Very similar to the left-right primitive. https://docs.rs/left-right/latest/left_right/ https://docs.rs/left-right/latest/left_right/ My understanding is that

Very similar to the left-right primitive. https://docs.rs/left-right/latest/left_right/ https://docs.rs/left-right/latest/left_right/ My understanding is that this technique is older than the linked implementation (though independently rediscovered), but notably, this implementation was written to support a different high concurrency SQL database (for some definition of that) called Noria.