Github user tillrohrmann commented on the pull request:
https://github.com/apache/flink/pull/801#issuecomment-110645638
Why only offering this method for Gelly? Can't we generalize the index
algorithm for generic types? It could also be useful for the ML library, for
example. I'm thinking of something like `zipWithIndex` what is also offered by
Spark's API.
---
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.
---
