Function executor

cpp/src/arrow/compute/exec.h:67–67

\brief An Executor which may be used to parallelize execution.

  /// \brief An Executor which may be used to parallelize execution.
  ::arrow::internal::Executor* executor() const { return executor_; }

  /// \brief The FunctionRegistry for looking up functions by name and
  /// selecting kernels for execution. Defaults to the library-global function