Method delete_metadata

tiledb/sm/cpp_api/array.h:1089–1094

* It deletes a metadata key-value item from an open array. The array must * be opened in WRITE mode, otherwise the function will error out. * * @param key The key of the metadata item to be deleted. * * @note The writes will take effect only upon closing the array. * * @note If the key does not exist, this will take no effect * (i.e., the function will not error out).

   *     (i.e., the function will not error out).
   */
  void delete_metadata(const std::string& key) {
    auto& ctx = ctx_.get();
    tiledb_ctx_t* c_ctx = ctx.ptr().get();
    ctx.handle_error(
        tiledb_array_delete_metadata(c_ctx, array_.get(), key.c_str()));
  }

  /**
   * It gets a metadata key-value item from an open array. The array must