SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 1)
    Function round (children 1)
     ExpressionList (children 2)
      Function quantileDD (children 2)
       ExpressionList (children 1)
        Function minus (children 1)
         ExpressionList (children 2)
          Identifier number
          Literal UInt64_10
       ExpressionList (children 2)
        Literal Float64_0.01
        Literal Float64_0.5
      Literal UInt64_2
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Function numbers (children 1)
       ExpressionList (children 1)
        Literal UInt64_21
