Query Optimizations for Data Sources

[Anoop Johnson]

All --

I was reading through the Dynamic Partition Pruning (DPP) code[1] and if I understood it correctly, DPP works for only file system-backed tables. Is it possible to extend DPP to work on partitioned data sources as well? If so, is there a JIRA to track this?

I have another open-ended question: are there any other major optimizations that currently don't work for data sources? 

Thanks,

Anoop

[1] https://github.com/apache/spark/blob/afa6aee4f5ea270db5331e48ad08e0b176cdd2a0/sql/core/src/main/scala/org/apache/spark/sql/execution/dynamicpruning/PartitionPruning.scala#L59-L63