pg_trigger

The pg_trigger system catalog table stores triggers on tables.

Note: Greenplum Database does not support triggers.

Table 1. pg_catalog.pg_trigger
column	type	references	description
`tgrelid`	oid	pg_class.oid Note that Greenplum Database does not enforce referential integrity.	The table this trigger is on.
`tgname`	name		Trigger name (must be unique among triggers of same table).
`tgfoid`	oid	pg_proc.oid Note that Greenplum Database does not enforce referential integrity.	The function to be called.
`tgtype`	int2		Bit mask identifying trigger conditions.
`tgenabled`	boolean		True if trigger is enabled.
`tgisconstraint`	boolean		True if trigger implements a referential integrity constraint.
`tgconstrname`	name		Referential integrity constraint name.
`tgconstrrelid`	oid	pg_class.oid Note that Greenplum Database does not enforce referential integrity.	The table referenced by an referential integrity constraint.
`tgdeferrable`	boolean		True if deferrable.
`tginitdeferred`	boolean		True if initially deferred.
`tgnargs`	int2		Number of argument strings passed to trigger function.
`tgattr`	int2vector		Currently not used.
`tgargs`	bytea		Argument strings to pass to trigger, each NULL-terminated.