I originally thought R's row labels were just numerical indices (1, 2, 3, 4, ... etc.) but it seems like some data frames have named indices, like mtcars. if that's the case, we should output the row labels as well, which makes the schema more consistent with what pandas outputs
In R this is bad pedagogy/ worst practice and therefore I do not want to support it. If row names are present the best practice is to use tibble::rownames_to_column().
I originally thought R's row labels were just numerical indices (1, 2, 3, 4, ... etc.) but it seems like some data frames have named indices, like mtcars. if that's the case, we should output the row labels as well, which makes the schema more consistent with what pandas outputs