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