Hi, I believe the range listed in Table 8-2. Numeric Types http://www.postgresql.org/docs/9.3/static/datatype-numeric.html is incorrect for the serial types.
E.g. serial4 bytesautoincrementing integer1 to 2147483647This describes the auto-incrementing behaviour, but in practice the range is -2147483648 to +2147483647 as the only restriction on the created column is NOT NULL. Tested on 9.3.10. Regards, Lewis Christie
