* unit of work

* option echo for Database.new, adds a logger to STDOUT




* Database introspection. schema extraction and database dumping and copying.

* Add Dataset#update_or_create:

  DB[:items].filter(:name => 'abc').update_or_create(:price => 100)
  
  # equivalent to:
  
  if (DB[:items].filter(:name => 'abc').update(:price => 100) < 1)
    DB[:items] << {:name => 'abc', :price => 100}

  MySQL also supports a REPLACE INTO syntax which does the same:

    REPLACE INTO items SET price = 100 WHERE name = 'abc'

* Adapters: 

  frontbase, interbase (http://ruby-dbi.rubyforge.org/)
  openbase (http://ruby-openbase.rubyforge.org)

* Sharding

* Generating an object graph from a result-set.