.8.14.5"><h2>Description</h2><p>
   <code class="function">SPI_is_cursor_plan</code> returns <code class="symbol">true</code>
   if a statement prepared by <code class="function">SPI_prepare</code> can be passed
   as an argument to <code class="function">SPI_cursor_open</code>, or
   <code class="symbol">false</code> if that is not the case. The criteria are that the
   <em class="parameter"><code>plan</code></em> represents one single command and that this
   command returns tuples to the caller; for exam