Uses KeyIndex to partition an RDD in memory, giving its records some spatial locality.
Coarse KeyIndex to be used for partitioning of RDDs.
Coarse KeyIndex to be used for partitioning of RDDs. Coarseness means that multiple keys will be mapped to a single SFC value. This many to one mapping forms spatially relate key blocks
Uses KeyIndex to partition an RDD in memory, giving its records some spatial locality. When persisting an RDD partitioned by this partitioner we can safely assume that all records contributing to the same SFC index will reside in one partition.