-- -- 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; -- Test comments COMMENT ON RULE rtest_v1_bad ON rtest_v1 IS 'bad rule'; COMMENT ON RULE rtest_v1_del ON rtest_v1 IS 'delete rule'; COMMENT ON RULE rtest_v1_del ON rtest_v1 IS NULL; -- -- 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 also ( 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 also ( 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 also update rtest_admin set pname = new.pname where pname = old.pname; create rule rtest_pers_del as on delete to rtest_person do also 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; -- delete with constant expression delete from rtest_v1 where a = 1; select * from rtest_v1; insert into rtest_v1 values (1, 11); delete from rtest_v1 where b = 12; select * from rtest_v1; insert into rtest_v1 values (2, 12); insert into rtest_v1 values (2, 13); select * from rtest_v1; ** 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 \r delete from rtest_v1 where b = 12; select * from rtest_v1; delete from rtest_v1; -- insert select insert into rtest_v1 select * from rtest_t2; select * from rtest_v1; delete from rtest_v1; -- same with swapped targetlist insert into rtest_v1 (b, a) select b, a from rtest_t2; select * from rtest_v1; -- now with only one target attribute insert into rtest_v1 (a) select a from rtest_t3; select * from rtest_v1; select * from rtest_v1 where b isnull; -- 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; -- now updates with constant expression update rtest_v1 set b = 42 where a = 2; select * from rtest_v1; update rtest_v1 set b = 99 where b = 42; select * from rtest_v1; update rtest_v1 set b = 88 where b < 50; select * from rtest_v1; delete from rtest_v1; insert into rtest_v1 select rtest_t2.a, rtest_t3.b from rtest_t2, rtest_t3 where rtest_t2.a = rtest_t3.a; select * from rtest_v1; -- updates in a mergejoin update rtest_v1 set b = rtest_t2.b from rtest_t2 where rtest_v1.a = rtest_t2.a; select * from rtest_v1; insert into rtest_v1 select * from rtest_t3; select * from rtest_v1; update rtest_t1 set a = a + 10 where b > 30; select * from rtest_v1; update rtest_v1 set a = rtest_t3.a + 20 from rtest_t3 where rtest_v1.b = rtest_t3.b; select * from rtest_v1; -- -- 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; select * from rtest_admin; 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; delete from rtest_system where sysname = 'orion'; select * from rtest_interface; select * from rtest_admin; -- -- Rule qualification test -- insert into rtest_emp values ('wiecc', '5000.00'); insert into rtest_emp values ('gates', '80000.00'); update rtest_emp set ename = 'wiecx' where ename = 'wiecc'; 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; 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; update rtest_empmass set salary = salary + '1000.00'; update rtest_emp set salary = rtest_empmass.salary from rtest_empmass where rtest_emp.ename = rtest_empmass.ename; select ename, who = current_user as "matches user", action, newsal, oldsal from rtest_emplog order by ename, action, newsal; delete from rtest_emp using rtest_empmass where rtest_emp.ename = rtest_empmass.ename; select ename, who = current_user as "matches user", action, newsal, oldsal from rtest_emplog order by ename, action, newsal; -- -- 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; select * from rtest_t5; select * from rtest_t6; select * from rtest_t7; select * from rtest_t8; 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; select * from rtest_t5; select * from rtest_t6; select * from rtest_t7; select * from rtest_t8; insert into rtest_t4 select * from rtest_t9 where b ~ 'and t8'; select * from rtest_t4; select * from rtest_t5; select * from rtest_t6; select * from rtest_t7; select * from rtest_t8; insert into rtest_t4 select a + 1, b from rtest_t9 where a in (20, 30, 40); select * from rtest_t4; select * from rtest_t5; select * from rtest_t6; select * from rtest_t7; select * from rtest_t8; -- -- Check that the ordering of rules fired is correct -- insert into rtest_order1 values (1); select * from rtest_order2; -- -- 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; 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; select * from rtest_nothn3; 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; 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; select * from rtest_nothn3; 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; select * from rtest_vview2; select * from rtest_vview3; select * from rtest_vview4 order by a, b; select * from rtest_vview5; insert into rtest_view3 select * from rtest_vview1 where a < 7; select * from rtest_view3; delete from rtest_view3; insert into rtest_view3 select * from rtest_vview2 where a != 5 and b !~ '2'; select * from rtest_view3; delete from rtest_view3; insert into rtest_view3 select * from rtest_vview3; select * from rtest_view3; delete from rtest_view3; insert into rtest_view4 select * from rtest_vview4 where 3 > refcount; select * from rtest_view4 order by a, b; delete from rtest_view4; insert into rtest_view4 select * from rtest_vview5 where a > 2 and refcount = 0; select * from rtest_view4; 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; select * from rtest_vcomp where size_in_cm > 10.0 order by size_in_cm using >; -- -- 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, -- minimum 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; SELECT * FROM shoe_ready WHERE total_avail >= 2 ORDER BY 1; 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; 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; insert into shoelace_ok select * from shoelace_arrive; SELECT * FROM shoelace ORDER BY sl_name; SELECT * FROM shoelace_log ORDER BY sl_name; 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); -- Unsupported (even though a similar updatable view construct is) insert into shoelace values ('sl10', 1000, 'magenta', 40.0, 'inch', 0.0) on conflict do nothing; SELECT * FROM shoelace_obsolete ORDER BY sl_len_cm; SELECT * FROM shoelace_candelete; DELETE FROM shoelace WHERE EXISTS (SELECT * FROM shoelace_candelete WHERE sl_name = shoelace.sl_name); SELECT * FROM shoelace ORDER BY sl_name; SELECT * FROM shoe ORDER BY shoename; SELECT count(*) FROM shoe; -- -- Simple test of qualified ON INSERT ... this did not work in 7.0 ... -- create table rules_foo (f1 int); create table rules_foo2 (f1 int); create rule rules_foorule as on insert to rules_foo where f1 < 100 do instead nothing; insert into rules_foo values(1); insert into rules_foo values(1001); select * from rules_foo; drop rule rules_foorule on rules_foo; -- this should fail because f1 is not exposed for unqualified reference: create rule rules_foorule as on insert to rules_foo where f1 < 100 do instead insert into rules_foo2 values (f1); -- this is the correct way: create rule rules_foorule as on insert to rules_foo where f1 < 100 do instead insert into rules_foo2 values (new.f1); insert into rules_foo values(2); insert into rules_foo values(100); select * from rules_foo; select * from rules_foo2; drop rule rules_foorule on rules_foo; drop table rules_foo; drop table rules_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; update vview set descrip='test1' where pid=1; select * from vview; update vview set descrip='test2' where pid=2; select * from vview; update vview set descrip='test3' where pid=3; select * from vview; select * from cchild; drop rule rrule on vview; drop view vview; drop table pparent; drop table cchild; -- -- Check that ruleutils are working -- -- temporarily disable fancy output, so view changes create less diff noise \a\t SELECT viewname, definition FROM pg_views WHERE schemaname = 'pg_catalog' ORDER BY viewname; SELECT tablename, rulename, definition FROM pg_rules WHERE schemaname = 'pg_catalog' ORDER BY