--- /dev/null
+QUERY: create table pkeys (pkey1 int4 not null, pkey2 text not null);
+QUERY: create table fkeys (fkey1 int4, fkey2 text, fkey3 int);
+QUERY: create table fkeys2 (fkey21 int4, fkey22 text, pkey23 int not null);
+QUERY: create index fkeys_i on fkeys (fkey1, fkey2);
+QUERY: create index fkeys2_i on fkeys2 (fkey21, fkey22);
+QUERY: create index fkeys2p_i on fkeys2 (pkey23);
+QUERY: insert into pkeys values (10, '1');
+QUERY: insert into pkeys values (20, '2');
+QUERY: insert into pkeys values (30, '3');
+QUERY: insert into pkeys values (40, '4');
+QUERY: insert into pkeys values (50, '5');
+QUERY: insert into pkeys values (60, '6');
+QUERY: create unique index pkeys_i on pkeys (pkey1, pkey2);
+QUERY: create trigger check_fkeys_pkey_exist
+ before insert or update on fkeys
+ for each row
+ execute procedure
+ check_primary_key ('fkey1', 'fkey2', 'pkeys', 'pkey1', 'pkey2');
+QUERY: create trigger check_fkeys_pkey2_exist
+ before insert or update on fkeys
+ for each row
+ execute procedure check_primary_key ('fkey3', 'fkeys2', 'pkey23');
+QUERY: create trigger check_fkeys2_pkey_exist
+ before insert or update on fkeys2
+ for each row
+ execute procedure
+ check_primary_key ('fkey21', 'fkey22', 'pkeys', 'pkey1', 'pkey2');
+QUERY: create trigger check_pkeys_fkey_cascade
+ before delete or update on pkeys
+ for each row
+ execute procedure
+ check_foreign_key (2, 'cascade', 'pkey1', 'pkey2',
+ 'fkeys', 'fkey1', 'fkey2', 'fkeys2', 'fkey21', 'fkey22');
+QUERY: create trigger check_fkeys2_fkey_restrict
+ before delete or update on fkeys2
+ for each row
+ execute procedure check_foreign_key (1, 'restrict', 'pkey23', 'fkeys', 'fkey3');
+QUERY: insert into fkeys2 values (10, '1', 1);
+QUERY: insert into fkeys2 values (30, '3', 2);
+QUERY: insert into fkeys2 values (40, '4', 5);
+QUERY: insert into fkeys2 values (50, '5', 3);
+QUERY: insert into fkeys2 values (70, '5', 3);
+WARN:check_fkeys2_pkey_exist: tuple references non-existing key in pkeys
+QUERY: insert into fkeys values (10, '1', 2);
+QUERY: insert into fkeys values (30, '3', 3);
+QUERY: insert into fkeys values (40, '4', 2);
+QUERY: insert into fkeys values (50, '5', 2);
+QUERY: insert into fkeys values (70, '5', 1);
+WARN:check_fkeys_pkey_exist: tuple references non-existing key in pkeys
+QUERY: insert into fkeys values (60, '6', 4);
+WARN:check_fkeys_pkey2_exist: tuple references non-existing key in fkeys2
+QUERY: delete from pkeys where pkey1 = 30 and pkey2 = '3';
+NOTICE:check_pkeys_fkey_cascade: 1 tuple(s) of fkeys are deleted
+WARN:check_fkeys2_fkey_restrict: tuple referenced in fkeys
+QUERY: delete from pkeys where pkey1 = 40 and pkey2 = '4';
+NOTICE:check_pkeys_fkey_cascade: 1 tuple(s) of fkeys are deleted
+NOTICE:check_pkeys_fkey_cascade: 1 tuple(s) of fkeys2 are deleted
+QUERY: update pkeys set pkey1 = 7, pkey2 = '70' where pkey1 = 50 and pkey2 = '5';
