# File lib/criteria/sql.rb, line 202
    def _mkfrom(s, *args)
      # FROM clause
      s << " FROM "
      s << "#{@_parent.table}"    if(@_parent.table && args.size == 0)
      s << args.map { |i| i.is_a?(SQLCriterion) ? i._parent.table : i }.uniq.join(", ")
    end