tablename, rulename; -- restore normal output mode \a\t -- -- 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; -- Check that rewrite rules splitting one INSERT into multiple -- conditional statements does not disable FK checking. create table rule_and_refint_t1 ( id1a integer, id1b integer, primary key (id1a, id1b) ); create table rule_and_refint_t2 ( id2a integer, id2c integer, primary key (id2a, id2c) ); create table rule_and_refint_t3 ( id3a integer, id3b integer, id3c integer, data text, primary key (id3a, id3b, id3c), foreign key (id3a, id3b) references rule_and_refint_t1 (id1a, id1b), foreign key (id3a, id3c) references rule_and_refint_t2 (id2a, id2c) ); insert into rule_and_refint_t1 values (1, 11); insert into rule_and_refint_t1 values (1, 12); insert into rule_and_refint_t1 values (2, 21); insert into rule_and_refint_t1 values (2, 22); insert into rule_and_refint_t2 values (1, 11); insert into rule_and_refint_t2 values (1, 12); insert into rule_and_refint_t2 values (2, 21); insert into rule_and_refint_t2 values (2, 22); insert into rule_and_refint_t3 values (1, 11, 11, 'row1'); insert into rule_and_refint_t3 values (1, 11, 12, 'row2'); insert into rule_and_refint_t3 values (1, 12, 11, 'row3'); insert into rule_and_refint_t3 values (1, 12, 12, 'row4'); insert into rule_and_refint_t3 values (1, 11, 13, 'row5'); insert into rule_and_refint_t3 values (1, 13, 11, 'row6'); -- Ordinary table insert into rule_and_refint_t3 values (1, 13, 11, 'row6') on conflict do nothing; -- rule not fired, so fk violation insert into rule_and_refint_t3 values (1, 13, 11, 'row6') on conflict (id3a, id3b, id3c) do update set id3b = excluded.id3b; -- rule fired, so unsupported insert into shoelace values ('sl9', 0, 'pink', 35.0, 'inch', 0.0) on conflict (sl_name) do update set sl_avail = excluded.sl_avail; create rule rule_and_refint_t3_ins as on insert to rule_and_refint_t3 where (exists (select 1 from rule_and_refint_t3 where (((rule_and_refint_t3.id3a = new.id3a) and (rule_and_refint_t3.id3b = new.id3b)) and (rule_and_refint_t3.id3c = new.id3c)))) do instead update rule_and_refint_t3 set data = new.data where (((rule_and_refint_t3.id3a = new.id3a) and (rule_and_refint_t3.id3b = new.id3b)) and (rule_and_refint_t3.id3c = new.id3c)); insert into rule_and_refint_t3 values (1, 11, 13, 'row7'); insert into rule_and_refint_t3 values (1, 13, 11, 'row8'); -- -- disallow dropping a view's rule (bug #5072) -- create view rules_fooview as select 'rules_foo'::text; drop rule "_RETURN" on rules_fooview; drop view rules_fooview; -- -- test conversion of table to view (needed to load some pg_dump files) -- create table rules_fooview (x int, y text); select xmin, * from rules_fooview; create rule "_RETURN" as on select to rules_fooview do instead select 1 as x, 'aaa'::text as y; select * from rules_fooview; select xmin, * from rules_fooview; -- fail, views don't have such a column select reltoastrelid, relkind, relfrozenxid from pg_class where oid = 'rules_fooview'::regclass; drop view rules_fooview; -- cannot convert an inheritance parent or child to a view, though create table rules_fooview (x int, y text); create table rules_fooview_child () inherits (rules_fooview); create rule "_RETURN" as on select to rules_fooview do instead select 1 as x, 'aaa'::text as y; create rule "_RETURN" as on select to rules_fooview_child do instead select 1 as x, 'aaa'::text as y; drop table rules_fooview cascade; -- likewise, converting a partitioned table or partition to view is not allowed create table rules_fooview (x int, y text) partition by list (x); create rule "_RETURN" as on select to rules_fooview do instead select 1 as x, 'aaa'::text as y; create table rules_fooview_part partition of rules_fooview for values in (1); create rule "_RETURN" as on select to rules_fooview_part do instead select 1 as x, 'aaa'::text as y; drop table rules_fooview; -- -- check for planner problems with complex