Module functions_aggregate 

re-export of datafusion_functions_aggregate crate

Modules

approx_distinct

Defines physical expressions that can evaluated at runtime during query execution

approx_median

Defines physical expressions for APPROX_MEDIAN that can be evaluated MEDIAN at runtime during query execution

approx_percentile_cont

approx_percentile_cont_with_weight

array_agg

ARRAY_AGG aggregate implementation: ArrayAgg

average

Defines Avg & Mean aggregate & accumulators

bit_and_or_xor

Defines BitAnd, BitOr, BitXor and BitXor DISTINCT aggregate accumulators

bool_and_or

Defines physical expressions that can evaluated at runtime during query execution

correlation

Correlation: correlation sample aggregations.

count

covariance

CovarianceSample: covariance sample aggregations.

expr_fn

Fluent-style API for creating Exprs

first_last

Defines the FIRST_VALUE/LAST_VALUE aggregations.

grouping

Defines physical expressions that can evaluated at runtime during query execution

hyperloglog

HyperLogLog

macros

median

min_max

Max and MaxAccumulator accumulator for the max function Min and MinAccumulator accumulator for the min function

nth_value

Defines NTH_VALUE aggregate expression which may specify ordering requirement that can evaluated at runtime during query execution

percentile_cont

planner

SQL planning extensions like AggregateFunctionPlanner

regr

Defines physical expressions that can evaluated at runtime during query execution

stddev

Defines physical expressions that can evaluated at runtime during query execution

string_agg

StringAgg accumulator for the string_agg function

sum

Defines SUM and SUM DISTINCT aggregate accumulators

variance

VarianceSample: variance sample aggregations. VariancePopulation: variance population aggregations.

Macros

create_func

make_udaf_expr

make_udaf_expr_and_func

Functions

all_default_aggregate_functions

Returns all default aggregate functions

register_all

Registers all enabled packages with a FunctionRegistry