<span class="p">,</span> <span class="n">Y</span><span class="p">))</span>
                    <span class="bp">self</span><span class="o">.</span><span class="n">_joinsCnt</span> <span class="o">+=</span> <span class="mi">1</span>
                <span class="bp">self</span><span class="o">.</span><span class="n">_itemSetBuffer</span><span class="o">.</span><span class="n">insert</span><span class="p">(</span><span class="n">prefixLen</span><span class="p">,</span> <span class="n">X</span><span class="o">.