message: Fixed anothert Windows warning
diff: @@ -249,7 +249,8 @@ column_join_helper_(const LHS_T &lhs,
  // Load the new result index
  result.load_index(
  - std::move(StdDataFrame<unsigned int>::gen_sequence_index(0, jii_s, 1)));
  + std::move(StdDataFrame<unsigned int>::gen_sequence_index(
  + 0, static_cast<unsigned int>(jii_s), 1)));
  // Load the lhs and rhs indices into two columns in the result
  // Also load the unified named column
  