Hey Guys: I hate to bother you, but I just downloaded and installed the updated builds presently (Sept 27) posted on http://monetdb.cwi.nl/testing/projects/monetdb/Stable/.DailyBuilds./RPMs/SuS... I still get: monetdb-> create table test (name varchar(10), seq serial); Operation successful monetdb-> create table test1 (name varchar(10)); Operation successful monetdb-> insert into test1 values ('a'), ('b'), ('c'); 3 affected rows monetdb-> insert into test (name) select (name) from test1; Error: ERROR: INSERT INTO: PRIMARY KEY constraint 'test.test_seq_pkey' violated What do you think? George