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> Humans represent time vaguely rather than precisely. Computers tend not to.

Hi. A colleague of mine is working on a large medieval dataset than contains many dates and recently explained this concept of vagueness to me. What's the standard way for dealing with this in MySQL for instance, how do comparisons and orderings work for a collection of vague dates?

You're saying ISO 8601 can do this, and MySQL can talk ISO 8601?

I don't know much about MySQL, sorry. Mostly I use Postgres. I'd suggest the only really good way of solving is either something like tstzrange or daterange in Postgres. Or defining your own datatype, which most databases don't support.


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