id serial NOT NULL,
a integer,
b integer,
c integer,
d smallint,
e timestamp without time zone,
f smallint,
g timestamp without time zone,
h integer,
i timestamp without time zone,
j integer,
k character varying(32),
l integer,
m smallint,
n smallint,
o character varying(36),
p character varying(100),
q character varying(100)

id serial NOT NULL,
a integer,
b integer,
c integer,
g timestamp,
i timestamp,
d smallint,
f smallint,
h integer,
j integer,
l integer,
m smallint,
o character varying(36),
p character varying(100),
q character varying(100),
e timestamp,              --  always NULL
k character varying(32),  --  always NULL
n smallint                --  always NULL