insert into T_pkey1 values (1, 'key1-1', 'test key'); insert into T_pkey1 values (1, 'key1-2', 'test key'); insert into T_pkey1 values (1, 'key1-3', 'test key'); insert into T_pkey1 values (2, 'key2-1', 'test key'); insert into T_pkey1 values (2, 'key2-2', 'test key'); insert into T_pkey1 values (2, 'key2-3', 'test key'); insert into T_pkey2 values (1, 'key1-1', 'test key'); insert into T_pkey2 values (1, 'key1-2', 'test key'); insert into T_pkey2 values (1, 'key1-3', 'test key'); insert into T_pkey2 values (2, 'key2-1', 'test key'); insert into T_pkey2 values (2, 'key2-2', 'test key'); insert into T_pkey2 values (2, 'key2-3', 'test key'); select * from T_pkey1; key1 | key2 | txt ------+----------------------+------------------------------------------ 1 | key1-1 | test key 1 | key1-2 | test key 1 | key1-3 | test key 2 | key2-1 | test key 2 | key2-2 | test key 2 | key2-3 | test key (6 rows) select * from T_pkey2; key1 | key2 | txt ------+----------------------+------------------------------------------ 1 | KEY1-1 | test key 1 | KEY1-2 | test key 1 | KEY1-3 | test key 2 | KEY2-1 | test key 2 | KEY2-2 | test key 2 | KEY2-3 | test key (6 rows) insert into T_pkey1 values (1, 'KEY1-3', 'should work'); insert into T_pkey2 values (1, 'KEY1-3', 'should fail'); ERROR: duplicate key '1', 'KEY1-3' for T_pkey2 insert into T_dta1 values ('trec 1', 1, 'key1-1'); insert into T_dta1 values ('trec 2', 1, 'key1-2'); insert into T_dta1 values ('trec 3', 1, 'key1-3'); insert into T_dta1 values ('trec 4', 1, 'key1-4'); ERROR: key for t_dta1 not in t_pkey1 insert into T_dta2 values ('trec 1', 1, 'KEY1-1'); insert into T_dta2 values ('trec 2', 1, 'KEY1-2'); insert into T_dta2 values ('trec 3', 1, 'KEY1-3'); insert into T_dta2 values ('trec 4', 1, 'KEY1-4'); ERROR: key for t_dta2 not in t_pkey2 select * from T_dta1; tkey | ref1 | ref2 ------------+------+---------------------- trec 1 | 1 | key1-1 trec 2 | 1 | key1-2 trec 3 | 1 | key1-3 (3 rows) select * from T_dta2; tkey | ref1 | ref2 ------------+------+---------------------- trec 1 | 1 | KEY1-1 trec 2 | 1 | KEY1-2 trec 3 | 1 | KEY1-3 (3 rows) update T_pkey1 set key2 = 'key2-9' where key1 = 2 and key2 = 'key2-1'; update T_pkey1 set key2 = 'key1-9' where key1 = 1 and key2 = 'key1-1'; ERROR: key '1', 'key1-1 ' referenced by T_dta1 delete from T_pkey1 where key1 = 2 and key2 = 'key2-2'; delete from T_pkey1 where key1 = 1 and key2 = 'key1-2'; ERROR: key '1', 'key1-2 ' referenced by T_dta1 update T_pkey2 set key2 = 'KEY2-9' where key1 = 2 and key2 = 'KEY2-1'; update T_pkey2 set key2 = 'KEY1-9' where key1 = 1 and key2 = 'KEY1-1'; NOTICE: updated 1 entries in T_dta2 for new key in T_pkey2 delete from T_pkey2 where key1 = 2 and key2 = 'KEY2-2'; delete from T_pkey2 where key1 = 1 and key2 = 'KEY1-2'; NOTICE: deleted 1 entries from T_dta2 select * from T_pkey1; key1 | key2 | txt ------+----------------------+------------------------------------------ 1 | key1-1 | test key 1 | key1-2 | test key 1 | key1-3 | test key 2 | key2-3 | test key 1 | KEY1-3 | should work 2 | key2-9 | test key (6 rows) select * from T_pkey2; key1 | key2 | txt ------+----------------------+------------------------------------------ 1 | KEY1-3 | test key 2 | KEY2-3 | test key 2 | KEY2-9 | test key 1 | KEY1-9 | test key (4 rows) select * from T_dta1; tkey | ref1 | ref2 ------------+------+---------------------- trec 1 | 1 | key1-1 trec 2 | 1 | key1-2 trec 3 | 1 | key1-3 (3 rows) select * from T_dta2; tkey | ref1 | ref2 ------------+------+---------------------- trec 3 | 1 | KEY1-3 trec 1 | 1 | KEY1-9 (2 rows) select tcl_avg(key1) from T_pkey1; tcl_avg --------- 1 (1 row) select tcl_sum(key1) from T_pkey1; tcl_sum --------- 8 (1 row) select tcl_avg(key1) from T_pkey2; tcl_avg --------- 1 (1 row) select tcl_sum(key1) from T_pkey2; tcl_sum --------- 6 (1 row) select tcl_avg(key1) from T_pkey1 where key1 = 99; tcl_avg --------- (1 row) select tcl_sum(key1) from T_pkey1 where key1 = 99; tcl_sum --------- 0 (1 row) select 1 @< 2; ?column? ---------- t (1 row) select 100 @< 4; ?column? ---------- f (1 row) select * from T_pkey1 order by key1 using @<, key2; key1 | key2 | txt ------+----------------------+------------------------------------------ 1 | KEY1-3 | should work 1 | key1-1 | test key 1 | key1-2 | test key 1 | key1-3 | test key 2 | key2-3 | test key 2 | key2-9 | test key (6 rows) select * from T_pkey2 order by key1 using @<, key2; key1 | key2 | txt ------+----------------------+------------------------------------------ 1 | KEY1-3 | test key 1 | KEY1-9 | test key 2 | KEY2-3 | test key 2 | KEY2-9 | test key (4 rows)