Unix domain socket.
         </para>
        </listitem>
      </varlistentry>

      <varlistentry id="app-psql-prompting-gt">
        <term><literal>%&gt;</literal></term>
        <listitem><para>The port number at which the database server is listening.</para></listitem>
      </varlistentry>

      <varlistentry id="app-psql-prompting-n">
        <term><literal>%n</literal></term>
        <listitem>
         <para>
          The database session user name.  (The expansion of this
          value might change during a database session as the result
          of the command <command>SET SESSION
          AUTHORIZATION</command>.)
         </para>
        </listitem>
      </varlistentry>

      <varlistentry id="app-psql-prompting-s">
        <term><literal>%s</literal></term>
        <listitem><para>The name of the service.</para></listitem>
      </varlistentry>

      <varlistentry id="app-psql-prompting-slash">
        <term><literal>%/</literal></term>
        <listitem><para>The name of the current database.</para></listitem>
      </varlistentry>

      <varlistentry id="app-psql-prompting-tilde">
        <term><literal>%~</literal></term>
        <listitem><para>Like <literal>%/</literal>, but the output is <literal>~</literal>
         (tilde) if the database is your default database.</para></listitem>
      </varlistentry>

      <varlistentry id="app-psql-prompting-numbersign">
        <term><literal>%#</literal></term>
        <listitem>
         <para>
          If the session user is a database superuser, then a
          <literal>#</literal>, otherwise a <literal>&gt;</literal>.
          (The expansion of this value might change during a database
          session as the result of the command <command>SET SESSION
          AUTHORIZATION</command>.)
         </para>
        </listitem>
      </varlistentry>

      <varlistentry id="app-psql-prompting-p">
        <term><literal>%p</literal></term>
        <listitem>
         <para>The process ID of the backend currently connected to.</para>
        </listitem>
      </varlistentry>

      <varlistentry id="app-psql-prompting-p-uc">
        <term><literal>%P</literal></term>
        <listitem>
        <para>
        Pipeline status: <literal>off</literal> when not in a pipeline,
        <literal>on</literal> when in an ongoing pipeline or
        <literal>abort</literal> when in an aborted pipeline.
        </para>
        </listitem>
      </varlistentry>

      <varlistentry id="app-psql-prompting-r">
        <term><literal>%R</literal></term>
        <listitem>
        <para>
        In prompt 1 normally <literal>=</literal>,
        but <literal>@</literal> if the session is in an inactive branch of a
        conditional block, or <literal>^</literal> if in single-line mode,
        or <literal>!</literal> if the session is disconnected from the
        database (which can happen if <command>\connect</command> fails).
        In prompt 2 <literal>%R</literal> is replaced by a character that
        depends on why <application>psql</application> expects more input:
        <literal>-</literal> if the command simply wasn't terminated yet,
        but <literal>*</literal> if there is an unfinished
        <literal>/* ... */</literal> comment,
        a single quote if there is an unfinished quoted string,
        a double quote if there is an unfinished quoted identifier,
        a dollar sign if there is an unfinished dollar-quoted string,
        or <literal>(</literal> if there is an unmatched left parenthesis.
        In prompt 3 <literal>%R</literal> doesn't produce anything.
        </para>
        </listitem>
      </varlistentry>

      <varlistentry id="app-psql-prompting-x">
        <term><literal>%x</literal></term>
        <listitem>
        <para>
        Transaction status: an empty string when not in a transaction
        block, or <literal>*</literal> when in a transaction block, or
        <literal>!</literal> when in a failed transaction block,