CREATE TRIGGER insert_measurement_trigger
BEFORE INSERT ON measurement
- FOR EACH ROW EXECUTE PROCEDURE measurement_insert_trigger();
+ FOR EACH ROW EXECUTE FUNCTION measurement_insert_trigger();
We must redefine the trigger function each month so that it always
AS 'noddl' LANGUAGE C;
CREATE EVENT TRIGGER noddl ON ddl_command_start
- EXECUTE PROCEDURE noddl();
+ EXECUTE FUNCTION noddl();
CREATE EVENT TRIGGER no_rewrite_allowed
ON table_rewrite
- EXECUTE PROCEDURE no_rewrite();
+ EXECUTE FUNCTION no_rewrite();
CREATE TRIGGER z_min_update
BEFORE UPDATE ON tablename
-FOR EACH ROW EXECUTE PROCEDURE suppress_redundant_updates_trigger();
+FOR EACH ROW EXECUTE FUNCTION suppress_redundant_updates_trigger();
In most cases, you would want to fire this trigger last for each row.
Bearing in mind that triggers fire in name order, you would then
$$;
CREATE EVENT TRIGGER test_event_trigger_for_drops
ON sql_drop
- EXECUTE PROCEDURE test_event_trigger_for_drops();
+ EXECUTE FUNCTION test_event_trigger_for_drops();
CREATE EVENT TRIGGER test_table_rewrite_oid
ON table_rewrite
- EXECUTE PROCEDURE test_event_trigger_table_rewrite_oid();
+ EXECUTE FUNCTION test_event_trigger_table_rewrite_oid();
character_data
Statement that is executed by the trigger (currently always
- EXECUTE PROCEDURE
+ EXECUTE FUNCTION
function(...))
CREATE TABLE image (title text, raster lo);
CREATE TRIGGER t_raster BEFORE UPDATE OR DELETE ON image
- FOR EACH ROW EXECUTE PROCEDURE lo_manage(raster);
+ FOR EACH ROW EXECUTE FUNCTION lo_manage(raster);
CREATE TRIGGER test_valid_id_trig
BEFORE INSERT OR UPDATE ON test
- FOR EACH ROW EXECUTE PROCEDURE valid_id();
+ FOR EACH ROW EXECUTE FUNCTION valid_id();
CREATE EVENT TRIGGER perl_a_snitch
ON ddl_command_start
- EXECUTE PROCEDURE perlsnitch();
+ EXECUTE FUNCTION perlsnitch();
$emp_stamp$ LANGUAGE plpgsql;
CREATE TRIGGER emp_stamp BEFORE INSERT OR UPDATE ON emp
- FOR EACH ROW EXECUTE PROCEDURE emp_stamp();
+ FOR EACH ROW EXECUTE FUNCTION emp_stamp();
CREATE TRIGGER emp_audit
AFTER INSERT OR UPDATE OR DELETE ON emp
- FOR EACH ROW EXECUTE PROCEDURE process_emp_audit();
+ FOR EACH ROW EXECUTE FUNCTION process_emp_audit();
CREATE TRIGGER emp_audit
INSTEAD OF INSERT OR UPDATE OR DELETE ON emp_view
- FOR EACH ROW EXECUTE PROCEDURE update_emp_view();
+ FOR EACH ROW EXECUTE FUNCTION update_emp_view();
CREATE TRIGGER maint_sales_summary_bytime
AFTER INSERT OR UPDATE OR DELETE ON sales_fact
- FOR EACH ROW EXECUTE PROCEDURE maint_sales_summary_bytime();
+ FOR EACH ROW EXECUTE FUNCTION maint_sales_summary_bytime();
INSERT INTO sales_fact VALUES(1,1,1,10,3,15);
INSERT INTO sales_fact VALUES(1,2,1,20,5,35);
