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GenericUDAFResolver2
instead.
@Deprecated public interface GenericUDAFResolver
A Generic User-defined aggregation function (GenericUDAF) for the use with Hive. GenericUDAFResolver is used at compile time. We use GenericUDAFResolver to find out the GenericUDAFEvaluator for the parameter types.
Method Summary | |
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GenericUDAFEvaluator |
getEvaluator(TypeInfo[] parameters)
Deprecated. Get the evaluator for the parameter types. |
Method Detail |
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GenericUDAFEvaluator getEvaluator(TypeInfo[] parameters) throws SemanticException
If the class of the object does not implement Serializable, then we will create a new instance of the class at execution time.
parameters
- The types of the parameters. We need the type information to know
which evaluator class to use.
SemanticException
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