Package | Description |
---|---|
org.apache.hadoop.hive.ql.udf.generic |
Standard toolkit and framework for generic User-defined functions.
|
Modifier and Type | Class and Description |
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class |
GenericUDAFAverage
GenericUDAFAverage.
|
class |
GenericUDAFBridge
This class is a bridge between GenericUDAF and UDAF.
|
class |
GenericUDAFCollectList |
class |
GenericUDAFCollectSet
GenericUDAFCollectSet
|
class |
GenericUDAFComputeStats
GenericUDAFComputeStats
|
class |
GenericUDAFCorrelation
Compute the Pearson correlation coefficient corr(x, y), using the following
stable one-pass method, based on:
"Formulas for Robust, One-Pass Parallel Computation of Covariances and
Arbitrary-Order Statistical Moments", Philippe Pebay, Sandia Labs
and "The Art of Computer Programming, volume 2: Seminumerical Algorithms",
Donald Knuth.
|
class |
GenericUDAFCovariance
Compute the covariance covar_pop(x, y), using the following one-pass method
(ref.
|
class |
GenericUDAFCovarianceSample
Compute the sample covariance by extending GenericUDAFCovariance and overriding
the terminate() method of the evaluator.
|
class |
GenericUDAFCumeDist |
class |
GenericUDAFDenseRank |
class |
GenericUDAFEWAHBitmap
GenericUDAFEWAHBitmap.
|
class |
GenericUDAFFirstValue |
class |
GenericUDAFHistogramNumeric
Computes an approximate histogram of a numerical column using a user-specified number of bins.
|
class |
GenericUDAFLag |
class |
GenericUDAFLastValue |
class |
GenericUDAFLead |
class |
GenericUDAFLeadLag
abstract class for Lead & lag UDAFs GenericUDAFLeadLag.
|
class |
GenericUDAFMax |
class |
GenericUDAFMin |
class |
GenericUDAFNTile |
class |
GenericUDAFPercentileApprox
Computes an approximate percentile (quantile) from an approximate histogram, for very
large numbers of rows where the regular percentile() UDAF might run out of memory.
|
class |
GenericUDAFPercentRank |
class |
GenericUDAFRank |
class |
GenericUDAFRowNumber |
class |
GenericUDAFStd
Compute the standard deviation by extending GenericUDAFVariance and
overriding the terminate() method of the evaluator.
|
class |
GenericUDAFStdSample
Compute the sample standard deviation by extending GenericUDAFVariance and
overriding the terminate() method of the evaluator.
|
class |
GenericUDAFSum
GenericUDAFSum.
|
class |
GenericUDAFVariance
Compute the variance.
|
class |
GenericUDAFVarianceSample
Compute the sample variance by extending GenericUDAFVariance and overriding
the terminate() method of the evaluator.
|
Copyright © 2017 The Apache Software Foundation. All rights reserved.