sqlize-value does not SQLize Dates, Instants, etc. correctly

[robhanlon22]

Since sqlize-value falls back to str when the type is not specially handled, some things that need to be quoted aren't:

(format (-> (select :*) 
            (from :foo) 
            (where [:= :t (java.time.Instant/parse "2020-04-03T00:00:00.00Z")])) 
        {:inline true})

;; => ["SELECT * FROM foo WHERE t = 2020-04-03T00:00:00Z"]

I see that there's a special case for java.util.UUIDs but it does seem like adding special cases could quickly get unwieldy. Would it be excessive to introduce a protocol that allows for extension of sqlize-value? Otherwise adding fixes will quickly become a game of Whac-A-Mole 😆

[seancorfield]

Yeah, at this point it probably makes sense to turn that into an extension point.