Simon Riggs <simon(at)2ndQuadrant(dot)com> writes:
> The reason we run a shutdown checkpoint is to prevent needing to
> re-enter recovery if we crash after promotion.
That's *a* reason, it's not necessarily the only reason. This proposal
worries me, especially your blithe dismissal of the timeline issues;
but in any case I would not trust it without a detailed review of all
WAL replay activities, which you don't sound to have done.
regards, tom lane