Claudio Freire wrote: > On Fri, Apr 6, 2018 at 11:00 AM, Alvaro Herrera <alvhe...@alvh.no-ip.org> > wrote:
> > FWIW I liked the idea of having this abstraction possibly do other > > things -- for instance to vacuum brin indexes you'd like to mark index > > tuples as "containing tuples that were removed" and eventually > > re-summarize the range. With the current interface we cannot do that, > > because vacuum expects brin vacuuming to ask for each heap tuple "is > > this tid dead?" and of course we don't have a list of tids to ask for. > > So if we can ask instead "how many dead tuples does this block contain?" > > brin vacuuming will be much happier. > > I don't think either patch gives you that. > > The bulkdelete interface is part of the indexam and unlikely to change > in this patch. I'm sure you're correct. I was just saying that with the abstract interface it is easier to implement what I suggest as a follow-on patch. -- Álvaro Herrera https://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
