Method ReplaceSchema

cpp/src/arrow/record_batch.cc:375–392

}

Result<std::shared_ptr<RecordBatch>> RecordBatch::ReplaceSchema(
    std::shared_ptr<Schema> schema) const {
  if (schema_->num_fields() != schema->num_fields())
    return Status::Invalid("RecordBatch schema fields", schema_->num_fields(),
                           ", did not match new schema fields: ", schema->num_fields());
  auto fields = schema_->fields();
  int n_fields = static_cast<int>(fields.size());
  for (int i = 0; i < n_fields; i++) {
    auto old_type = fields[i]->type();
    auto replace_type = schema->field(i)->type();
    if (!old_type->Equals(replace_type)) {
      return Status::Invalid(
          "RecordBatch schema field index ", i, " type is ", old_type->ToString(),
          ", did not match new schema field type: ", replace_type->ToString());
    }
  }
  return RecordBatch::Make(std::move(schema), num_rows(), columns(), GetSyncEvent());
}

std::vector<std::string> RecordBatch::ColumnNames() const {
  std::vector<std::string> names(num_columns());