SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Asterisk
   TablesInSelectQuery (children 2)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Subquery (alias s1) (children 1)
       SelectWithUnionQuery (children 1)
        ExpressionList (children 1)
         SelectQuery (children 2)
          ExpressionList (children 1)
           Function plus (alias key) (children 1)
            ExpressionList (children 2)
             Identifier number
             Literal UInt64_2
          TablesInSelectQuery (children 1)
           TablesInSelectQueryElement (children 1)
            TableExpression (children 1)
             Function numbers (children 1)
              ExpressionList (children 1)
               Literal UInt64_4
    TablesInSelectQueryElement (children 2)
     TableExpression (children 1)
      TableIdentifier dict_flat (alias d)
     TableJoin (children 1)
      ExpressionList (children 1)
       Identifier key
   ExpressionList (children 2)
    OrderByElement (children 1)
     Identifier s1.key
    OrderByElement (children 1)
     Identifier d.key