pg_trigger

The pg_trigger system catalog table stores triggers on tables.

Note LightDB-A Database does not support triggers.

column	type	references	description
`tgrelid`	oid	pg_class.oid Note that LightDB-A 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 LightDB-A 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.
`tgisinternal`	boolean		True if trigger is internally generated (usually, to enforce the constraint identified by tgconstraint).
`tgconstrrelid`	oid	pg_class.oid Note that LightDB-A Database does not enforce referential integrity.	The table referenced by an referential integrity constraint.
`tgconstrindid`	oid	pg_class.oid	The index supporting a unique, primary key, or referential integrity constraint.
`tgconstraint`	oid	pg_constraint.oid	The `pg_constraint` entry associated with the trigger, if any.
`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.
`tgqual`	pg_node_tree		Expression tree (in `nodeToString()` representation) for the trigger’s `WHEN` condition, or null if none.

Parent topic: System Catalogs Definitions