Function tiledb_buffer_arrow_fmt

tiledb/sm/cpp_api/arrow_io_impl.h:156–273

Get Arrow format from TileDB BufferInfo

// Get Arrow format from TileDB BufferInfo
ArrowInfo tiledb_buffer_arrow_fmt(BufferInfo bufferinfo, bool use_list = true) {
  auto typeinfo = bufferinfo.tdbtype;
  auto cell_val_num = typeinfo.cell_val_num;

  // TODO support List<T> for simple scalar T
  (void)use_list;
  /*
  if (use_list && cell_val_num == TILEDB_VAR_NUM) {
    switch(typeinfo.type) {
      case TILEDB_STRING_UTF8:
      case TILEDB_STRING_ASCII:
        break;
      case TILEDB_BLOB:
      case TILEDB_INT8:
      case TILEDB_INT16:
      case TILEDB_INT32:
      case TILEDB_INT64:
      case TILEDB_UINT8:
      case TILEDB_UINT16:
      case TILEDB_UINT32:
      case TILEDB_UINT64:
      case TILEDB_FLOAT32:
      case TILEDB_FLOAT64:
        return ArrowInfo("+l");
      default:
        throw TDB_LERROR(
          "TileDB-Arrow: List<T> translation not yet supported for var-length
  TileDB type ('"
          + tiledb::impl::type_to_str(typeinfo.type) + "')");
    }
  }
  */

  switch (typeinfo.type) {
    ////////////////////////////////////////////////////////////////////////
    case TILEDB_STRING_ASCII:
    case TILEDB_STRING_UTF8:
      if (bufferinfo.offsets_elem_size == 4) {
        return ArrowInfo("u");
      } else {
        return ArrowInfo("U");
      }
    case TILEDB_CHAR:
      if (bufferinfo.offsets_elem_size == 4) {
        return ArrowInfo("z");
      } else {
        return ArrowInfo("Z");
      }
    case TILEDB_INT32:
      return ArrowInfo("i");
    case TILEDB_INT64:
      return ArrowInfo("l");
    case TILEDB_FLOAT32:
      return ArrowInfo("f");
    case TILEDB_FLOAT64:
      return ArrowInfo("g");
    case TILEDB_BLOB:
      return ArrowInfo("B");