lukecwik commented on issue #22945:
URL: https://github.com/apache/beam/issues/22945#issuecomment-1234919430

   An idea to fix this would be to swap out the concatenate combiner with one 
which outputs the records and the metadata record for PCollection list view 
ensuring that the metadata record only exists for the set of records that are 
being written. This would work for accumulating and discarding mode and we 
could ensure that there is only a single metadata record for all the values 
greatly simplifying down the access code since we wouldn't need to perform the 
mapping from index to position and sub position since there would only ever be 
one single metadata record.
   
   This should be pipeline update compatible since the coder that we used would 
have metadata records and records already encoded in it.


-- 
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]

Reply via email to