PostgreSQL 8.1.5 Documentation
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42.32. `pg_trigger`

The catalog pg_trigger stores triggers on tables. See CREATE TRIGGER for more information.

Table 42-32. pg_trigger Columns

Name	Type	References	Description
`tgrelid`	`oid`	`pg_class .oid`	The table this trigger is on
`tgname`	`name`		Trigger name (must be unique among triggers of same table)
`tgfoid`	`oid`	`pg_proc .oid`	The function to be called
`tgtype`	`int2`		Bit mask identifying trigger conditions
`tgenabled`	`bool`		True if trigger is enabled
`tgisconstraint`	`bool`		True if trigger implements a referential integrity constraint
`tgconstrname`	`name`		Referential integrity constraint name
`tgconstrrelid`	`oid`	`pg_class .oid`	The table referenced by an referential integrity constraint
`tgdeferrable`	`bool`		True if deferrable
`tginitdeferred`	`bool`		True if initially deferred
`tgnargs`	`int2`		Number of argument strings passed to trigger function
`tgattr`	`int2vector`		Currently unused
`tgargs`	`bytea`		Argument strings to pass to trigger, each null-terminated

Note: pg_class.reltriggers needs to agree with the number of triggers found in this table for the given relation.

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42.32. pg_trigger