-- -- insert with DEFAULT in the target_list -- create table inserttest (col1 int4, col2 int4 NOT NULL, col3 text default 'testing'); insert into inserttest (col1, col2, col3) values (DEFAULT, DEFAULT, DEFAULT); insert into inserttest (col2, col3) values (3, DEFAULT); insert into inserttest (col1, col2, col3) values (DEFAULT, 5, DEFAULT); insert into inserttest values (DEFAULT, 5, 'test'); insert into inserttest values (DEFAULT, 7); select * from inserttest; -- -- insert with similar expression / target_list values (all fail) -- insert into inserttest (col1, col2, col3) values (DEFAULT, DEFAULT); insert into inserttest (col1, col2, col3) values (1, 2); insert into inserttest (col1) values (1, 2); insert into inserttest (col1) values (DEFAULT, DEFAULT); select * from inserttest; -- -- VALUES test -- insert into inserttest values(10, 20, '40'), (-1, 2, DEFAULT), ((select 2), (select i from (values(3)) as foo (i)), 'values are fun!'); select * from inserttest; -- -- TOASTed value test -- insert into inserttest values(30, 50, repeat('x', 10000)); select col1, col2, char_length(col3) from inserttest; drop table inserttest;