Suggest an alternative to

packed-multikey-map

Efficient “spreadsheet table” like, “rectangular” Haskell maps with multiple marginals.

Why do you think that https://github.com/lehins/massiv is a good alternative to packed-multikey-map

A URL to the alternative repo (e.g. GitHub, GitLab)

Here you can share your experience with the project you are suggesting or its comparison with packed-multikey-map. Optional.

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