I didn't like this style because it is not descriptive enough. It is also not astyle adopted by Postgres. I suggest to add something like "This field wasintroduced in version 2" or "This field is available since version 2" after thefield description.
+ Xid of the sub-transaction (will be same as xid of the transaction for top-level+ transactions).+</para>Although, sub-transaction is also used in the documentation, I suggest to usesubtransaction. Maybe change the other sub-transaction occurrences too.
pgsql-hackers by date:
Соглашаюсь с условиями обработки персональных данных