org.apache.spark.sql.connector.read.partitioning

Interface Partitioning

All Known Implementing Classes:

KeyGroupedPartitioning, UnknownPartitioning

@Evolving
public interface Partitioning

An interface to represent the output data partitioning for a data source, which is returned by SupportsReportPartitioning.outputPartitioning().

Note: implementors should NOT directly implement this interface. Instead, they should use one of the following subclasses:

• KeyGroupedPartitioning
• UnknownPartitioning

Since:

3.0.0

Method Summary

Modifier and Type	Method and Description
int	numPartitions() Returns the number of partitions that the data is split across.

Method Detail

numPartitions

int numPartitions()

Returns the number of partitions that the data is split across.