Hi, seems pg_column_is_updatable, pg_relation_is_updatable not documented.
example: create view test_v_tenk1 AS select abs(unique1),unique1 from tenk1; select pg_catalog.pg_column_is_updatable('test_v_tenk1'::regclass, 2::smallint, false) select events & 4 != 0 AS upd, events & 8 != 0 AS ins, events & 16 != 0 AS del from pg_catalog.pg_relation_is_updatable('test_v_tenk1'::regclass, true) t(events); ------------------- I am not sure what the third parameter is doing in pg_column_is_updatable. True or false. The result is the same. similarly, pg_relation_is_updatable, the second parameter true or false the result is the same. -- I recommend David Deutsch's <<The Beginning of Infinity>> Jian