Get a block of data beginning with the first record with a key greater than the specified key.
Get a block of data beginning with the first record with a key greater than the specified key. If id.isEmpty, return a block starting with the minimum key. Each resulting block should contain only the columns specified in the column set; if the set of columns is empty, return all columns.
A Projection wrapping a raw JDBM TreeMap index used for sorting. It's assumed that the index has been created and filled prior to creating this wrapper.