[Haskell-cafe] Declarative database migrations

[Tobias Florek]

hi,

 > database migrations in haskell.

i strongly advise (general) you to look not lock yourself into database 
migration within a host language. i have yet to see a db migration 
scheme that supports good rollback _and_ is expressive enough.

have a look into [sqitch](http://sqitch.org/) for a very good database 
change management system.

cheers,
  tobias florek