxlen   float,         -- maximum shoelace length
	slunit     char(8)        -- length unit
);
CREATE TABLE shoelace_data (
	sl_name    char(10),      -- primary key
	sl_avail   integer,       -- available # of pairs
	sl_color   char(10),      -- shoelace color
	sl_len     float,         -- shoelace length
	sl_unit    char(8)        -- length unit
);
CREATE TABLE unit (
	un_name    char(8),       -- the primary key
	un_fact    float          -- factor to transform to cm
);
CREATE VIEW shoe AS
	SELECT sh.shoename,
		   sh.sh_avail,
		   sh.slcolor,
		   sh.slminlen,
		   sh.slminlen * un.un_fact AS slminlen_cm,
		   sh.slmaxlen,
		   sh.slmaxlen * un.un_fact AS slmaxlen_cm,
		   sh.slunit
	  FROM shoe_data sh, unit un
	 WHERE sh.slunit = un.un_name;
CREATE VIEW shoelace AS
	SELECT s.sl_name,
		   s.sl_avail,
		   s.sl_color,
		   s.sl_len,
		   s.sl_unit,
		   s.sl_len * u.un_fact AS sl_len_cm
	  FROM shoelace_data s, unit u
	 WHERE s.sl_unit = u.un_name;
CREATE VIEW shoe_ready AS
	SELECT rsh.shoename,
		   rsh.sh_avail,
		   rsl.sl_name,
		   rsl.sl_avail,
		   int4smaller(rsh.sh_avail, rsl.sl_avail) AS total_avail
	  FROM shoe rsh, shoelace rsl
	 WHERE rsl.sl_color = rsh.slcolor
	   AND rsl.sl_len_cm >= rsh.slminlen_cm
	   AND rsl.sl_len_cm <= rsh.slmaxlen_cm;
INSERT INTO unit VALUES ('cm', 1.0);
INSERT INTO unit VALUES ('m', 100.0);
INSERT INTO unit VALUES ('inch', 2.54);
INSERT INTO shoe_data VALUES ('sh1', 2, 'black', 70.0, 90.0, 'cm');
INSERT INTO shoe_data VALUES ('sh2', 0, 'black', 30.0, 40.0, 'inch');
INSERT INTO shoe_data VALUES ('sh3', 4, 'brown', 50.0, 65.0, 'cm');
INSERT INTO shoe_data VALUES ('sh4', 3, 'brown', 40.0, 50.0, 'inch');
INSERT INTO shoelace_data VALUES ('sl1', 5, 'black', 80.0, 'cm');
INSERT INTO shoelace_data VALUES ('sl2', 6, 'black', 100.0, 'cm');
INSERT INTO shoelace_data VALUES ('sl3', 0, 'black', 35.0 , 'inch');
INSERT INTO shoelace_data VALUES ('sl4', 8, 'black', 40.0 , 'inch');
INSERT INTO shoelace_data VALUES ('sl5', 4, 'brown', 1.0 , 'm');
INSERT INTO shoelace_data VALUES ('sl6', 0, 'brown', 0.9 , 'm');
INSERT INTO shoelace_data VALUES ('sl7', 7, 'brown', 60 , 'cm');
INSERT INTO shoelace_data VALUES ('sl8', 1, 'brown', 40 , 'inch');
-- SELECTs in doc
SELECT * FROM shoelace ORDER BY sl_name;
  sl_name   | sl_avail |  sl_color  | sl_len | sl_unit  | sl_len_cm 
------------+----------+------------+--------+----------+-----------
 sl1        |        5 | black      |     80 | cm       |        80
 sl2        |        6 | black      |    100 | cm       |       100
 sl3        |        0 | black      |     35 | inch     |      88.9
 sl4        |        8 | black      |     40 | inch     |     101.6
 sl5        |        4 | brown      |      1 | m        |       100
 sl6        |        0 | brown      |    0.9 | m        |        90
 sl7        |        7 | brown      |     60 | cm       |        60
 sl8        |        1 | brown      |     40 | inch     |     101.6
(8 rows)

SELECT * FROM shoe_ready WHERE total_avail >= 2 ORDER BY 1;
  shoename  | sh_avail |  sl_name   | sl_avail | total_avail 
------------+----------+------------+----------+-------------
 sh1        |        2 | sl1        |        5 |           2
 sh3        |        4 | sl7        |        7 |           4
(2 rows)

    CREATE TABLE shoelace_log (
        sl_name    char(10),      -- shoelace changed
        sl_avail   integer,       -- new available value
        log_who    name,          -- who did it
        log_when   timestamp      -- when
    );
-- Want "log_who" to be CURRENT_USER,
-- but that is non-portable for the regression test
-- - thomas 1999-02-21
    CREATE RULE log_shoelace AS ON UPDATE TO shoelace_data
        WHERE NEW.sl_avail != OLD.sl_avail
        DO INSERT INTO shoelace_log VALUES (
                                        NEW.sl_name,
                                        NEW.sl_avail,
                                        'Al Bundy',
                                        'epoch'
                                    );
UPDATE shoelace_data SET sl_avail = 6 WHERE  sl_name = 'sl7';
SELECT * FROM shoelace_log;
  sl_name   | sl_avail | log_who  |         log_when         
------------+----------+----------+--------------------------
 sl7        |        6 | Al Bundy | Thu Jan 01 00:00:00 1970
(1 row)

