Github user rxin commented on the issue:
https://github.com/apache/spark/pull/13775
This is an interesting pull request (very similar to the Parquet approach).
Two high level comments:
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.
2. We need more tests. This patch has almost no tests.
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