Trait StatisticalAggregatePolicy 

pub trait StatisticalAggregatePolicy<D>: Numeric {
    type StddevPop: DataType;
    type StddevSamp: DataType;
    type VarPop: DataType;
    type VarSamp: DataType;
}

Required Associated Types

type StddevPop: DataType

type StddevSamp: DataType

type VarPop: DataType

type VarSamp: DataType

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementations on Foreign Types

impl StatisticalAggregatePolicy<PostgresDialect> for Float4

type StddevPop = Float8

type StddevSamp = Float8

type VarPop = Float8

type VarSamp = Float8

impl StatisticalAggregatePolicy<PostgresDialect> for Float8

type StddevPop = Float8

type StddevSamp = Float8

type VarPop = Float8

type VarSamp = Float8

impl StatisticalAggregatePolicy<PostgresDialect> for Int2

type StddevPop = Float8

type StddevSamp = Float8

type VarPop = Float8

type VarSamp = Float8

impl StatisticalAggregatePolicy<PostgresDialect> for Int4

type StddevPop = Float8

type StddevSamp = Float8

type VarPop = Float8

type VarSamp = Float8

impl StatisticalAggregatePolicy<PostgresDialect> for Int8

type StddevPop = Float8

type StddevSamp = Float8

type VarPop = Float8

type VarSamp = Float8

impl StatisticalAggregatePolicy<PostgresDialect> for Numeric

type StddevPop = Float8

type StddevSamp = Float8

type VarPop = Float8

type VarSamp = Float8

Implementors