stores triggers on tables
for more information.
The table this trigger is on
Parent trigger that this trigger is cloned from, zero if not a clone; this happens when partitions are created or attached to a partitioned table.
Trigger name (must be unique among triggers of same table)
The function to be called
Bit mask identifying trigger firing conditions
Controls in which
the trigger fires.
True if trigger is internally generated (usually, to enforce
the constraint identified by
The table referenced by a referential integrity constraint
The index supporting a unique, primary key, referential integrity, or exclusion constraint
True if constraint trigger is deferrable
True if constraint trigger is initially deferred
Number of argument strings passed to trigger function
Column numbers, if trigger is column-specific; otherwise an empty array
Argument strings to pass to trigger, each NULL-terminated
Expression tree (in
Currently, column-specific triggering is supported only for
events, and so
only for that event type.
contain bits for other event types as well, but those are presumed
to be table-wide regardless of what is in
largely redundant with the referenced
However, it is possible for a non-deferrable trigger to be associated
with a deferrable constraint: foreign key constraints can have some
deferrable and some non-deferrable triggers.
must be true if a relation has any triggers in this catalog.