    CREATE RULE shoelace_ins AS ON INSERT TO shoelace
        DO INSTEAD
        INSERT INTO shoelace_data VALUES (
               NEW.sl_name,
               NEW.sl_avail,
               NEW.sl_color,
               NEW.sl_len,
               NEW.sl_unit);
    CREATE RULE shoelace_upd AS ON UPDATE TO shoelace
        DO INSTEAD
        UPDATE shoelace_data SET
               sl_name = NEW.sl_name,
               sl_avail = NEW.sl_avail,
               sl_color = NEW.sl_color,
               sl_len = NEW.sl_len,
               sl_unit = NEW.sl_unit
         WHERE sl_name = OLD.sl_name;
    CREATE RULE shoelace_del AS ON DELETE TO shoelace
        DO INSTEAD
        DELETE FROM shoelace_data
         WHERE sl_name = OLD.sl_name;
    CREATE TABLE shoelace_arrive (
        arr_name    char(10),
        arr_quant   integer
    );
    CREATE TABLE shoelace_ok (
        ok_name     char(10),
        ok_quant    integer
    );
    CREATE RULE shoelace_ok_ins AS ON INSERT TO shoelace_ok
        DO INSTEAD
        UPDATE shoelace SET
               sl_avail = sl_avail + NEW.ok_quant
         WHERE sl_name = NEW.ok_name;
INSERT INTO shoelace_arrive VALUES ('sl3', 10);
INSERT INTO shoelace_arrive VALUES ('sl6', 20);
INSERT INTO shoelace_arrive VALUES ('sl8', 20);
SELECT * FROM shoelace ORDER BY sl_name;
  sl_name   | sl_avail |  sl_color  | sl_len | sl_unit  | sl_len_cm 
------------+----------+------------+--------+----------+-----------
 sl1        |        5 | black      |     80 | cm       |        80
 sl2        |        6 | black      |    100 | cm       |       100
 sl3        |        0 | black      |     35 | inch     |      88.9
 sl4        |        8 | black      |     40 | inch     |     101.6
 sl5        |        4 | brown      |      1 | m        |       100
 sl6        |        0 | brown      |    0.9 | m        |        90
 sl7        |        6 | brown      |     60 | cm       |        60
 sl8        |        1 | brown      |     40 | inch     |     101.6
(8 rows)

insert into shoelace_ok select * from shoelace_arrive;
SELECT * FROM shoelace ORDER BY sl_name;
  sl_name   | sl_avail |  sl_color  | sl_len | sl_unit  | sl_len_cm 
------------+----------+------------+--------+----------+-----------
 sl1        |        5 | black      |     80 | cm       |        80
 sl2        |        6 | black      |    100 | cm       |       100
 sl3        |       10 | black      |     35 | inch     |      88.9
 sl4        |        8 | black      |     40 | inch     |     101.6
 sl5        |        4 | brown      |      1 | m        |       100
 sl6        |       20 | brown      |    0.9 | m        |        90
 sl7        |        6 | brown      |     60 | cm       |        60
 sl8        |       21 | brown      |     40 | inch     |     101.6
(8 rows)

SELECT * FROM shoelace_log ORDER BY sl_name;
  sl_name   | sl_avail | log_who  |         log_when         
------------+----------+----------+--------------------------
 sl3        |       10 | Al Bundy | Thu Jan 01 00:00:00 1970
 sl6        |       20 | Al Bundy | Thu Jan 01 00:00:00 1970
 sl7        |        6 | Al Bundy | Thu Jan 01 00:00:00 1970
 sl8        |       21 | Al Bundy | Thu Jan 01 00:00:00 1970
(4 rows)

    CREATE VIEW shoelace_obsolete AS
	SELECT * FROM shoelace WHERE NOT EXISTS
	    (SELECT shoename FROM shoe WHERE slcolor = sl_color);
    CREATE VIEW shoelace_candelete AS
	SELECT * FROM shoelace_obsolete WHERE sl_avail = 0;
insert into shoelace values ('sl9', 0, 'pink', 35.0, 'inch', 0.0);
insert into shoelace values ('sl10', 1000, 'magenta', 40.0, 'inch', 0.0);
SELECT * FROM shoelace_obsolete;
  sl_name   | sl_avail |  sl_color  | sl_len | sl_unit  | sl_len_cm 
------------+----------+------------+--------+----------+-----------
 sl9        |        0 | pink       |     35 | inch     |      88.9
 sl10       |     1000 | magenta    |     40 | inch     |     101.6
(2 rows)

SELECT * FROM shoelace_candelete;
  sl_name   | sl_avail |  sl_color  | sl_len | sl_unit  | sl_len_cm 
------------+----------+------------+--------+----------+-----------
 sl9        |        0 | pink       |     35 | inch     |      88.9
(1 row)

DELETE FROM shoelace WHERE EXISTS
    (SELECT * FROM shoelace_candelete
             WHERE sl_name = shoelace.sl_name);
SELECT * FROM shoelace ORDER BY sl_name;
  sl_name   | sl_avail |  sl_color  | sl_len | sl_unit  | sl_len_cm 
------------+----------+------------+--------+----------+-----------
 sl1        |        5 | black      |     80 | cm       |        80
 sl10       |     1000 | magenta    |     40 | inch     |     101.6
 sl2        |        6 | black      |    100 | cm       |       100
 sl3        |       10 | black      |     35 | inch     |      88.9
 sl4        |        8 | black      |     40 | inch     |     101.6
 sl5        |        4 | brown      |      1 | m        |       100
 sl6        |       20 | brown      |    0.9 | m        |        90
 sl7        |        6 | brown      |     60 | cm       |        60
 sl8        |       21 | brown      |     40 | inch     |     101.6
(9 rows)

