See https://github.com/silverstripe/silverstripe-mssql/issues/14
for more info.
"bigint" doesn't work for PHP 32-bit, as the integer could get too big
for PHP to be able to interpret the value as an integer type. In that
case it would try to approximate it as a float, but that could lead
to a bad assumption for identity columns.
For compatibility, stick with standard "int" type which has a maximum
value of 2147483647.
Note that MySQLAdapter already has this maximum, so changing it to
this keeps this database adapter consistent with MySQL.
Damian Mooyman
helpfulrobot
ClayLennart
Sean Harvey
Damian Mooyman