Github user srowen commented on the pull request:
https://github.com/apache/spark/pull/11806#issuecomment-198314857
It does mean each record is compressed separately. Maybe that makes sense
for huge records, or somehow facilitates processing pieces of a block (since
the whole block has to be uncompressed to use any of it). However Tom's book
says block compression should be preferred. I don't know why it's not the
default. Also summoning @steveloughran
---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at infrastruct...@apache.org or file a JIRA ticket
with INFRA.
---
---------------------------------------------------------------------
To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org
For additional commands, e-mail: reviews-h...@spark.apache.org