+NOTICE:check_pkeys_fkey_cascade: 1 tuple(s) of fkeys are deleted
+WARN:check_fkeys2_fkey_restrict: tuple referenced in fkeys
+QUERY: update pkeys set pkey1 = 7, pkey2 = '70' where pkey1 = 10 and pkey2 = '1';
+NOTICE:check_pkeys_fkey_cascade: 1 tuple(s) of fkeys are deleted
+NOTICE:check_pkeys_fkey_cascade: 1 tuple(s) of fkeys2 are deleted
+QUERY: DROP TABLE pkeys;
+QUERY: DROP TABLE fkeys;
+QUERY: DROP TABLE fkeys2;
+QUERY: create table dup17 (x int4);
+QUERY: create trigger dup17_before
+ before insert on dup17
+ for each row
+ execute procedure
+ funny_dup17 ()
+;
+QUERY: insert into dup17 values (17);
+NOTICE:funny_dup17 (fired BEFORE) on level 1: 0/0 tuples inserted/selected
+QUERY: select count(*) from dup17;
+count
+-----
+ 1
+(1 row)
+
+QUERY: insert into dup17 values (17);
+NOTICE:funny_dup17 (fired BEFORE) on level 17: 1/2 tuples inserted/selected
+NOTICE:funny_dup17 (fired BEFORE) on level 16: 1/3 tuples inserted/selected
+NOTICE:funny_dup17 (fired BEFORE) on level 15: 1/4 tuples inserted/selected
+NOTICE:funny_dup17 (fired BEFORE) on level 14: 1/5 tuples inserted/selected
+NOTICE:funny_dup17 (fired BEFORE) on level 13: 1/6 tuples inserted/selected
+NOTICE:funny_dup17 (fired BEFORE) on level 12: 1/7 tuples inserted/selected
+NOTICE:funny_dup17 (fired BEFORE) on level 11: 1/8 tuples inserted/selected
+NOTICE:funny_dup17 (fired BEFORE) on level 10: 1/9 tuples inserted/selected
+NOTICE:funny_dup17 (fired BEFORE) on level 9: 1/10 tuples inserted/selected
+NOTICE:funny_dup17 (fired BEFORE) on level 8: 1/11 tuples inserted/selected
+NOTICE:funny_dup17 (fired BEFORE) on level 7: 1/12 tuples inserted/selected
+NOTICE:funny_dup17 (fired BEFORE) on level 6: 1/13 tuples inserted/selected
+NOTICE:funny_dup17 (fired BEFORE) on level 5: 1/14 tuples inserted/selected
+NOTICE:funny_dup17 (fired BEFORE) on level 4: 1/15 tuples inserted/selected
+NOTICE:funny_dup17 (fired BEFORE) on level 3: 1/16 tuples inserted/selected
+NOTICE:funny_dup17 (fired BEFORE) on level 2: 1/17 tuples inserted/selected
+NOTICE:funny_dup17 (fired BEFORE) on level 1: 1/18 tuples inserted/selected
+QUERY: select count(*) from dup17;
+count
+-----
+ 19
+(1 row)
+
+QUERY: drop trigger dup17_before on dup17;
+QUERY: create trigger dup17_after
+ after insert on dup17
+ for each row
+ execute procedure
+ funny_dup17 ()
+;
+QUERY: insert into dup17 values (13);
+NOTICE:funny_dup17 (fired AFTER ) on level 17: 17/34 tuples inserted/selected
+NOTICE:funny_dup17 (fired AFTER ) on level 16: 16/49 tuples inserted/selected
+NOTICE:funny_dup17 (fired AFTER ) on level 15: 15/63 tuples inserted/selected
+NOTICE:funny_dup17 (fired AFTER ) on level 14: 14/76 tuples inserted/selected
+NOTICE:funny_dup17 (fired AFTER ) on level 13: 13/88 tuples inserted/selected
+NOTICE:funny_dup17 (fired AFTER ) on level 12: 12/99 tuples inserted/selected
