SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 2)
    Literal UInt64_2 (alias nelems)
    Function arrayResize (children 1)
     ExpressionList (children 2)
      Function arrayPartialSort (children 1)
       ExpressionList (children 2)
        Identifier nelems
        Literal Array_[NULL, \'9\', \'4\', \'8\', \'10\', \'5\', \'2\', \'3\', \'7\', \'1\', \'6\']
      Identifier nelems
