Small fixes about backup history file in doc and pg_standby

Yugo Nagata <nagata@sraoss.co.jp>

From: Yugo Nagata <nagata@sraoss.co.jp>

To: pgsql-hackers@postgresql.org

Date: 2018-06-26T08:47:52Z

Lists: pgsql-hackers

Attachments

pg_standby.patch (text/x-diff) patch
doc_backup_hisotry_file.patch (text/x-diff) patch

Hi,

While looking into the backup and recovery code, I found small documentation bugs. 
The documatation says that the backup history files can be requested for recovery, 
but it's not used by the system and not requested anymore since PG 9.0 
(commit 06f82b29616cd9effcaefd99c6b6e2e80697482f) and never be requested.

Attached patch (doc_backup_history_file.patch) corrects the description about this.

In addition, the current pg_standby still can handle a backup history file that are
never requested. It is harmless but unnecessary code. Another attached patch
(pg_standby.patch) removes this part of code.

Regards,

-- 
Yugo Nagata <nagata@sraoss.co.jp>

Commits

Fix documentation bug related to backup history file.
- 833397e73e2e 9.3.24 landed
- 4765ac057073 9.4.19 landed
- ef2deca1b77e 9.5.14 landed
- d06d92cd2d5e 9.6.10 landed
- 09879f753635 10.5 landed
- bbbbc2f8f3f7 11.0 landed
Write an end-of-backup WAL record at pg_stop_backup(), and wait for it at
- 06f82b29616c 9.0.0 cited