Andres Freund <and...@2ndquadrant.com> writes: > I don't like going in this direction at all: > 1) it breaks pg_upgrade. Which means many of the bigger users won't be > able to migrate to this and most packagers would carry the old > segsize around forever. > Even if we could get pg_upgrade to split files accordingly link mode > would still be broken.
TBH, I think *any* rearrangement of the on-disk storage files is going to be rejected. It seems very unlikely to me that you could demonstrate a checkpoint performance improvement from that that occurs consistently across different platforms and filesystems. And as Andres points out, the pain associated with it is going to be bad enough that a very high bar will be set on whether you've proven the change is worthwhile. regards, tom lane -- Sent via pgsql-hackers mailing list (firstname.lastname@example.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers