config/initializers/ibm_db_adapter_ext.rb

ibm_db_adapter_ext.rb

# ensure that database is loaded
ActiveRecord::Base.connection

module ActiveRecord
  module ConnectionAdapters
    class IBM_DBAdapter
      def visitor
        @visitor ||= Arel::Visitors::IBM_DB.new self
      end

      def to_sql(arel, binds = [])
        if arel.respond_to?(:ast)
          visitor.accept(arel.ast) do
            quote(*binds.shift.reverse)
          end
        else
          arel
        end
      end
    end
  end
end