inherited UPDATES -- create table id (id serial primary key, name text); -- currently, must respecify PKEY for each inherited subtable create table test_1 (id integer primary key) inherits (id); create table test_2 (id integer primary key) inherits (id); create table test_3 (id integer primary key) inherits (id); insert into test_1 (name) values ('Test 1'); insert into test_1 (name) values ('Test 2'); insert into test_2 (name) values ('Test 3'); insert into test_2 (name) values ('Test 4'); insert into test_3 (name) values ('Test 5'); insert into test_3 (name) values ('Test 6'); create view id_ordered as select * from id order by id; create rule update_id_ordered as on update to id_ordered do instead update id set name = new.name where id = old.id; select * from id_ordered; update id_ordered set name = 'update 2' where id = 2; update id_ordered set name = 'update 4' where id = 4; update id_ordered set name = 'update 5' where id = 5; select * from id_ordered; drop table id cascade; -- -- check corner case where an entirely-dummy subplan is created by -- constraint exclusion -- create temp table t1 (a integer primary key); create temp table t1_1 (check (a >= 0 and a < 10)) inherits (t1); create temp table t1_2 (check (a >= 10 and a < 20)) inherits (t1); create rule t1_ins_1 as on insert to t1 where new.a >= 0 and new.a < 10 do instead insert into t1_1 values (new.a); create rule t1_ins_2 as on insert to t1 where new.a >= 10 and new.a < 20 do instead insert into t1_2 values (new.a); create rule t1_upd_1 as on update to t1 where old.a >= 0 and old.a < 10 do instead update t1_1 set a = new.a where a = old.a; create rule t1_upd_2 as on update to t1 where old.a >= 10 and old.a < 20 do instead update t1_2 set a = new.a where a = old.a; set constraint_exclusion = on; insert into t1 select * from generate_series(5,19,1) g; update t1 set a = 4 where a = 5; select * from only t1; select * from only t1_1; select * from only t1_2; reset constraint_exclusion; -- test FOR UPDATE in rules create table rules_base(f1 int, f2 int); insert into rules_base values(1,2), (11,12); create rule r1 as on update to rules_base do instead select * from rules_base where f1 = 1 for update; update rules_base set f2 = f2 + 1; create or replace rule r1 as on update to rules_base do instead select * from rules_base where f1 = 11 for update of rules_base; update rules_base set f2 = f2 + 1; create or replace rule r1 as on update to rules_base do instead select * from rules_base where f1 = 11 for update of old; -- error drop table rules_base; -- test various flavors of pg_get_viewdef() select pg_get_viewdef('shoe'::regclass) as unpretty; select pg_get_viewdef('shoe'::regclass,true) as pretty; select pg_get_viewdef('shoe'::regclass,0) as prettier; -- -- check multi-row VALUES in rules -- create table rules_src(f1 int, f2 int); create table rules_log(f1 int, f2 int, tag text); insert into rules_src values(1,2), (11,12); create rule r1 as on update to rules_src do also insert into rules_log values(old.*, 'old'), (new.*, 'new'); update rules_src set f2 = f2 + 1; update rules_src set f2 = f2 * 10; select * from rules_src; select * from rules_log; create rule r2 as on update to rules_src do also values(old.*, 'old'), (new.*, 'new'); update rules_src set f2 = f2 / 10; select * from rules_src; select * from rules_log; create rule r3 as on delete to rules_src do notify rules_src_deletion; \d+ rules_src -- -- Ensure an aliased target relation for insert is correctly deparsed. -- create rule r4 as on insert to rules_src do instead insert into rules_log AS trgt SELECT NEW.* RETURNING trgt.f1, trgt.f2; create rule r5 as on update to rules_src do instead UPDATE rules_log AS trgt SET tag = 'updated' WHERE trgt.f1 = new.f1; \d+ rules_src -- -- Also check multiassignment deparsing. -- create table rule_t1(f1 int, f2 int); create table rule_dest(f1 int, f2 int[], tag text); create rule rr as on update to rule_t1 do instead UPDATE rule_dest trgt SET (f2[1], f1, tag) = (SELECT new.f2, new.f1, 'updated'::varchar) WHERE trgt.f1 = new.f1 RETURNING new.