SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 2)
    Function toInt32 (alias x) (children 1)
     ExpressionList (children 1)
      Identifier number
    Function roundDown (children 1)
     ExpressionList (children 2)
      Identifier x
      Function array (children 1)
       ExpressionList (children 4)
        Function e (children 1)
         ExpressionList
        Function pi (children 1)
         ExpressionList
        Function pi (children 1)
         ExpressionList
        Function e (children 1)
         ExpressionList
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier system.numbers
   Literal UInt64_10