lidavidm commented on code in PR #12812:
URL: https://github.com/apache/arrow/pull/12812#discussion_r845076985
##########
cpp/src/arrow/ipc/writer.cc:
##########
@@ -263,6 +263,14 @@ class RecordBatchSerializer {
out_->body_length = offset - buffer_start_offset_;
DCHECK(bit_util::IsMultipleOf8(out_->body_length));
+ // copy given record batch's schema metadata to the serializer for
serialization
+ auto const &metadata = batch.schema()->metadata();
Review Comment:
Maybe we should instead add overloads that also allow explicitly passing in
metadata to include with the message. Thoughts @pitrou @westonpace?
##########
cpp/src/arrow/ipc/writer.cc:
##########
@@ -263,6 +263,14 @@ class RecordBatchSerializer {
out_->body_length = offset - buffer_start_offset_;
DCHECK(bit_util::IsMultipleOf8(out_->body_length));
+ // copy given record batch's schema metadata to the serializer for
serialization
+ auto const &metadata = batch.schema()->metadata();
Review Comment:
```suggestion
const auto& metadata = batch.schema()->metadata();
```
for consistency
##########
cpp/src/arrow/ipc/writer.cc:
##########
@@ -263,6 +263,14 @@ class RecordBatchSerializer {
out_->body_length = offset - buffer_start_offset_;
DCHECK(bit_util::IsMultipleOf8(out_->body_length));
+ // copy given record batch's schema metadata to the serializer for
serialization
+ auto const &metadata = batch.schema()->metadata();
Review Comment:
I'm not sure about this change. If the overall schema has metadata, then
won't this copy the schema metadata into every batch, duplicating it over and
over?
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: [email protected]
For queries about this service, please contact Infrastructure at:
[email protected]