*; \d+ rule_t1 drop table rule_t1, rule_dest; -- -- check alter rename rule -- CREATE TABLE rule_t1 (a INT); CREATE VIEW rule_v1 AS SELECT * FROM rule_t1; CREATE RULE InsertRule AS ON INSERT TO rule_v1 DO INSTEAD INSERT INTO rule_t1 VALUES(new.a); ALTER RULE InsertRule ON rule_v1 RENAME to NewInsertRule; INSERT INTO rule_v1 VALUES(1); SELECT * FROM rule_v1; \d+ rule_v1 -- -- error conditions for alter rename rule -- ALTER RULE InsertRule ON rule_v1 RENAME TO NewInsertRule; -- doesn't exist ALTER RULE NewInsertRule ON rule_v1 RENAME TO "_RETURN"; -- already exists ALTER RULE "_RETURN" ON rule_v1 RENAME TO abc; -- ON SELECT rule cannot be renamed DROP VIEW rule_v1; DROP TABLE rule_t1; -- -- check display of VALUES in view definitions -- create view rule_v1 as values(1,2); \d+ rule_v1 alter table rule_v1 rename column column2 to q2; \d+ rule_v1 drop view rule_v1; create view rule_v1(x) as values(1,2); \d+ rule_v1 drop view rule_v1; create view rule_v1(x) as select * from (values(1,2)) v; \d+ rule_v1 drop view rule_v1; create view rule_v1(x) as select * from (values(1,2)) v(q,w); \d+ rule_v1 drop view rule_v1; -- -- Check DO INSTEAD rules with ON CONFLICT -- CREATE TABLE hats ( hat_name char(10) primary key, hat_color char(10) -- hat color ); CREATE TABLE hat_data ( hat_name char(10), hat_color char(10) -- hat color ); create unique index hat_data_unique_idx on hat_data (hat_name COLLATE "C" bpchar_pattern_ops); -- DO NOTHING with ON CONFLICT CREATE RULE hat_nosert AS ON INSERT TO hats DO INSTEAD INSERT INTO hat_data VALUES ( NEW.hat_name, NEW.hat_color) ON CONFLICT (hat_name COLLATE "C" bpchar_pattern_ops) WHERE hat_color = 'green' DO NOTHING RETURNING *; SELECT definition FROM pg_rules WHERE tablename = 'hats' ORDER BY rulename; -- Works (projects row) INSERT INTO hats VALUES ('h7', 'black') RETURNING *; -- Works (does nothing) INSERT INTO hats VALUES ('h7', 'black') RETURNING *; SELECT tablename, rulename, definition FROM pg_rules WHERE tablename = 'hats'; DROP RULE hat_nosert ON hats; -- DO NOTHING without ON CONFLICT CREATE RULE hat_nosert_all AS ON INSERT TO hats DO INSTEAD INSERT INTO hat_data VALUES ( NEW.hat_name, NEW.hat_color) ON CONFLICT DO NOTHING RETURNING *; SELECT definition FROM pg_rules WHERE tablename = 'hats' ORDER BY rulename; DROP RULE hat_nosert_all ON hats; -- Works (does nothing) INSERT INTO hats VALUES ('h7', 'black') RETURNING *; -- DO UPDATE with a WHERE clause CREATE RULE hat_upsert AS ON INSERT TO hats DO INSTEAD INSERT INTO hat_data VALUES ( NEW.hat_name, NEW.hat_color) ON CONFLICT (hat_name) DO UPDATE SET hat_name = hat_data.hat_name, hat_color = excluded.hat_color WHERE excluded.hat_color <> 'forbidden' AND hat_data.* != excluded.* RETURNING *; SELECT definition FROM pg_rules WHERE tablename = 'hats' ORDER BY rulename; -- Works (does upsert) INSERT INTO hats VALUES ('h8', 'black') RETURNING *; SELECT * FROM hat_data WHERE hat_name = 'h8'; INSERT INTO hats VALUES ('h8', 'white') RETURNING *; SELECT * FROM hat_data WHERE hat_name = 'h8'; INSERT INTO hats VALUES ('h8', 'forbidden') RETURNING *; SELECT * FROM hat_data WHERE hat_name = 'h8'; SELECT tablename, rulename, definition FROM pg_rules WHERE tablename = 'hats'; -- ensure explain works for on insert conflict rules explain (costs off) INSERT INTO hats VALUES ('h8', 'forbidden') RETURNING *; -- ensure upserting into a rule, with a CTE (different offsets!) works WITH data(hat_name, hat_color) AS MATERIALIZED ( VALUES ('h8', 'green'), ('h9', 'blue'), ('h7', 'forbidden') ) INSERT INTO hats SELECT * FROM data RETURNING *; EXPLAIN (costs off) WITH data(hat_name, hat_color) AS MATERIALIZED ( VALUES ('h8', 'green'), ('h9', 'blue'), ('h7', 'forbidden') ) INSERT INTO hats SELECT * FROM data RETURNING *; SELECT * FROM hat_data