I wrote: > The buildfarm seems less than happy with this. ... and, having now looked at the patch, I'm not surprised. Breaking stmtStartTimestamp, which is what you did, seems like an awfully side-effect-filled route to the goal. If you want to prevent monitoring from showing this, why didn't you just prevent monitoring from showing it? That is, I'd have expected some am_walsender logic in or near pgstat.c, not here.
regards, tom lane