SELECT * FROM shoe ORDER BY shoename;
  shoename  | sh_avail |  slcolor   | slminlen | slminlen_cm | slmaxlen | slmaxlen_cm |  slunit  
------------+----------+------------+----------+-------------+----------+-------------+----------
 sh1        |        2 | black      |       70 |          70 |       90 |          90 | cm      
 sh2        |        0 | black      |       30 |        76.2 |       40 |       101.6 | inch    
 sh3        |        4 | brown      |       50 |          50 |       65 |          65 | cm      
 sh4        |        3 | brown      |       40 |       101.6 |       50 |         127 | inch    
(4 rows)

SELECT count(*) FROM shoe;
 count 
-------
     4
(1 row)

--
-- Simple test of qualified ON INSERT ... this did not work in 7.0 ...
--
create table foo (f1 int);
create table foo2 (f1 int);
create rule foorule as on insert to foo where f1 < 100
do instead nothing;
insert into foo values(1);
insert into foo values(1001);
select * from foo;
  f1  
------
 1001
(1 row)

drop rule foorule on foo;
-- this should fail because f1 is not exposed for unqualified reference:
create rule foorule as on insert to foo where f1 < 100
do instead insert into foo2 values (f1);
ERROR:  Attribute "f1" not found
-- this is the correct way:
create rule foorule as on insert to foo where f1 < 100
do instead insert into foo2 values (new.f1);
insert into foo values(2);
insert into foo values(100);
select * from foo;
  f1  
------
 1001
  100
(2 rows)

select * from foo2;
 f1 
----
  2
(1 row)

drop rule foorule on foo;
drop table foo;
drop table foo2;
--
-- Test rules containing INSERT ... SELECT, which is a very ugly special
-- case as of 7.1.  Example is based on bug report from Joel Burton.
--
create table pparent (pid int, txt text);
insert into pparent values (1,'parent1');
insert into pparent values (2,'parent2');
create table cchild (pid int, descrip text);
insert into cchild values (1,'descrip1');
create view vview as
  select pparent.pid, txt, descrip from
    pparent left join cchild using (pid);
create rule rrule as
  on update to vview do instead
(
  insert into cchild (pid, descrip)
    select old.pid, new.descrip where old.descrip isnull; 
  update cchild set descrip = new.descrip where cchild.pid = old.pid;
);
select * from vview;
 pid |   txt   | descrip  
-----+---------+----------
   1 | parent1 | descrip1
   2 | parent2 | 
(2 rows)

update vview set descrip='test1' where pid=1;
select * from vview;
 pid |   txt   | descrip 
-----+---------+---------
   1 | parent1 | test1
   2 | parent2 | 
(2 rows)

update vview set descrip='test2' where pid=2;
select * from vview;
 pid |   txt   | descrip 
-----+---------+---------
   1 | parent1 | test1
   2 | parent2 | test2
(2 rows)

update vview set descrip='test3' where pid=3;
select * from vview;
 pid |   txt   | descrip 
-----+---------+---------
   1 | parent1 | test1
   2 | parent2 | test2
(2 rows)

select * from cchild;
 pid | descrip 
-----+---------
   1 | test1
   2 | test2
(2 rows)

