NOTICE: CREATE TABLE will create implicit sequence "foo_f1_seq" for serial column "foo.f1"
NOTICE: Table doesn't have 'DISTRIBUTED BY' clause -- Using column named 'f1' as the Greenplum Database data distribution key for this table.
HINT: The 'DISTRIBUTED BY' clause determines the distribution of data. Make sure column(s) chosen are the optimal data distribution key to minimize skew.