Method MaxNumDescriptors

src/colmap/scene/database_sqlite.cc:623–625

  }

  size_t MaxNumDescriptors() const override {
    return MaxColumn("rows", "descriptors");
  }

  size_t NumDescriptorsForImage(const image_t image_id) const override {
    return CountRowsForEntry(sql_stmt_num_descriptors_, image_id);