+NOTICE:funny_dup17 (fired AFTER ) on level 11: 11/109 tuples inserted/selected
+NOTICE:funny_dup17 (fired AFTER ) on level 10: 10/118 tuples inserted/selected
+NOTICE:funny_dup17 (fired AFTER ) on level 9: 9/126 tuples inserted/selected
+NOTICE:funny_dup17 (fired AFTER ) on level 8: 8/133 tuples inserted/selected
+NOTICE:funny_dup17 (fired AFTER ) on level 7: 7/139 tuples inserted/selected
+NOTICE:funny_dup17 (fired AFTER ) on level 6: 6/144 tuples inserted/selected
+NOTICE:funny_dup17 (fired AFTER ) on level 5: 5/148 tuples inserted/selected
+NOTICE:funny_dup17 (fired AFTER ) on level 4: 4/151 tuples inserted/selected
+NOTICE:funny_dup17 (fired AFTER ) on level 3: 3/153 tuples inserted/selected
+NOTICE:funny_dup17 (fired AFTER ) on level 2: 2/154 tuples inserted/selected
+NOTICE:funny_dup17 (fired AFTER ) on level 1: 1/154 tuples inserted/selected
+QUERY: select count(*) from dup17 where x = 13;
+count
+-----
+ 154
+(1 row)
+
+QUERY: insert into dup17 values (13);
+NOTICE:funny_dup17 (fired AFTER ) on level 17: 171/342 tuples inserted/selected
+NOTICE:funny_dup17 (fired AFTER ) on level 16: 170/511 tuples inserted/selected
+NOTICE:funny_dup17 (fired AFTER ) on level 15: 169/679 tuples inserted/selected
+NOTICE:funny_dup17 (fired AFTER ) on level 14: 168/846 tuples inserted/selected
+NOTICE:funny_dup17 (fired AFTER ) on level 13: 167/1012 tuples inserted/selected
+NOTICE:funny_dup17 (fired AFTER ) on level 12: 166/1177 tuples inserted/selected
+NOTICE:funny_dup17 (fired AFTER ) on level 11: 165/1341 tuples inserted/selected
+NOTICE:funny_dup17 (fired AFTER ) on level 10: 164/1504 tuples inserted/selected
+NOTICE:funny_dup17 (fired AFTER ) on level 9: 163/1666 tuples inserted/selected
+NOTICE:funny_dup17 (fired AFTER ) on level 8: 162/1827 tuples inserted/selected
+NOTICE:funny_dup17 (fired AFTER ) on level 7: 161/1987 tuples inserted/selected
+NOTICE:funny_dup17 (fired AFTER ) on level 6: 160/2146 tuples inserted/selected
+NOTICE:funny_dup17 (fired AFTER ) on level 5: 159/2304 tuples inserted/selected
+NOTICE:funny_dup17 (fired AFTER ) on level 4: 158/2461 tuples inserted/selected
+NOTICE:funny_dup17 (fired AFTER ) on level 3: 157/2617 tuples inserted/selected
+NOTICE:funny_dup17 (fired AFTER ) on level 2: 156/2772 tuples inserted/selected
+NOTICE:funny_dup17 (fired AFTER ) on level 1: 155/2926 tuples inserted/selected
+QUERY: select count(*) from dup17 where x = 13;
+count
+-----
+ 2926
+(1 row)
+
+QUERY: DROP TABLE dup17;
/*
- * $Header: /cvsroot/pgsql/src/test/regress/regress.c,v 1.13 1997/09/08 21:56:01 momjian Exp $
+ * $Header: /cvsroot/pgsql/src/test/regress/regress.c,v 1.14 1997/09/11 09:13:28 vadim Exp $
*/
#include <float.h> /* faked on sunos */
new_string[len - i] = string[i];
return (new_string);
}
+
+#include "executor/spi.h" /* this is what you need to work with SPI */
