verride </span><span class="token keyword">fun </span><a href="is-allowed-as-column-default.html"><span class="token function">isAllowedAsColumnDefault</span></a><span class="token punctuation">(</span><span class="parameters "><span class="parameter ">e<span class="token operator">: </span><a href="../../org.jetbrains.exposed.v1.core/-expression/index.html">Expression</a><span class="token operator">&lt;</span><span class="token operator">*</span><span class="token operator">&gt;</span></span></span><span 