pen </span><span class="token keyword">override </span><span class="token keyword">val </span><a href="../-mysql-dialect/supports-subquery-unions.html">supportsSubqueryUnions</a><span class="token operator">: </span><a href="https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-boolean/index.html">Boolean</a><span class="token operator"> = </span><span class="token boolean">true</span></div><div class="brief "><p class="paragraph">Returns <code class="lang-kotlin">true</code> if the dialect supports subquer