"Deleted" and "dead" are separate columns.
> So not only would it not make sense semantically, it would break if a third means were introduced.
If that was the intention, it would seem like a bad design decision to me. And actually what you assume to be the reasoning, is exactly what should be avoided. Which makes it a bad thing.
This is a limitation not because of having the bool value be represented by an int (or rather "be presented as"), but because of the t y p e , being an integer.
My fork of arc supports booleans directly.
In other words, I can guarantee beyond a shadow of a doubt that dead and deleted are both booleans, not integers.
In this particular case, I agree that you should record the most raw form. Which would be a boolean column of trues and nulls -perfectly handled by parquet.