SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function equals (children 1)
     ExpressionList (children 2)
      Literal UInt64_0
      Function multiSearchFirstIndexUTF8 (children 1)
       ExpressionList (children 2)
        Literal \'\\0\'
        Function CAST (children 1)
         ExpressionList (children 2)
          Function array (children 1)
           ExpressionList
          Literal \'Array(String)\'