SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 1)
    Identifier s
   TablesInSelectQuery (children 2)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier t1 (alias lhs)
    TablesInSelectQueryElement (children 2)
     TableExpression (children 1)
      Subquery (alias rhs) (children 1)
       SelectWithUnionQuery (children 1)
        ExpressionList (children 1)
         SelectQuery (children 3)
          ExpressionList (children 1)
           Asterisk
          TablesInSelectQuery (children 1)
           TablesInSelectQueryElement (children 1)
            TableExpression (children 1)
             TableIdentifier t2
          Function equals (children 1)
           ExpressionList (children 2)
            Identifier id2
            Literal UInt64_2
     TableJoin (children 1)
      Function equals (children 1)
       ExpressionList (children 2)
        Identifier lhs.id
        Identifier rhs.id2
