impala::KnuthVarianceState Struct Reference

Collaboration diagram for impala::KnuthVarianceState:

Public Attributes
double	mean
double	m2
int64_t	count

Detailed Description

Definition at line 1079 of file aggregate-functions.cc.

Member Data Documentation

int64_t impala::KnuthVarianceState::count

Definition at line 1082 of file aggregate-functions.cc.

Referenced by impala::ComputeKnuthVariance(), impala::AggregateFunctions::KnuthStddevFinalize(), impala::AggregateFunctions::KnuthStddevPopFinalize(), impala::AggregateFunctions::KnuthVarFinalize(), impala::AggregateFunctions::KnuthVarMerge(), impala::AggregateFunctions::KnuthVarPopFinalize(), and impala::AggregateFunctions::KnuthVarUpdate().

double impala::KnuthVarianceState::m2

Definition at line 1081 of file aggregate-functions.cc.

Referenced by impala::ComputeKnuthVariance(), impala::AggregateFunctions::KnuthVarMerge(), and impala::AggregateFunctions::KnuthVarUpdate().

double impala::KnuthVarianceState::mean

Definition at line 1080 of file aggregate-functions.cc.

Referenced by impala::AggregateFunctions::KnuthVarMerge(), and impala::AggregateFunctions::KnuthVarUpdate().

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The documentation for this struct was generated from the following file:

• be/src/exprs/aggregate-functions.cc