escape_bytea

# File activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb, line 391
        def escape_bytea(s)
          if PGconn.respond_to? :escape_bytea
            self.class.send(:define_method, :escape_bytea) do |s|
              PGconn.escape_bytea(s) if s
            end
          else
            self.class.send(:define_method, :escape_bytea) do |s|
              if s
                result = ''
                s.each_byte { |c| result << sprintf('\\\\%03o', c) }
                result
              end
            end
          end
          escape_bytea(s)
        end