Module sum 

Defines SUM and SUM DISTINCT aggregate accumulators

Macros

downcast_sum 🔒

Sum only supports a subset of numeric types, instead relying on type coercion

Structs

SlidingDistinctSumAccumulator

A sliding‐window accumulator for SUM(DISTINCT) over Int64 columns. Maintains a running sum so that evaluate() is O(1).

SlidingSumAccumulator 🔒

This accumulator incrementally computes sums over a sliding window

Sum

SumAccumulator 🔒

This accumulator computes SUM incrementally

Functions

sum

Returns the sum of a group of values.

sum_distinct

sum_udaf

AggregateFunction that returns a AggregateUDF for Sum