CREATE TRIGGER emp_audit_ins
AFTER INSERT ON emp
REFERENCING NEW TABLE AS new_table
- FOR EACH STATEMENT EXECUTE PROCEDURE process_emp_audit();
+ FOR EACH STATEMENT EXECUTE FUNCTION process_emp_audit();
CREATE TRIGGER emp_audit_upd
AFTER UPDATE ON emp
REFERENCING OLD TABLE AS old_table NEW TABLE AS new_table
- FOR EACH STATEMENT EXECUTE PROCEDURE process_emp_audit();
+ FOR EACH STATEMENT EXECUTE FUNCTION process_emp_audit();
CREATE TRIGGER emp_audit_del
AFTER DELETE ON emp
REFERENCING OLD TABLE AS old_table
- FOR EACH STATEMENT EXECUTE PROCEDURE process_emp_audit();
+ FOR EACH STATEMENT EXECUTE FUNCTION process_emp_audit();
END;
$$ LANGUAGE plpgsql;
-CREATE EVENT TRIGGER snitch ON ddl_command_start EXECUTE PROCEDURE snitch();
+CREATE EVENT TRIGGER snitch ON ddl_command_start EXECUTE FUNCTION snitch();
CREATE TABLE mytab (num integer, description text, modcnt integer);
CREATE TRIGGER trig_mytab_modcount BEFORE INSERT OR UPDATE ON mytab
- FOR EACH ROW EXECUTE PROCEDURE trigfunc_modcount('modcnt');
+ FOR EACH ROW EXECUTE FUNCTION trigfunc_modcount('modcnt');
Notice that the trigger function itself does not know the column
elog NOTICE "tclsnitch: $TG_event $TG_tag"
$$ LANGUAGE pltcl;
-CREATE EVENT TRIGGER tcl_a_snitch ON ddl_command_start EXECUTE PROCEDURE tclsnitch();
+CREATE EVENT TRIGGER tcl_a_snitch ON ddl_command_start EXECUTE FUNCTION tclsnitch();
CREATE EVENT TRIGGER name
ON event
[ WHEN filter_variable IN (filter_value [, ... ]) [ AND ... ] ]
- EXECUTE PROCEDURE function_name()
+ EXECUTE { FUNCTION | PROCEDURE } function_name()
A user-supplied function that is declared as taking no argument and
returning type event_trigger.
+
+ In the syntax of CREATE EVENT TRIGGER, the keywords
+ FUNCTION and PROCEDURE are
+ equivalent, but the referenced function must in any case be a function,
+ not a procedure. The use of the keyword PROCEDURE
+ here is historical and deprecated.
+
$$;
CREATE EVENT TRIGGER abort_ddl ON ddl_command_start
- EXECUTE PROCEDURE abort_any_command();
+ EXECUTE FUNCTION abort_any_command();
[ REFERENCING { { OLD | NEW } TABLE [ AS ] transition_relation_name } [ ... ] ]
[ FOR [ EACH ] { ROW | STATEMENT } ]
[ WHEN ( condition ) ]
- EXECUTE PROCEDURE function_name ( arguments )
+ EXECUTE { FUNCTION | PROCEDURE } function_name ( arguments )
where event can be one of:
and returning type trigger, which is executed when
the trigger fires.
+
+ In the syntax of CREATE TRIGGER, the keywords
+ FUNCTION and PROCEDURE are
+ equivalent, but the referenced function must in any case be a function,
+ not a procedure. The use of the keyword PROCEDURE
+ here is historical and deprecated.
