Github user gatorsmile commented on the issue:
https://github.com/apache/spark/pull/14638
In the original Hive JIRA of this feature:
https://issues.apache.org/jira/browse/HIVE-5795
See the latest reply from `Sergey Shelukhin`.
> This forces the entire input into a single split, which defeats the
purpose of using Hive in the first place - might as well run the analysis on a
local machine. I would not recommend anyone to use this feature except for
experimentation. The headers/footers should be cleared as part of an ETL
process.
I do not know how many Hive users are using them in the production system.
This might not be recommended in the Hive side.
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