The aggregate kernels don't support mask (the result of a filter). Add the the following method to AggregateFunction.

virtual Status ConsumeWithFilter(const Array& input, const Array& mask, void* state) const = 0;

The goal is to add support for AST similar to:

SELECT AGG(x) FROM table WHERE pred;

Reporter: Francois Saint-Jacques / @fsaintjacques

Related issues:

• [C++] C++ array kernels framework and execution buildout (umbrella issue) (is a child of)

_{Note: This issue was originally created as ARROW-5005. Please see the migration documentation for further details.}