+
CREATE TRIGGER check_update
BEFORE UPDATE ON accounts
FOR EACH ROW
- EXECUTE PROCEDURE check_account_update();
+ EXECUTE FUNCTION check_account_update();
The same, but only execute the function if column balance
CREATE TRIGGER check_update
BEFORE UPDATE OF balance ON accounts
FOR EACH ROW
- EXECUTE PROCEDURE check_account_update();
+ EXECUTE FUNCTION check_account_update();
This form only executes the function if column balance
BEFORE UPDATE ON accounts
FOR EACH ROW
WHEN (OLD.balance IS DISTINCT FROM NEW.balance)
- EXECUTE PROCEDURE check_account_update();
+ EXECUTE FUNCTION check_account_update();
Call a function to log updates of accounts, but only if
AFTER UPDATE ON accounts
FOR EACH ROW
WHEN (OLD.* IS DISTINCT FROM NEW.*)
- EXECUTE PROCEDURE log_account_update();
+ EXECUTE FUNCTION log_account_update();
Execute the function view_insert_row for each row to insert
CREATE TRIGGER view_insert
INSTEAD OF INSERT ON my_view
FOR EACH ROW
- EXECUTE PROCEDURE view_insert_row();
+ EXECUTE FUNCTION view_insert_row();
Execute the function check_transfer_balances_to_zero for each
AFTER INSERT ON transfer
REFERENCING NEW TABLE AS inserted
FOR EACH STATEMENT
- EXECUTE PROCEDURE check_transfer_balances_to_zero();
+ EXECUTE FUNCTION check_transfer_balances_to_zero();
Execute the function check_matching_pairs for each row to
AFTER UPDATE ON paired_items
REFERENCING NEW TABLE AS newtab OLD TABLE AS oldtab
FOR EACH ROW
- EXECUTE PROCEDURE check_matching_pairs();
+ EXECUTE FUNCTION check_matching_pairs();
CREATE TABLE
test=# create trigger tcndata_tcn_trigger
test-# after insert or update or delete on tcndata
-test-# for each row execute procedure triggered_change_notification();
+test-# for each row execute function triggered_change_notification();
CREATE TRIGGER
test=# listen tcn;
LISTEN
);
CREATE TRIGGER tsvectorupdate BEFORE INSERT OR UPDATE
-ON messages FOR EACH ROW EXECUTE PROCEDURE
+ON messages FOR EACH ROW EXECUTE FUNCTION
tsvector_update_trigger(tsv, 'pg_catalog.english', title, body);
INSERT INTO messages VALUES('title here', 'the body text is here');
$$ LANGUAGE plpgsql;
CREATE TRIGGER tsvectorupdate BEFORE INSERT OR UPDATE
- ON messages FOR EACH ROW EXECUTE PROCEDURE messages_trigger();
+ ON messages FOR EACH ROW EXECUTE FUNCTION messages_trigger();
LANGUAGE C;
CREATE TRIGGER tbefore BEFORE INSERT OR UPDATE OR DELETE ON ttest
- FOR EACH ROW EXECUTE PROCEDURE trigf();
+ FOR EACH ROW EXECUTE FUNCTION trigf();
CREATE TRIGGER tafter AFTER INSERT OR UPDATE OR DELETE ON ttest
- FOR EACH ROW EXECUTE PROCEDURE trigf();
+ FOR EACH ROW EXECUTE FUNCTION trigf();
CreateTrigStmt:
CREATE TRIGGER name TriggerActionTime TriggerEvents ON
qualified_name TriggerReferencing TriggerForSpec TriggerWhen
- EXECUTE PROCEDURE func_name '(' TriggerFuncArgs ')'
+ EXECUTE FUNCTION_or_PROCEDURE func_name '(' TriggerFuncArgs ')'
{
CreateTrigStmt *n = makeNode(CreateTrigStmt);
n->trigname = $3;
| CREATE CONSTRAINT TRIGGER name AFTER TriggerEvents ON
qualified_name OptConstrFromTable ConstraintAttributeSpec
FOR EACH ROW TriggerWhen
- EXECUTE PROCEDURE func_name '(' TriggerFuncArgs ')'
+ EXECUTE FUNCTION_or_PROCEDURE func_name '(' TriggerFuncArgs ')'
{
CreateTrigStmt *n = makeNode(CreateTrigStmt);
n->trigname = $4;
| /*EMPTY*/ { $$ = NULL; }
;
+FUNCTION_or_PROCEDURE:
+ FUNCTION
+ | PROCEDURE
+ ;
+
TriggerFuncArgs:
TriggerFuncArg { $$ = list_make1($1); }
| TriggerFuncArgs ',' TriggerFuncArg { $$ = lappend($1, $3); }
create trigger check_fkeys_pkey_exist
before insert or update on fkeys
for each row
- execute procedure
+ execute function
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');
+ execute function check_primary_key ('fkey3', 'fkeys2', 'pkey23');
--
-- For fkeys2:
-- (fkey21, fkey22) --> pkeys (pkey1, pkey2)
create trigger check_fkeys_pkey_exist
before insert or update on fkeys
for each row
- execute procedure
+ execute function
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');
+ execute function check_primary_key ('fkey3', 'fkeys2', 'pkey23');
--
-- For fkeys2:
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