drop rule rrule on vview;
drop view vview;
drop table pparent;
drop table cchild;
--
-- Check that ruleutils are working
--
SELECT viewname, definition FROM pg_views ORDER BY viewname;
         viewname         |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   definition                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
--------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 iexit                    | SELECT ih.name, ih.thepath, interpt_pp(ih.thepath, r.thepath) AS exit FROM ihighway ih, ramp r WHERE (ih.thepath ## r.thepath);
 pg_indexes               | SELECT n.nspname AS schemaname, c.relname AS tablename, i.relname AS indexname, pg_get_indexdef(i.oid) AS indexdef FROM (((pg_index x JOIN pg_class c ON ((c.oid = x.indrelid))) JOIN pg_class i ON ((i.oid = x.indexrelid))) LEFT JOIN pg_namespace n ON ((n.oid = c.relnamespace))) WHERE ((c.relkind = 'r'::"char") AND (i.relkind = 'i'::"char"));
 pg_locks                 | SELECT l.relation, l."database", l."transaction", l.pid, l."mode", l.granted FROM pg_lock_status() l(relation oid, "database" oid, "transaction" xid, pid integer, "mode" text, granted boolean);
 pg_rules                 | SELECT n.nspname AS schemaname, c.relname AS tablename, r.rulename, pg_get_ruledef(r.oid) AS definition FROM ((pg_rewrite r JOIN pg_class c ON ((c.oid = r.ev_class))) LEFT JOIN pg_namespace n ON ((n.oid = c.relnamespace))) WHERE (r.rulename <> '_RETURN'::name);
 pg_settings              | SELECT a.name, a.setting FROM pg_show_all_settings() a(name text, setting text);
 pg_stat_activity         | SELECT d.oid AS datid, d.datname, pg_stat_get_backend_pid(s.backendid) AS procpid, pg_stat_get_backend_userid(s.backendid) AS usesysid, u.usename, pg_stat_get_backend_activity(s.backendid) AS current_query FROM pg_database d, (SELECT pg_stat_get_backend_idset() AS backendid) s, pg_shadow u WHERE ((pg_stat_get_backend_dbid(s.backendid) = d.oid) AND (pg_stat_get_backend_userid(s.backendid) = (u.usesysid)::oid));
 pg_stat_all_indexes      | SELECT c.oid AS relid, i.oid AS indexrelid, n.nspname AS schemaname, c.relname, i.relname AS indexrelname, pg_stat_get_numscans(i.oid) AS idx_scan, pg_stat_get_tuples_returned(i.oid) AS idx_tup_read, pg_stat_get_tuples_fetched(i.oid) AS idx_tup_fetch FROM (((pg_class c JOIN pg_index x ON ((c.oid = x.indrelid))) JOIN pg_class i ON ((i.oid = x.indexrelid))) LEFT JOIN pg_namespace n ON ((n.oid = c.relnamespace))) WHERE (c.relkind = 'r'::"char");
 pg_stat_all_tables       | SELECT c.oid AS relid, n.nspname AS schemaname, c.relname, pg_stat_get_numscans(c.oid) AS seq_scan, pg_stat_get_tuples_returned(c.oid) AS seq_tup_read, sum(pg_stat_get_numscans(i.indexrelid)) AS idx_scan, sum(pg_stat_get_tuples_fetched(i.indexrelid)) AS idx_tup_fetch, pg_stat_get_tuples_inserted(c.oid) AS n_tup_ins, pg_stat_get_tuples_updated(c.oid) AS n_tup_upd, pg_stat_get_tuples_deleted(c.oid) AS n_tup_del FROM ((pg_class c LEFT JOIN pg_index i ON ((c.oid = i.indrelid))) LEFT JOIN pg_namespace n ON ((n.oid = c.relnamespace))) WHERE (c.relkind = 'r'::"char") GROUP BY c.oid, n.nspname, c.relname;
 pg_stat_database         | SELECT d.oid AS datid, d.datname, pg_stat_get_db_numbackends(d.oid) AS numbackends, pg_stat_get_db_xact_commit(d.oid) AS xact_commit, pg_stat_get_db_xact_rollback(d.oid) AS xact_rollback, (pg_stat_get_db_blocks_fetched(d.oid) - pg_stat_get_db_blocks_hit(d.oid)) AS blks_read, pg_stat_get_db_blocks_hit(d.oid) AS blks_hit FROM pg_database d;
 pg_stat_sys_indexes      | SELECT pg_stat_all_indexes.relid, pg_stat_all_indexes.indexrelid, pg_stat_all_indexes.schemaname, pg_stat_all_indexes.relname, pg_stat_all_indexes.indexrelname, pg_stat_all_indexes.idx_scan, pg_stat_all_indexes.idx_tup_read, pg_stat_all_indexes.idx_tup_fetch FROM pg_stat_all_indexes WHERE ((pg_stat_all_indexes.schemaname = 'pg_catalog'::name) OR (pg_stat_all_indexes.schemaname = 'pg_toast'::name));
 pg_stat_sys_tables       | SELECT pg_stat_all_tables.relid, pg_stat_all_tables.schemaname, pg_stat_all_tables.relname, pg_stat_all_tables.seq_scan, pg_stat_all_tables.seq_tup_read, pg_stat_all_tables.idx_scan, pg_stat_all_tables.idx_tup_fetch, pg_stat_all_tables.n_tup_ins, pg_stat_all_tables.n_tup_upd, pg_stat_all_tables.n_tup_del FROM pg_stat_all_tables WHERE ((pg_stat_all_tables.schemaname = 'pg_catalog'::name) OR (pg_stat_all_tables.schemaname = 'pg_toast'::name));
 pg_stat_user_indexes     | SELECT pg_stat_all_indexes.relid, pg_stat_all_indexes.indexrelid, pg_stat_all_indexes.schemaname, pg_stat_all_indexes.relname, pg_stat_all_indexes.indexrelname, pg_stat_all_indexes.idx_scan, pg_stat_all_indexes.idx_tup_read, pg_stat_all_indexes.idx_tup_fetch FROM pg_stat_all_indexes WHERE ((pg_stat_all_indexes.schemaname <> 'pg_catalog'::name) AND (pg_stat_all_indexes.schemaname <> 'pg_toast'::name));
