RainLab\Builder\Classes\TableMigrationCodeGenerator::applyMethodIncrements PHP Method

    protected function applyMethodIncrements($method, $column)
    {
        if (!$column->getAutoincrement()) {
            return $method;
        }
        if ($method == MigrationColumnType::TYPE_BIGINTEGER) {
            return 'bigIncrements';
        }
        return 'increments';
    }