e<span class="token operator">: </span><a href="../../../exposed-core/org.jetbrains.exposed.v1.core/-column/index.html">Column</a><span class="token operator">&lt;</span><a href="index.html">REF</a><span class="token operator">?</span><span class="token operator">&gt;</span><span class="token punctuation">, </span></span><span class="parameter ">factory<span class="token operator">: </span><a href="../-entity-class/index.html">EntityClass</a><span class="token operator">&lt;</span><a href="index.html">Paren