Hi,
I don't think so. I can't think of an interface (trait) that would give
that information to the Catalyst optimizer.
Pozdrawiam,
Jacek Laskowski
https://about.me/JacekLaskowski
Mastering Spark SQL https://bit.ly/mastering-spark-sql
Spark Structured Streaming https://bit.ly/spark-structure
Please join the DataSource V2 meetings, the next one is tomorrow since we
are discussing these very topics right now. Datasource v1 cannot provide
this information but any source which
just generates RDDs can specify a partitioner. This is only useful though
if you are only using RDDs, for Datafram
