| Package | Description | 
|---|---|
| io.druid.query.aggregation | |
| io.druid.query.aggregation.histogram | |
| io.druid.segment | 
| Constructor and Description | 
|---|
DoubleSumAggregator(String name,
                   FloatColumnSelector selector)  | 
DoubleSumBufferAggregator(FloatColumnSelector selector)  | 
HistogramAggregator(String name,
                   FloatColumnSelector selector,
                   float[] breaks)  | 
HistogramBufferAggregator(FloatColumnSelector selector,
                         float[] breaks)  | 
MaxAggregator(String name,
             FloatColumnSelector selector)  | 
MaxBufferAggregator(FloatColumnSelector selector)  | 
MinAggregator(String name,
             FloatColumnSelector selector)  | 
MinBufferAggregator(FloatColumnSelector selector)  | 
| Constructor and Description | 
|---|
ApproximateHistogramAggregator(String name,
                              FloatColumnSelector selector,
                              int resolution,
                              float lowerLimit,
                              float upperLimit)  | 
ApproximateHistogramBufferAggregator(FloatColumnSelector selector,
                                    int resolution,
                                    float lowerLimit,
                                    float upperLimit)  | 
| Modifier and Type | Method and Description | 
|---|---|
FloatColumnSelector | 
ColumnSelectorFactory.makeFloatColumnSelector(String columnName)  | 
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