><code class="function">PQnfields</code><a id="id-1.7.3.17.7.3.1.1.2" class="indexterm"></a></span> <a href="#LIBPQ-PQNFIELDS-1" class="id_link">#</a></dt><dd><p>
       Returns the number of columns (fields) to be copied.
      </p></dd><dt id="LIBPQ-PQBINARYTUPLES-1"><span class="term"><code class="function">PQbinaryTuples</code><a id="id-1.7.3.17.7.3.2.1.2" class="indexterm"></a></span> <a href="#LIBPQ-PQBINARYTUPLES-1" class="id_link">#</a></dt><dd><p>
       0 indicates the overall copy format is textu