SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function quantilesTiming (children 2)
     ExpressionList (children 1)
      Function arrayJoin (children 1)
       ExpressionList (children 1)
        Function range (children 1)
         ExpressionList (children 1)
          Literal UInt64_100000
     ExpressionList (children 1)
      Literal Float64_0.99