On Thu, Sep 6, 2012 at 11:49 AM, Ian Lynagh
Someone pointed out that one disadvantage of traditional databases is that they discourage you from writing as if everything was Haskell datastructures in memory. For example, if you have things of type data Foo = Foo { str :: String, bool :: Bool, ints :: [Int] } stored in a database then you could write either: foo <- getFoo 23 print $ bool foo or b <- getFooBool 23 print b
Using Bryan's mysql-simple library makes mapping between Haskell data types and SQL records quite straightforward (you write one type class instance).
Has anyone else got any thoughts?
I've argued in the past that we should use a SQL database, for mostly the same reasons as you gave above, with the addition that I don't anything but old and battle-tested technology with data as important as the Hackage data. -- Johan