SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 1)
    Asterisk
   TablesInSelectQuery (children 2)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier system.one (alias l)
    TablesInSelectQueryElement (children 2)
     TableExpression (children 1)
      Function numbers (alias r) (children 1)
       ExpressionList (children 1)
        Literal UInt64_1
     TableJoin (children 1)
      ExpressionList (children 1)
       Identifier dummy (alias number)
