drop table test_data; create table test_data(f1 int); insert into test_data values (random() * 100); insert into test_data select random() * 100 from test_data; insert into test_data select random() * 100 from test_data; insert into test_data select random() * 100 from test_data; insert into test_data select random() * 100 from test_data; insert into test_data select random() * 100 from test_data; insert into test_data select random() * 100 from test_data; insert into test_data select random() * 100 from test_data; insert into test_data select random() * 100 from test_data; insert into test_data select random() * 100 from test_data; insert into test_data select random() * 100 from test_data; insert into test_data select random() * 100 from test_data; insert into test_data select random() * 100 from test_data; insert into test_data select random() * 100 from test_data; insert into test_data select random() * 100 from test_data; insert into test_data select random() * 100 from test_data; insert into test_data select random() * 100 from test_data; create index test_index on test_data(f1); vacuum verbose analyze test_data; checkpoint;