# File lib/uri/pgsql.rb, line 24
    def mk_connection_opts
      opts = []
      opts << '-h' << @host
      opts << '-p' << @port if @port != DEFAULT_PORT
      opts << '-U' << @user if @user
      opts
    end

# File lib/uri/pgsql.rb, line 33
    def mk_dump_opts ( out=nil )
      opts = %w[ -F c -Z 9 -C ]
      opts << '-f' << out if out
      base, table = pathname.split
      base, table = base.to_s, table.to_s
      if base =~ /[\.\/]/
        opts << table
      else
        if base =~ /\//
          raise ArgumentError, "Use database/table not #{pathname}"
        end
        opts << '-t' << table << base
      end
      opts
    end

# File lib/uri/pgsql.rb, line 50
    def save
      out = TempPath.new('dump', pathname.basename.to_s)
      d = shell.pg_dump! mk_connection_opts, mk_dump_opts(out), mk_custom_opts
      [out, d]
    end