Method arraySum

bolt/expression/tests/SimpleFunctionTest.cpp:56–60

class SimpleFunctionTest : public functions::test::FunctionBaseTest {
 protected:
  VectorPtr arraySum(const std::vector<std::vector<int64_t>>& data) {
    return makeFlatVector<int64_t>(data.size(), [&](auto row) {
      return std::accumulate(data[row].begin(), data[row].end(), 0);
    });
  }

  template <typename T>
  struct CallNullFreeFuncVoidOut {