On 7 April 2018 at 15:12, Bruce Momjian <br...@momjian.us> wrote: > Uh, where are we on this patch? It isn't going to make it into PG 11? > Feature development for this has been going on for years.
Unfortunately, I think there's no way that this will be ready for PG11. So far, I have only read parts of the patch, focusing mainly on the planner changes, and how it will make use of the new statistics. I think there are still issues to work out in that area, although I haven't read the latest version yet, I have some doubts about the new approach described. Looking back at the history of this patch, it appears to have moved through all 4 PG11 commitfests with fairly minimal review, never becoming Ready for Committer. That's a real shame because I agree that it's an important feature, but IMO it's not yet in a committable state. I feel bad saying that, because the patch hasn't really had a fair chance to-date, despite Tomas' efforts and quick responses to all review comments. At this stage though, all I can say is that I'll make every effort to keep reviewing it, and I hope Tomas will persist, so that it has a better chance in PG12. Regards, Dean