org.apache.spark.sql.connector.read

Interface Statistics

@Evolving
public interface Statistics

An interface to represent statistics for a data source, which is returned by SupportsReportStatistics.estimateStatistics().

Since:

3.0.0

Method Summary

Modifier and Type	Method and Description
default java.util.Map<NamedReference,ColumnStatistics>	columnStats()
java.util.OptionalLong	numRows()
java.util.OptionalLong	sizeInBytes()

Method Detail

sizeInBytes

java.util.OptionalLong sizeInBytes()

numRows

java.util.OptionalLong numRows()

columnStats

default java.util.Map<NamedReference,ColumnStatistics> columnStats()