Package org.apache.calcite.interpreter

Class AggregateNode.DoubleSum

  • Enclosing class:
    AggregateNode
    public static class AggregateNode.DoubleSum
extends java.lang.Object
    Implementation of SUM over DOUBLE values as a user-defined aggregate.

    • Constructor Summary

      Constructors 
      Constructor Description
      DoubleSum()  

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      double add​(double accumulator, double v)  
      double init()  
      double merge​(double accumulator0, double accumulator1)  
      double result​(double accumulator)  

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Constructor Detail

      • DoubleSum

        public DoubleSum()

    • Method Detail

      • init

        public double init()

      • add

        public double add​(double accumulator,
                  double v)

      • merge

        public double merge​(double accumulator0,
                    double accumulator1)

      • result

        public double result​(double accumulator)