Function write_array

examples/cpp_api/query_condition_sparse.cc:118–159

* @brief Execute a write on array query_condition_sparse array * which then stores the following data in the array. The table * is organized by dimension/attribute. * * index | a | b | c | d * ------------------------------- * 0 | null | alice | 0 | 4.1 * 1 | 2 | bob | 0 | 3.4 * 2 | null | craig | 0 | 5.6 * 3 | 4 | dave | 0 | 3.7 * 4 | null | erin |

 * @param ctx The context.
 */
void write_array(Context& ctx) {
  // Create data buffers that store the values to be written in.
  std::vector<int32_t> dim_data = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9};
  std::vector<int32_t> a_data = {0, 2, 0, 4, 0, 6, 0, 8, 0, 10};
  std::vector<uint8_t> a_data_validity = {0, 1, 0, 1, 0, 1, 0, 1, 0, 1};
  std::vector<std::string> b_strs = {
      "alice",
      "bob",
      "craig",
      "dave",
      "erin",
      "frank",
      "grace",
      "heidi",
      "ivan",
      "judy"};
  std::string b_data = "";
  std::vector<uint64_t> b_data_offsets;
  for (const auto& elem : b_strs) {
    b_data_offsets.push_back(b_data.size());
    b_data += elem;
  }
  std::vector<int32_t> c_data = {0, 0, 0, 0, 0, 0, 1, 2, 3, 4};
  std::vector<float> d_data = {
      4.1, 3.4, 5.6, 3.7, 2.3, 1.7, 3.8, 4.9, 3.2, 3.1};

  // Execute the write query.
  Array array_w(ctx, array_name, TILEDB_WRITE);
  Query query_w(ctx, array_w);
  query_w.set_layout(TILEDB_UNORDERED)
      .set_data_buffer("index", dim_data)
      .set_data_buffer("a", a_data)
      .set_validity_buffer("a", a_data_validity)
      .set_data_buffer("b", b_data)
      .set_offsets_buffer("b", b_data_offsets)
      .set_data_buffer("c", c_data)
      .set_data_buffer("d", d_data);

  query_w.submit();
  query_w.finalize();
  array_w.close();
}

/**
 * @brief Executes the read query for the array created in write_array.