SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 5)
   ExpressionList (children 2)
    Identifier k
    Function finalizeAggregation (children 1)
     ExpressionList (children 1)
      Function quantilesTimingState (children 2)
       ExpressionList (children 1)
        Identifier x
       ExpressionList (children 1)
        Literal Float64_0.5
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Subquery (children 1)
       SelectWithUnionQuery (children 1)
        ExpressionList (children 1)
         SelectQuery (children 3)
          ExpressionList (children 2)
           Function intDiv (alias k) (children 1)
            ExpressionList (children 2)
             Identifier number
             Function if (alias d) (children 1)
              ExpressionList (children 3)
               Function equals (children 1)
                ExpressionList (children 2)
                 Identifier number
                 Literal UInt64_9223372036854775807
               Literal Int64_-2
               Function if (children 1)
                ExpressionList (children 3)
                 Function equals (children 1)
                  ExpressionList (children 2)
                   Identifier number
                   Literal UInt64_3
                 Function equals (children 1)
                  ExpressionList (children 2)
                   Identifier number
                   Function if (children 1)
                    ExpressionList (children 3)
                     Function equals (children 1)
                      ExpressionList (children 2)
                       Identifier number
                       Literal UInt64_1
                     Literal NULL
                     Literal UInt64_3
                 Literal UInt64_1
           Function modulo (alias x) (children 1)
            ExpressionList (children 2)
             Identifier number
             Identifier d
          TablesInSelectQuery (children 1)
           TablesInSelectQueryElement (children 1)
            TableExpression (children 1)
             TableIdentifier system.numbers
          Literal UInt64_100000
   ExpressionList (children 1)
    Identifier k
   ExpressionList (children 1)
    OrderByElement (children 1)
     Identifier k
   Literal UInt64_5