Github user mridulm commented on the pull request:
https://github.com/apache/spark/pull/2118#issuecomment-53334116
@mengxr Other than custom input/output format's i have written; iirc pig
and jaql support this and both are opensource and run on top of hadoop, so they
have input/output format's for this - though not sure if it is possible to
directly import their code (might bring in too many other dependencies, and
might be within deep layers of their abstractions).
There are also csv based reader/writers out there which allow us to
customize the escape and delimiter characters - might be possible to customize
them I suppose - though I have not investigated it in detail.
Even assuming we cant borrow this from an external source verbatim and have
to author it ourself, I am not in favor of putting it in core.
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