WHERE hat_name IN ('h8', 'h9', 'h7') ORDER BY hat_name; DROP RULE hat_upsert ON hats; drop table hats; drop table hat_data; -- test for pg_get_functiondef properly regurgitating SET parameters -- Note that the function is kept around to stress pg_dump. CREATE FUNCTION func_with_set_params() RETURNS integer AS 'select 1;' LANGUAGE SQL SET search_path TO PG_CATALOG SET extra_float_digits TO 2 SET work_mem TO '4MB' SET datestyle to iso, mdy SET local_preload_libraries TO "Mixed/Case", 'c:/''a"/path', '', '0123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789' IMMUTABLE STRICT; SELECT pg_get_functiondef('func_with_set_params()'::regprocedure); -- tests for pg_get_*def with invalid objects SELECT pg_get_constraintdef(0); SELECT pg_get_functiondef(0); SELECT pg_get_indexdef(0); SELECT pg_get_ruledef(0); SELECT pg_get_statisticsobjdef(0); SELECT pg_get_triggerdef(0); SELECT pg_get_viewdef(0); SELECT pg_get_function_arguments(0); SELECT pg_get_function_identity_arguments(0); SELECT pg_get_function_result(0); SELECT pg_get_function_arg_default(0, 0); SELECT pg_get_function_arg_default('pg_class'::regclass, 0); SELECT pg_get_partkeydef(0); -- test rename for a rule defined on a partitioned table CREATE TABLE rules_parted_table (a int) PARTITION BY LIST (a); CREATE TABLE rules_parted_table_1 PARTITION OF rules_parted_table FOR VALUES IN (1); CREATE RULE rules_parted_table_insert AS ON INSERT to rules_parted_table DO INSTEAD INSERT INTO rules_parted_table_1 VALUES (NEW.*); ALTER RULE rules_parted_table_insert ON rules_parted_table RENAME TO rules_parted_table_insert_redirect; DROP TABLE rules_parted_table; -- -- test MERGE -- CREATE TABLE rule_merge1 (a int, b text); CREATE TABLE rule_merge2 (a int, b text); CREATE RULE rule1 AS ON INSERT TO rule_merge1 DO INSTEAD INSERT INTO rule_merge2 VALUES (NEW.*); CREATE RULE rule2 AS ON UPDATE TO rule_merge1 DO INSTEAD UPDATE rule_merge2 SET a = NEW.a, b = NEW.b WHERE a = OLD.a; CREATE RULE rule3 AS ON DELETE TO rule_merge1 DO INSTEAD DELETE FROM rule_merge2 WHERE a = OLD.a; -- MERGE not supported for table with rules MERGE INTO rule_merge1 t USING (SELECT 1 AS a) s ON t.a = s.a WHEN MATCHED AND t.a < 2 THEN UPDATE SET b = b || ' updated by merge' WHEN MATCHED AND t.a > 2 THEN DELETE WHEN NOT MATCHED THEN INSERT VALUES (s.a, ''); -- should be ok with the other table though MERGE INTO rule_merge2 t USING (SELECT 1 AS a) s ON t.a = s.a WHEN MATCHED AND t.a < 2 THEN UPDATE SET b = b || ' updated by merge' WHEN MATCHED AND t.a > 2 THEN DELETE WHEN NOT MATCHED THEN INSERT VALUES (s.a, ''); -- -- Test enabling/disabling -- CREATE TABLE ruletest1 (a int); CREATE TABLE ruletest2 (b int); CREATE RULE rule1 AS ON INSERT TO ruletest1 DO INSTEAD INSERT INTO ruletest2 VALUES (NEW.*); INSERT INTO ruletest1 VALUES (1); ALTER TABLE ruletest1 DISABLE RULE rule1; INSERT INTO ruletest1 VALUES (2); ALTER TABLE ruletest1 ENABLE RULE rule1; SET session_replication_role = replica; INSERT INTO ruletest1 VALUES (3); ALTER TABLE ruletest1 ENABLE REPLICA RULE rule1; INSERT INTO ruletest1 VALUES (4); RESET session_replication_role; INSERT INTO ruletest1 VALUES (5); SELECT * FROM ruletest1; SELECT * FROM ruletest2; DROP TABLE ruletest1; DROP TABLE ruletest2; -- -- Test non-SELECT rule on security invoker view. -- Should use view owner's permissions. -- CREATE USER regress_rule_user1; CREATE TABLE ruletest_t1 (x int); CREATE TABLE ruletest_t2 (x int); CREATE VIEW ruletest_v1 WITH (security_invoker=true) AS SELECT * FROM ruletest_t1; GRANT INSERT ON ruletest_v1 TO regress_rule_user1; CREATE RULE rule1 AS ON INSERT TO ruletest_v1 DO INSTEAD INSERT INTO ruletest_t2 VALUES (NEW.*); SET SESSION AUTHORIZATION regress_rule_user1; INSERT INTO ruletest_v1 VALUES (1); RESET SESSION AUTHORIZATION; SELECT * FROM ruletest_t1; SELECT * FROM ruletest_t2; DROP VIEW ruletest_v1; DROP TABLE ruletest_t2; DROP TABLE ruletest_t1; DROP USER regress_rule_user1;