 pg_stat_user_tables      | SELECT pg_stat_all_tables.relid, pg_stat_all_tables.schemaname, pg_stat_all_tables.relname, pg_stat_all_tables.seq_scan, pg_stat_all_tables.seq_tup_read, pg_stat_all_tables.idx_scan, pg_stat_all_tables.idx_tup_fetch, pg_stat_all_tables.n_tup_ins, pg_stat_all_tables.n_tup_upd, pg_stat_all_tables.n_tup_del FROM pg_stat_all_tables WHERE ((pg_stat_all_tables.schemaname <> 'pg_catalog'::name) AND (pg_stat_all_tables.schemaname <> 'pg_toast'::name));
 pg_statio_all_indexes    | SELECT c.oid AS relid, i.oid AS indexrelid, n.nspname AS schemaname, c.relname, i.relname AS indexrelname, (pg_stat_get_blocks_fetched(i.oid) - pg_stat_get_blocks_hit(i.oid)) AS idx_blks_read, pg_stat_get_blocks_hit(i.oid) AS idx_blks_hit FROM (((pg_class c JOIN pg_index x ON ((c.oid = x.indrelid))) JOIN pg_class i ON ((i.oid = x.indexrelid))) LEFT JOIN pg_namespace n ON ((n.oid = c.relnamespace))) WHERE (c.relkind = 'r'::"char");
 pg_statio_all_sequences  | SELECT c.oid AS relid, n.nspname AS schemaname, c.relname, (pg_stat_get_blocks_fetched(c.oid) - pg_stat_get_blocks_hit(c.oid)) AS blks_read, pg_stat_get_blocks_hit(c.oid) AS blks_hit FROM (pg_class c LEFT JOIN pg_namespace n ON ((n.oid = c.relnamespace))) WHERE (c.relkind = 'S'::"char");
 pg_statio_all_tables     | SELECT c.oid AS relid, n.nspname AS schemaname, c.relname, (pg_stat_get_blocks_fetched(c.oid) - pg_stat_get_blocks_hit(c.oid)) AS heap_blks_read, pg_stat_get_blocks_hit(c.oid) AS heap_blks_hit, sum((pg_stat_get_blocks_fetched(i.indexrelid) - pg_stat_get_blocks_hit(i.indexrelid))) AS idx_blks_read, sum(pg_stat_get_blocks_hit(i.indexrelid)) AS idx_blks_hit, (pg_stat_get_blocks_fetched(t.oid) - pg_stat_get_blocks_hit(t.oid)) AS toast_blks_read, pg_stat_get_blocks_hit(t.oid) AS toast_blks_hit, (pg_stat_get_blocks_fetched(x.oid) - pg_stat_get_blocks_hit(x.oid)) AS tidx_blks_read, pg_stat_get_blocks_hit(x.oid) AS tidx_blks_hit FROM ((((pg_class c LEFT JOIN pg_index i ON ((c.oid = i.indrelid))) LEFT JOIN pg_class t ON ((c.reltoastrelid = t.oid))) LEFT JOIN pg_class x ON ((t.reltoastidxid = x.oid))) LEFT JOIN pg_namespace n ON ((n.oid = c.relnamespace))) WHERE (c.relkind = 'r'::"char") GROUP BY c.oid, n.nspname, c.relname, t.oid, x.oid;
 pg_statio_sys_indexes    | SELECT pg_statio_all_indexes.relid, pg_statio_all_indexes.indexrelid, pg_statio_all_indexes.schemaname, pg_statio_all_indexes.relname, pg_statio_all_indexes.indexrelname, pg_statio_all_indexes.idx_blks_read, pg_statio_all_indexes.idx_blks_hit FROM pg_statio_all_indexes WHERE ((pg_statio_all_indexes.schemaname = 'pg_catalog'::name) OR (pg_statio_all_indexes.schemaname = 'pg_toast'::name));
 pg_statio_sys_sequences  | SELECT pg_statio_all_sequences.relid, pg_statio_all_sequences.schemaname, pg_statio_all_sequences.relname, pg_statio_all_sequences.blks_read, pg_statio_all_sequences.blks_hit FROM pg_statio_all_sequences WHERE ((pg_statio_all_sequences.schemaname = 'pg_catalog'::name) OR (pg_statio_all_sequences.schemaname = 'pg_toast'::name));
 pg_statio_sys_tables     | SELECT pg_statio_all_tables.relid, pg_statio_all_tables.schemaname, pg_statio_all_tables.relname, pg_statio_all_tables.heap_blks_read, pg_statio_all_tables.heap_blks_hit, pg_statio_all_tables.idx_blks_read, pg_statio_all_tables.idx_blks_hit, pg_statio_all_tables.toast_blks_read, pg_statio_all_tables.toast_blks_hit, pg_statio_all_tables.tidx_blks_read, pg_statio_all_tables.tidx_blks_hit FROM pg_statio_all_tables WHERE ((pg_statio_all_tables.schemaname = 'pg_catalog'::name) OR (pg_statio_all_tables.schemaname = 'pg_toast'::name));
 pg_statio_user_indexes   | SELECT pg_statio_all_indexes.relid, pg_statio_all_indexes.indexrelid, pg_statio_all_indexes.schemaname, pg_statio_all_indexes.relname, pg_statio_all_indexes.indexrelname, pg_statio_all_indexes.idx_blks_read, pg_statio_all_indexes.idx_blks_hit FROM pg_statio_all_indexes WHERE ((pg_statio_all_indexes.schemaname <> 'pg_catalog'::name) AND (pg_statio_all_indexes.schemaname <> 'pg_toast'::name));
 pg_statio_user_sequences | SELECT pg_statio_all_sequences.relid, pg_statio_all_sequences.schemaname, pg_statio_all_sequences.relname, pg_statio_all_sequences.blks_read, pg_statio_all_sequences.blks_hit FROM pg_statio_all_sequences WHERE ((pg_statio_all_sequences.schemaname <> 'pg_catalog'::name) AND (pg_statio_all_sequences.schemaname <> 'pg_toast'::name));
