Package org.apache.datasketches.hive.frequencies

Hive UDFs for Frequent Items sketch.

See: Description

Class Summary

Class	Description
DataToItemsSketchUDAF<T>	This is a generic implementation to be specialized in subclasses
DataToItemsSketchUDAF.DataToItemsSketchEvaluator<T>
DataToStringsSketchUDAF
GetFrequentItemsFromStringsSketchUDTF
UnionItemsSketchUDAF<T>	This is a generic implementation to be specialized in subclasses
UnionItemsSketchUDAF.UnionItemsSketchEvaluator<T>
UnionStringsSketchUDAF

Package org.apache.datasketches.hive.frequencies Description

Hive UDFs for Frequent Items sketch. This includes generic implementation in the form of abstract classes DataToItemsSketchUDAF and UnionItemsSketchUDAF to be specialized for particular types of items. An implementation for strings is provided: DataToStringsSketchUDAF and UnionStringsSketchUDAF. GetFrequentItemsFromStringsSketchUDTF is to obtain results from sketches.

Author:

Alexander Saydakov