Postgres 11

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create sequence epictable_seq
    MINVALUE -2147483648 
    start -2147483648 
    increment 1
    NO MAXVALUE
    CACHE 1;
CREATE TABLE epictable
(
    mytable_key    INT unique not null,
    moobars        VARCHAR(40) not null,
    foobars        DATE
);
insert into epictable(mytable_key, moobars,foobars) 
values
  (nextval('epictable_seq'),'delicious moobars','2012-05-01')
, (nextval('epictable_seq'),'worldwide interblag','2012-05-02')
;
2 rows affected

select * 
from epictable
;


mytable_key
moobars
foobars


-2147483648
delicious moobars
2012-05-01

-2147483647
worldwide interblag
2012-05-02

mytable_key	moobars	foobars
-2147483648	delicious moobars	2012-05-01
-2147483647	worldwide interblag	2012-05-02