SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 6)
    Function toUInt8 (alias x) (children 1)
     ExpressionList (children 1)
      Identifier number
    Function round (children 1)
     ExpressionList (children 1)
      Identifier x
    Function roundBankers (children 1)
     ExpressionList (children 1)
      Identifier x
    Function floor (children 1)
     ExpressionList (children 1)
      Identifier x
    Function ceil (children 1)
     ExpressionList (children 1)
      Identifier x
    Function trunc (children 1)
     ExpressionList (children 1)
      Identifier x
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier system.numbers
   Literal UInt64_20