org.apache.drill.exec.planner.index

Interface IndexStatistics

All Known Implementing Classes:

AbstractIndexStatistics

public interface IndexStatistics

Method Summary

Modifier and Type	Method and Description
List<org.apache.calcite.rel.RelCollation>	getCollations() Returns the collections of columns on which this table is sorted.
org.apache.calcite.rel.RelDistribution	getDistribution() Returns the distribution of the data in query result table.
double	getRowCount() Returns the approximate number of rows in the table.

Method Detail

getRowCount

double getRowCount()

Returns the approximate number of rows in the table.

getCollations

List<org.apache.calcite.rel.RelCollation> getCollations()

Returns the collections of columns on which this table is sorted.

getDistribution

org.apache.calcite.rel.RelDistribution getDistribution()

Returns the distribution of the data in query result table.