boolop_tbool_tbool datum_and datum_or tand_bool_tbool tand_tbool_bool tand_tbool_tbool tnot_tbool tnot_tbool_internal tor_bool_tbool tor_tbool_bool tor_tbool_tbool

tnot_tbool() Datum tnot_tbool ( PG_FUNCTION_ARGS  ) Returns the temporal boolean not of the temporal value.