SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function equals (children 1)
     ExpressionList (children 2)
      Function array (children 1)
       ExpressionList
      Function multiSearchAllPositionsUTF8 (children 1)
       ExpressionList (children 2)
        Literal \'\\0\'
        Function CAST (children 1)
         ExpressionList (children 2)
          Function array (children 1)
           ExpressionList
          Literal \'Array(String)\'