Github user nongli commented on the pull request:
https://github.com/apache/spark/pull/11236#issuecomment-189069233
LGTM,
thanks for writing these benchmarks.
I think moving forward, I agree that ColumnVector is a natural data
structure to decode into, but we should probably not add this logic directly
into those classes just from a code maintenance point of view. I think
exploring the parquet encodings makes sense but let's start by benchmarking
those and see if they have the right performance characteristics.
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