Package org.apache.drill.exec.planner.index

Interface IndexStatistics

All Known Implementing Classes:
AbstractIndexStatistics
public interface IndexStatistics

  • Method Summary

    Modifier and Type
    Method
    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 Details

    • 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.