@Evolving public interface SupportsReportPartitioning extends Scan
Scan. Data sources can implement this interface to report data partitioning and try to avoid shuffle at Spark side. Note that, when a
Scanimplementation creates exactly one
InputPartition, Spark may avoid adding a shuffle even if the reader does not implement this interface.
|Modifier and Type||Method and Description|
Returns the output data partitioning that this reader guarantees.