ral">PGRES_COMMAND_OK</code> for success or
   <code class="literal">PGRES_FATAL_ERROR</code> if some problem was encountered.
   At this point further SQL commands can be issued via
   <a class="xref" href="libpq-exec.html#LIBPQ-PQEXEC"><code class="function">PQexec</code></a>.  (It is not possible to execute other SQL
   commands using the same connection while the <code class="command">COPY</code>
   operation is in progress.)
  </p><p>
   If a <code class="command">COPY</code> command is issued via
   <