Galy Lee <lee(dot)galy(at)oss(dot)ntt(dot)co(dot)jp> writes:
> If we can stop at any point, we can make maintenance memory large
> sufficient to contain all of the dead tuples, then we only need to
> clean index for once. No matter how many times vacuum stops,
> indexes are cleaned for once.
I beg your pardon? You're the one who's been harping on the
table-so-large-it-takes-days-to-vacuum scenario. How you figure that
you can store all the dead TIDs in working memory?
regards, tom lane