pan> <span class="cn">NULL</span><span class="op">)</span></span>
<span></span>
<span><span class="fu">ft_uniqueidentifier</span><span class="op">(</span>na <span class="op">=</span> <span class="cn">NULL</span><span class="op">)</span></span>
<span></span>
<span><span class="fu">ft_categorical</span><span class="op">(</span>aggregate_by_each_category <span class="op">=</span> <span class="cn">FALSE</span>, na <span class="op">=</span> <span class="cn">NULL</span><span class="op">)</span></span>
<span></spa