public static class GenericUDAFComputeStats.GenericUDAFDoubleStatsEvaluator.DoubleStatsAgg extends GenericUDAFEvaluator.AbstractAggregationBuffer
Modifier and Type | Field and Description |
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java.lang.String |
columnType |
long |
countNulls |
boolean |
firstItem |
double |
max |
double |
min |
int |
numBitVectors |
DoubleNumDistinctValueEstimator |
numDV |
Constructor and Description |
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DoubleStatsAgg() |
Modifier and Type | Method and Description |
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int |
estimate()
Estimate the size of memory which is occupied by aggregation buffer.
|
public java.lang.String columnType
public double min
public double max
public long countNulls
public DoubleNumDistinctValueEstimator numDV
public boolean firstItem
public int numBitVectors
public int estimate()
GenericUDAFEvaluator.AbstractAggregationBuffer
estimate
in class GenericUDAFEvaluator.AbstractAggregationBuffer
Copyright © 2012 The Apache Software Foundation