Method num_rows

cpp/src/parquet/file_writer.cc:82–82

int RowGroupWriter::num_columns() const { return contents_->num_columns(); }

int64_t RowGroupWriter::num_rows() const { return contents_->num_rows(); }

inline void ThrowRowsMisMatchError(int col, int64_t prev, int64_t curr) {
  std::stringstream ss;