forked from docs/doc-exports
Lu, Huayi
ef0ada5a59
Reviewed-by: Pruthi, Vineet <vineet.pruthi@t-systems.com> Co-authored-by: Lu, Huayi <luhuayi@huawei.com> Co-committed-by: Lu, Huayi <luhuayi@huawei.com>
7.4 KiB
7.4 KiB
Trigger Functions
pg_get_triggerdef(oid)
Description: Obtains the definition information of a trigger.
Parameter: OID of the trigger to be queried
Return type: text
Example:
1 2 3 4 5 | SELECT pg_get_triggerdef(oid) FROM pg_trigger; pg_get_triggerdef ---------------------------------------------------------------------------------------------------------------------- CREATE TRIGGER insert_trigger BEFORE INSERT ON test_trigger_src_tbl FOR EACH ROW EXECUTE PROCEDURE tri_insert_func() (1 row) |
pg_get_triggerdef(oid, boolean)
Description: Obtains the definition information of a trigger.
Parameter: OID of the trigger to be queried and whether it is displayed in pretty mode
Return type: text
The Boolean parameters take effect only when the WHEN condition is specified during trigger creation.
Example:
1 2 3 4 5 6 7 8 9 10 11 | SELECT pg_get_triggerdef(oid,true) FROM pg_trigger; pg_get_triggerdef ---------------------------------------------------------------------------------------------------------------------- CREATE TRIGGER insert_trigger BEFORE INSERT ON test_trigger_src_tbl FOR EACH ROW EXECUTE PROCEDURE tri_insert_func() (1 row) SELECT pg_get_triggerdef(oid,false) FROM pg_trigger; pg_get_triggerdef ---------------------------------------------------------------------------------------------------------------------- CREATE TRIGGER insert_trigger BEFORE INSERT ON test_trigger_src_tbl FOR EACH ROW EXECUTE PROCEDURE tri_insert_func() (1 row) |
Parent topic: Functions and Operators