org.apache.hadoop.hive.ql.stats.estimator

Interface StatEstimatorProvider

All Known Implementing Classes:

GenericUDFCase, GenericUDFCoalesce, GenericUDFIf, GenericUDFWhen, UDFSubstr

public interface StatEstimatorProvider

Marker interface for UDFs to communicate that the usage of StatEstimators is supported by the UDF.

Method Summary

Modifier and Type	Method and Description
StatEstimator	getStatEstimator() Returns the StatEstimator for the given UDF instance.

Method Detail

getStatEstimator

StatEstimator getStatEstimator()

Returns the StatEstimator for the given UDF instance.