Github user viirya commented on the issue:
https://github.com/apache/spark/pull/13775
> 1. Can we just convert Hive's vector format into our own column batch, to
avoid turning the data into rows? I'd imagine you will get a bigger speedup
here.
@rxin You are right. After converting Hive's column vectors into Spark's
column batch, the performance is largely improved. I've posted the newer
benchmark in the pr description.
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