Github user marmbrus commented on the pull request:
https://github.com/apache/spark/pull/4931#issuecomment-82664735
I don't think change is required. The class check in the `match` for
equality is looking for this exact instance of SpecificRow which will always
have exactly the same length (because it must be generated from the same
expressions).
Unless you have a test case that shows a failure (and in general it is good
to always have one when filing a bug) I suggest we close this issue.
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