Method SerializeMetadata

cpp/src/arrow/ipc/writer.cc:182–188

Override this for writing dictionary metadata

  // Override this for writing dictionary metadata
  virtual Status SerializeMetadata(int64_t num_rows) {
    ARROW_ASSIGN_OR_RAISE(
        out_->metadata,
        WriteRecordBatchMessage(num_rows, out_->body_length, custom_metadata_,
                                field_nodes_, buffer_meta_, variadic_counts_, options_));
    return Status::OK();
  }

  bool ShouldCompress(int64_t uncompressed_size, int64_t compressed_size) const {
    DCHECK_GT(uncompressed_size, 0);