[Rd] request for use cases for larger integers in R

[Brian Repko]

I just joined the listserv so apologies if this is not threaded in the original discussion
https://stat.ethz.ch/pipermail/r-devel/2026-July/084631.html

A restating of the use cases from Kevin Ushey:
 1. Language interop - C/C++/Fortran, Python via reticulate, Java via rJava, Javascript / JSON APIs
 2. Data structure interop - arrow, DBI (BIGINT), parquet, hdf5, zarr
There are use cases in both single-cell / spatial transcriptomics - big sparse array where we need interop above or the ability to handle more than 2^53-1.

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