Github user HyukjinKwon commented on the issue:
https://github.com/apache/spark/pull/14638
Up to my knowledge, currently, CSV datasource does supports to skip a
(only) single line with `header` option and also `comment` option to skip the
lines started with the character given to `comment` whereas
`skip.header.line.count` suggested here literally supports to skip multiple
lines.
So, strictly they are not exactly duplicates but I believe it is true some
ranges that `skip.header.line.count` supports can be worked around with the
options, `header` and `comment` as explained by @dongjoon-hyun and @cloud-fan.
If we admit skipping a single line (or skipping lines started with
`comment`) is a common case and enough to cover this feature, that would not be
a big inconvenience but if users believe it is still useful to skip multiple
lines, we would still need this.
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