Github user shivaram commented on the issue:
https://github.com/apache/spark/pull/14444
@eyalfa Yes - we get the schema from Scala and assign the column names from
that [1]. I think @hvanhovell knows more about the compatibility requirements
Also @HyukjinKwon if there is a way to automatically make `testthat` print
it we can try that. We have a lot of test cases so adding print statements
around all of them might be a problem.
[1]
https://github.com/apache/spark/blob/a454a4d86bbed1b6988da0a0e23b3e87a1a16340/R/pkg/R/DataFrame.R#L1087
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