Обсуждение: XLOG_PARAMETER_CHANGE (WAL record) missing two params in its desc routine

On 12/05/2014 04:54 AM, Michael Paquier wrote:
> Hi all,
>
> While reading the code in this area this morning, I noticed that
> wal_log_hints and track_commit_timestamp are not mentioned in the desc
> routine of XLOG_CHANGE_PARAMETER. Also, it is not mentioned in
> postgresql.conf.sample that a value update of wal_log_hints requires a
> system restart.
>
> In order to fix those things, attached are two patches:
> - patch 1 should be applied back to 9.4 where wal_log_hints has been added

You got the wal_level and wal_log_hints strings backwards:

rmgr: XLOG        len (rec/tot):     24/    50, tx:          0, lsn: 
0/07172488, prev 0/07172418, desc: PARAMETER_CHANGE max_connections=100 
max_worker_processes=8 max_prepared_xacts=0 max_locks_per_xact=64 
wal_level=false wal_log_hints=hot_standby

Fixed that, and changed "true"/"false" to "on"/"off", as that's more 
common phrasing for boolean GUCs.

> - patch 2 is master-only, and needs to be applied on top of patch 1.

Same here.

Committed both patches with those fixes, thanks!

- Heikki