><p>
       The <code class="command">COPY</code> data stream sent by a series of calls
       to <a class="xref" href="libpq-copy.html#LIBPQ-PQPUTLINE"><code class="function">PQputline</code></a> has the same format as that
       returned by <a class="xref" href="libpq-copy.html#LIBPQ-PQGETLINEASYNC"><code class="function">PQgetlineAsync</code></a>, except that
       applications are not obliged to send exactly one data row per
       <a class="xref" href="libpq-copy.html#LIBPQ-PQPUTLINE"><code class="fu