 pg_statio_user_tables    | SELECT pg_statio_all_tables.relid, pg_statio_all_tables.schemaname, pg_statio_all_tables.relname, pg_statio_all_tables.heap_blks_read, pg_statio_all_tables.heap_blks_hit, pg_statio_all_tables.idx_blks_read, pg_statio_all_tables.idx_blks_hit, pg_statio_all_tables.toast_blks_read, pg_statio_all_tables.toast_blks_hit, pg_statio_all_tables.tidx_blks_read, pg_statio_all_tables.tidx_blks_hit FROM pg_statio_all_tables WHERE ((pg_statio_all_tables.schemaname <> 'pg_catalog'::name) AND (pg_statio_all_tables.schemaname <> 'pg_toast'::name));
 pg_stats                 | SELECT nspname AS schemaname, relname AS tablename, attname, stanullfrac AS null_frac, stawidth AS avg_width, stadistinct AS n_distinct, CASE WHEN (1 = stakind1) THEN stavalues1 WHEN (1 = stakind2) THEN stavalues2 WHEN (1 = stakind3) THEN stavalues3 WHEN (1 = stakind4) THEN stavalues4 ELSE NULL::text[] END AS most_common_vals, CASE WHEN (1 = stakind1) THEN stanumbers1 WHEN (1 = stakind2) THEN stanumbers2 WHEN (1 = stakind3) THEN stanumbers3 WHEN (1 = stakind4) THEN stanumbers4 ELSE NULL::real[] END AS most_common_freqs, CASE WHEN (2 = stakind1) THEN stavalues1 WHEN (2 = stakind2) THEN stavalues2 WHEN (2 = stakind3) THEN stavalues3 WHEN (2 = stakind4) THEN stavalues4 ELSE NULL::text[] END AS histogram_bounds, CASE WHEN (3 = stakind1) THEN stanumbers1[1] WHEN (3 = stakind2) THEN stanumbers2[1] WHEN (3 = stakind3) THEN stanumbers3[1] WHEN (3 = stakind4) THEN stanumbers4[1] ELSE NULL::real END AS correlation FROM (((pg_statistic s JOIN pg_class c ON ((c.oid = s.starelid))) JOIN pg_attribute a ON (((c.oid = a.attrelid) AND (a.attnum = s.staattnum)))) LEFT JOIN pg_namespace n ON ((n.oid = c.relnamespace))) WHERE has_table_privilege(c.oid, 'select'::text);
 pg_tables                | SELECT n.nspname AS schemaname, c.relname AS tablename, pg_get_userbyid(c.relowner) AS tableowner, c.relhasindex AS hasindexes, c.relhasrules AS hasrules, (c.reltriggers > 0) AS hastriggers FROM (pg_class c LEFT JOIN pg_namespace n ON ((n.oid = c.relnamespace))) WHERE ((c.relkind = 'r'::"char") OR (c.relkind = 's'::"char"));
 pg_user                  | SELECT pg_shadow.usename, pg_shadow.usesysid, pg_shadow.usecreatedb, pg_shadow.usesuper, pg_shadow.usecatupd, '********'::text AS passwd, pg_shadow.valuntil, pg_shadow.useconfig FROM pg_shadow;
 pg_views                 | SELECT n.nspname AS schemaname, c.relname AS viewname, pg_get_userbyid(c.relowner) AS viewowner, pg_get_viewdef(c.oid) AS definition FROM (pg_class c LEFT JOIN pg_namespace n ON ((n.oid = c.relnamespace))) WHERE (c.relkind = 'v'::"char");
 rtest_v1                 | SELECT rtest_t1.a, rtest_t1.b FROM rtest_t1;
 rtest_vcomp              | SELECT x.part, (x.size * y.factor) AS size_in_cm FROM rtest_comp x, rtest_unitfact y WHERE (x.unit = y.unit);
 rtest_vview1             | SELECT x.a, x.b FROM rtest_view1 x WHERE (0 < (SELECT count(*) AS count FROM rtest_view2 y WHERE (y.a = x.a)));
 rtest_vview2             | SELECT rtest_view1.a, rtest_view1.b FROM rtest_view1 WHERE rtest_view1.v;
 rtest_vview3             | SELECT x.a, x.b FROM rtest_vview2 x WHERE (0 < (SELECT count(*) AS count FROM rtest_view2 y WHERE (y.a = x.a)));
 rtest_vview4             | SELECT x.a, x.b, count(y.a) AS refcount FROM rtest_view1 x, rtest_view2 y WHERE (x.a = y.a) GROUP BY x.a, x.b;
 rtest_vview5             | SELECT rtest_view1.a, rtest_view1.b, rtest_viewfunc1(rtest_view1.a) AS refcount FROM rtest_view1;
 shoe                     | SELECT sh.shoename, sh.sh_avail, sh.slcolor, sh.slminlen, (sh.slminlen * un.un_fact) AS slminlen_cm, sh.slmaxlen, (sh.slmaxlen * un.un_fact) AS slmaxlen_cm, sh.slunit FROM shoe_data sh, unit un WHERE (sh.slunit = un.un_name);
 shoe_ready               | SELECT rsh.shoename, rsh.sh_avail, rsl.sl_name, rsl.sl_avail, int4smaller(rsh.sh_avail, rsl.sl_avail) AS total_avail FROM shoe rsh, shoelace rsl WHERE (((rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)) AND (rsl.sl_len_cm <= rsh.slmaxlen_cm));
 shoelace                 | SELECT s.sl_name, s.sl_avail, s.sl_color, s.sl_len, s.sl_unit, (s.sl_len * u.un_fact) AS sl_len_cm FROM shoelace_data s, unit u WHERE (s.sl_unit = u.un_name);
 shoelace_candelete       | SELECT shoelace_obsolete.sl_name, shoelace_obsolete.sl_avail, shoelace_obsolete.sl_color, shoelace_obsolete.sl_len, shoelace_obsolete.sl_unit, shoelace_obsolete.sl_len_cm FROM shoelace_obsolete WHERE (shoelace_obsolete.sl_avail = 0);
 shoelace_obsolete        | SELECT shoelace.sl_name, shoelace.sl_avail, shoelace.sl_color, shoelace.sl_len, shoelace.sl_unit, shoelace.sl_len_cm FROM shoelace WHERE (NOT (EXISTS (SELECT shoe.shoename FROM shoe WHERE (shoe.slcolor = shoelace.sl_color))));
 street                   | SELECT r.name, r.thepath, c.cname FROM ONLY road r, real_city c WHERE (c.outline ## r.thepath);
 toyemp                   | SELECT emp.name, emp.age, emp."location", (12 * emp.salary) AS annualsal FROM emp;
(40 rows)

