Re: WAL Info messages

Simon Riggs <simon@2ndQuadrant.com> writes:
> Proposal is to use up the last rmgr id, slot 7: RM_INFO_ID. 
> Functions would be provided on primary side to send a user-defined
> binary message into WAL stream, with a single message type
> XLOG_INFO_MSG. (Superuser only, though can be wrapped and given to
> trusted users).

Seems like a frammish that we could maybe worry about a few months from
now, after the core patch has settled down.

I also dislike reserving a whole RM_ID just for this.  If we are only
going to send one type of message it seems like it could be one infomask
type within an existing RM_ID.
        regards, tom lane