Github user rxin commented on the pull request:
https://github.com/apache/incubator-spark/pull/575#issuecomment-35445845
@fommil maybe that changed in 2.10.x entirely given the addition of value
classes, and maybe Breeze is very careful in its implicit usage, but often
implicits in scala 2.9.x can be super confusing and result in creation of new
objects that are not obvious and can be a performance killer.
---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. To do so, please top-post your response.
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
[email protected] or file a JIRA ticket with INFRA.
---