SELECT tablename, rulename, definition FROM pg_rules 
	ORDER BY tablename, rulename;
   tablename   |    rulename     |                                                                                                                                  definition                                                                                                                                   
---------------+-----------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 pg_settings   | pg_settings_n   | CREATE RULE pg_settings_n AS ON UPDATE TO pg_settings DO INSTEAD NOTHING;
 pg_settings   | pg_settings_u   | CREATE RULE pg_settings_u AS ON UPDATE TO pg_settings WHERE (new.name = old.name) DO SELECT set_config(old.name, new.setting, false) AS set_config;
 rtest_emp     | rtest_emp_del   | CREATE RULE rtest_emp_del AS ON DELETE TO rtest_emp DO INSERT INTO rtest_emplog (ename, who, "action", newsal, oldsal) VALUES (old.ename, "current_user"(), 'fired     '::bpchar, '$0.00'::money, old.salary);
 rtest_emp     | rtest_emp_ins   | CREATE RULE rtest_emp_ins AS ON INSERT TO rtest_emp DO INSERT INTO rtest_emplog (ename, who, "action", newsal, oldsal) VALUES (new.ename, "current_user"(), 'hired     '::bpchar, new.salary, '$0.00'::money);
 rtest_emp     | rtest_emp_upd   | CREATE RULE rtest_emp_upd AS ON UPDATE TO rtest_emp WHERE (new.salary <> old.salary) DO INSERT INTO rtest_emplog (ename, who, "action", newsal, oldsal) VALUES (new.ename, "current_user"(), 'honored   '::bpchar, new.salary, old.salary);
 rtest_nothn1  | rtest_nothn_r1  | CREATE RULE rtest_nothn_r1 AS ON INSERT TO rtest_nothn1 WHERE ((new.a >= 10) AND (new.a < 20)) DO INSTEAD NOTHING;
 rtest_nothn1  | rtest_nothn_r2  | CREATE RULE rtest_nothn_r2 AS ON INSERT TO rtest_nothn1 WHERE ((new.a >= 30) AND (new.a < 40)) DO INSTEAD NOTHING;
 rtest_nothn2  | rtest_nothn_r3  | CREATE RULE rtest_nothn_r3 AS ON INSERT TO rtest_nothn2 WHERE (new.a >= 100) DO INSTEAD INSERT INTO rtest_nothn3 (a, b) VALUES (new.a, new.b);
 rtest_nothn2  | rtest_nothn_r4  | CREATE RULE rtest_nothn_r4 AS ON INSERT TO rtest_nothn2 DO INSTEAD NOTHING;
 rtest_order1  | rtest_order_r1  | CREATE RULE rtest_order_r1 AS ON INSERT TO rtest_order1 DO INSTEAD INSERT INTO rtest_order2 (a, b, c) VALUES (new.a, nextval('rtest_seq'::text), 'rule 1 - this should run 1st'::text);
 rtest_order1  | rtest_order_r2  | CREATE RULE rtest_order_r2 AS ON INSERT TO rtest_order1 DO INSERT INTO rtest_order2 (a, b, c) VALUES (new.a, nextval('rtest_seq'::text), 'rule 2 - this should run 2nd'::text);
 rtest_order1  | rtest_order_r3  | CREATE RULE rtest_order_r3 AS ON INSERT TO rtest_order1 DO INSTEAD INSERT INTO rtest_order2 (a, b, c) VALUES (new.a, nextval('rtest_seq'::text), 'rule 3 - this should run 3rd'::text);
 rtest_order1  | rtest_order_r4  | CREATE RULE rtest_order_r4 AS ON INSERT TO rtest_order1 WHERE (new.a < 100) DO INSTEAD INSERT INTO rtest_order2 (a, b, c) VALUES (new.a, nextval('rtest_seq'::text), 'rule 4 - this should run 4th'::text);
 rtest_person  | rtest_pers_del  | CREATE RULE rtest_pers_del AS ON DELETE TO rtest_person DO DELETE FROM rtest_admin WHERE (rtest_admin.pname = old.pname);
 rtest_person  | rtest_pers_upd  | CREATE RULE rtest_pers_upd AS ON UPDATE TO rtest_person DO UPDATE rtest_admin SET pname = new.pname WHERE (rtest_admin.pname = old.pname);