+#include "commands/trigger.h" /* -"- and triggers */
+
+static TransactionId fd17b_xid = InvalidTransactionId;
+static TransactionId fd17a_xid = InvalidTransactionId;
+static int fd17b_level = 0;
+static int fd17a_level = 0;
+static bool fd17b_recursion = true;
+static bool fd17a_recursion = true;
+HeapTuple funny_dup17(void);
+
+HeapTuple /* have to return HeapTuple to Executor */
+funny_dup17()
+{
+ TransactionId *xid;
+ int *level;
+ bool *recursion;
+ Relation rel;
+ TupleDesc tupdesc;
+ HeapTuple tuple;
+ char sql[8192];
+ char *when;
+ int inserted;
+ int selected = 0;
+ int ret;
+
+ tuple = CurrentTriggerData->tg_trigtuple;
+ rel = CurrentTriggerData->tg_relation;
+ tupdesc = rel->rd_att;
+ if (TRIGGER_FIRED_BEFORE(CurrentTriggerData->tg_event))
+ {
+ xid = &fd17b_xid;
+ level = &fd17b_level;
+ recursion = &fd17b_recursion;
+ when = "BEFORE";
+ }
+ else
+ {
+ xid = &fd17a_xid;
+ level = &fd17a_level;
+ recursion = &fd17a_recursion;
+ when = "AFTER ";
+ }
+
+ CurrentTriggerData = NULL;
+
+ if (!TransactionIdIsCurrentTransactionId(*xid))
+ {
+ *xid = GetCurrentTransactionId();
+ *level = 0;
+ *recursion = true;
+ }
+
+ if (*level == 17)
+ {
+ *recursion = false;
+ return (tuple);
+ }
+
+ if (!(*recursion))
+ return (tuple);
+
+ (*level)++;
+
+ SPI_connect();
+
+ sprintf(sql, "insert into %s select * from %s where %s = '%s'::%s",
+ SPI_getrelname(rel), SPI_getrelname(rel),
+ SPI_fname(tupdesc, 1),
+ SPI_getvalue(tuple, tupdesc, 1),
+ SPI_gettype(tupdesc, 1));
+
+ if ((ret = SPI_exec(sql, 0)) < 0)
+ elog(WARN, "funny_dup17 (fired %s) on level %3d: SPI_exec (insert ...) returned %d",
+ when, *level, ret);
+
+ inserted = SPI_processed;
+
+ sprintf(sql, "select count (*) from %s where %s = '%s'::%s",
+ SPI_getrelname(rel),
+ SPI_fname(tupdesc, 1),
+ SPI_getvalue(tuple, tupdesc, 1),
+ SPI_gettype(tupdesc, 1));
+
+ if ((ret = SPI_exec(sql, 0)) < 0)
+ elog(WARN, "funny_dup17 (fired %s) on level %3d: SPI_exec (select ...) returned %d",
+ when, *level, ret);
+
+ if (SPI_processed > 0)
+ {
+ selected =
+ int4in(
+ SPI_getvalue(
+ SPI_tuptable->vals[0],
+ SPI_tuptable->tupdesc,
+ 1
+ )
+ );
+ }
+
+ elog(NOTICE, "funny_dup17 (fired %s) on level %3d: %d/%d tuples inserted/selected",
+ when, *level, inserted, selected);
+
+ SPI_finish();
+
+ (*level)--;
+
+ if (*level == 0)
+ *xid = InvalidTransactionId;
+
+ return (tuple);
+}
--- /dev/null
+
+create table pkeys (pkey1 int4 not null, pkey2 text not null);
+create table fkeys (fkey1 int4, fkey2 text, fkey3 int);
+create table fkeys2 (fkey21 int4, fkey22 text, pkey23 int not null);
+
+create index fkeys_i on fkeys (fkey1, fkey2);
+create index fkeys2_i on fkeys2 (fkey21, fkey22);
+create index fkeys2p_i on fkeys2 (pkey23);
+
+insert into pkeys values (10, '1');
+insert into pkeys values (20, '2');
+insert into pkeys values (30, '3');
+insert into pkeys values (40, '4');
+insert into pkeys values (50, '5');
+insert into pkeys values (60, '6');
+create unique index pkeys_i on pkeys (pkey1, pkey2);
+
+--
+-- For fkeys:
+-- (fkey1, fkey2) --> pkeys (pkey1, pkey2)
+-- (fkey3) --> fkeys2 (pkey23)
+--
+create trigger check_fkeys_pkey_exist
+ before insert or update on fkeys
+ for each row
+ execute procedure
+ check_primary_key ('fkey1', 'fkey2', 'pkeys', 'pkey1', 'pkey2');
+
+create trigger check_fkeys_pkey2_exist
+ before insert or update on fkeys
+ for each row
+ execute procedure check_primary_key ('fkey3', 'fkeys2', 'pkey23');
+
+--
+-- For fkeys2:
+-- (fkey21, fkey22) --> pkeys (pkey1, pkey2)
+--
+create trigger check_fkeys2_pkey_exist
+ before insert or update on fkeys2
+ for each row
+ execute procedure
+ check_primary_key ('fkey21', 'fkey22', 'pkeys', 'pkey1', 'pkey2');
+
+--
+-- For pkeys:
+-- ON DELETE/UPDATE (pkey1, pkey2) CASCADE:
+-- fkeys (fkey1, fkey2) and fkeys2 (fkey21, fkey22)
+--
+create trigger check_pkeys_fkey_cascade
+ before delete or update on pkeys
+ for each row
+ execute procedure
+ check_foreign_key (2, 'cascade', 'pkey1', 'pkey2',
+ 'fkeys', 'fkey1', 'fkey2', 'fkeys2', 'fkey21', 'fkey22');
+
+--
+-- For fkeys2:
+-- ON DELETE/UPDATE (pkey23) RESTRICT:
+-- fkeys (fkey3)
+--
+create trigger check_fkeys2_fkey_restrict
+ before delete or update on fkeys2
+ for each row
+ execute procedure check_foreign_key (1, 'restrict', 'pkey23', 'fkeys', 'fkey3');
+
+insert into fkeys2 values (10, '1', 1);
+insert into fkeys2 values (30, '3', 2);
+insert into fkeys2 values (40, '4', 5);
+insert into fkeys2 values (50, '5', 3);
+-- no key in pkeys
+insert into fkeys2 values (70, '5', 3);
+
+insert into fkeys values (10, '1', 2);
+insert into fkeys values (30, '3', 3);
+insert into fkeys values (40, '4', 2);
+insert into fkeys values (50, '5', 2);
+-- no key in pkeys
+insert into fkeys values (70, '5', 1);
+-- no key in fkeys2
+insert into fkeys values (60, '6', 4);
+
+delete from pkeys where pkey1 = 30 and pkey2 = '3';
+delete from pkeys where pkey1 = 40 and pkey2 = '4';
+update pkeys set pkey1 = 7, pkey2 = '70' where pkey1 = 50 and pkey2 = '5';
+update pkeys set pkey1 = 7, pkey2 = '70' where pkey1 = 10 and pkey2 = '1';
+
+DROP TABLE pkeys;
+DROP TABLE fkeys;
+DROP TABLE fkeys2;
+
+create table dup17 (x int4);
+
+create trigger dup17_before
+ before insert on dup17
+ for each row
+ execute procedure
+ funny_dup17 ()
+;
+
+insert into dup17 values (17);
+select count(*) from dup17;
+insert into dup17 values (17);
+select count(*) from dup17;
+
+drop trigger dup17_before on dup17;
+
+create trigger dup17_after
+ after insert on dup17
+ for each row
+ execute procedure
+ funny_dup17 ()
+;
+insert into dup17 values (13);
+select count(*) from dup17 where x = 13;
+insert into dup17 values (13);
+select count(*) from dup17 where x = 13;
+
+DROP TABLE dup17;
projects / postgresql / commitdiff