database_limits.rb

# config/initializers/database_limits.rb
module ActiveRecord
  module ConnectionAdapters
    module DatabaseLimits
      def index_name_length
        #this is a monkey patch to get the ms sql db schema to work in sqlite.
        #errors with the names in sql server being to long for sqlite cause of
        #of the original 64 character limit. Switch it to 84 to allow the longer
        #names.
        84
      end
    end
  end
end