 rtest_system  | rtest_sys_del   | CREATE RULE rtest_sys_del AS ON DELETE TO rtest_system DO (DELETE FROM rtest_interface WHERE (rtest_interface.sysname = old.sysname); DELETE FROM rtest_admin WHERE (rtest_admin.sysname = old.sysname); );
 rtest_system  | rtest_sys_upd   | CREATE RULE rtest_sys_upd AS ON UPDATE TO rtest_system DO (UPDATE rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname); UPDATE rtest_admin SET sysname = new.sysname WHERE (rtest_admin.sysname = old.sysname); );
 rtest_t4      | rtest_t4_ins1   | CREATE RULE rtest_t4_ins1 AS ON INSERT TO rtest_t4 WHERE ((new.a >= 10) AND (new.a < 20)) DO INSTEAD INSERT INTO rtest_t5 (a, b) VALUES (new.a, new.b);
 rtest_t4      | rtest_t4_ins2   | CREATE RULE rtest_t4_ins2 AS ON INSERT TO rtest_t4 WHERE ((new.a >= 20) AND (new.a < 30)) DO INSERT INTO rtest_t6 (a, b) VALUES (new.a, new.b);
 rtest_t5      | rtest_t5_ins    | CREATE RULE rtest_t5_ins AS ON INSERT TO rtest_t5 WHERE (new.a > 15) DO INSERT INTO rtest_t7 (a, b) VALUES (new.a, new.b);
 rtest_t6      | rtest_t6_ins    | CREATE RULE rtest_t6_ins AS ON INSERT TO rtest_t6 WHERE (new.a > 25) DO INSTEAD INSERT INTO rtest_t8 (a, b) VALUES (new.a, new.b);
 rtest_v1      | rtest_v1_del    | CREATE RULE rtest_v1_del AS ON DELETE TO rtest_v1 DO INSTEAD DELETE FROM rtest_t1 WHERE (rtest_t1.a = old.a);
 rtest_v1      | rtest_v1_ins    | CREATE RULE rtest_v1_ins AS ON INSERT TO rtest_v1 DO INSTEAD INSERT INTO rtest_t1 (a, b) VALUES (new.a, new.b);
 rtest_v1      | rtest_v1_upd    | CREATE RULE rtest_v1_upd AS ON UPDATE TO rtest_v1 DO INSTEAD UPDATE rtest_t1 SET a = new.a, b = new.b WHERE (rtest_t1.a = old.a);
 shoelace      | shoelace_del    | CREATE RULE shoelace_del AS ON DELETE TO shoelace DO INSTEAD DELETE FROM shoelace_data WHERE (shoelace_data.sl_name = old.sl_name);
 shoelace      | shoelace_ins    | CREATE RULE shoelace_ins AS ON INSERT TO shoelace DO INSTEAD INSERT INTO shoelace_data (sl_name, sl_avail, sl_color, sl_len, sl_unit) VALUES (new.sl_name, new.sl_avail, new.sl_color, new.sl_len, new.sl_unit);
 shoelace      | shoelace_upd    | CREATE RULE shoelace_upd AS ON UPDATE TO shoelace DO INSTEAD UPDATE shoelace_data SET sl_name = new.sl_name, sl_avail = new.sl_avail, sl_color = new.sl_color, sl_len = new.sl_len, sl_unit = new.sl_unit WHERE (shoelace_data.sl_name = old.sl_name);
 shoelace_data | log_shoelace    | CREATE RULE log_shoelace AS ON UPDATE TO shoelace_data WHERE (new.sl_avail <> old.sl_avail) DO INSERT INTO shoelace_log (sl_name, sl_avail, log_who, log_when) VALUES (new.sl_name, new.sl_avail, 'Al Bundy'::name, 'Thu Jan 01 00:00:00 1970'::timestamp without time zone);
 shoelace_ok   | shoelace_ok_ins | CREATE RULE shoelace_ok_ins AS ON INSERT TO shoelace_ok DO INSTEAD UPDATE shoelace SET sl_avail = (shoelace.sl_avail + new.ok_quant) WHERE (shoelace.sl_name = new.ok_name);
(29 rows)

--
-- CREATE OR REPLACE RULE
--
CREATE TABLE ruletest_tbl (a int, b int);
CREATE TABLE ruletest_tbl2 (a int, b int);
CREATE OR REPLACE RULE myrule AS ON INSERT TO ruletest_tbl
	DO INSTEAD INSERT INTO ruletest_tbl2 VALUES (10, 10);
INSERT INTO ruletest_tbl VALUES (99, 99);
CREATE OR REPLACE RULE myrule AS ON INSERT TO ruletest_tbl
	DO INSTEAD INSERT INTO ruletest_tbl2 VALUES (1000, 1000);
INSERT INTO ruletest_tbl VALUES (99, 99);
SELECT * FROM ruletest_tbl2;
  a   |  b   
------+------
   10 |   10
 1000 | 1000
(2 rows)