Robert Haas <robertmh...@gmail.com> writes: > Tom Lane previously proposed extending SP-GiST to support index-only > scans. You might find that discussing worth reading, or perhaps > consider it as an alternative if GiST doesn't work out: > http://www.postgresql.org/message-id/10839.1323885...@sss.pgh.pa.us
That wasn't just a proposal, see commits 3695a555136a6d179cac8ae48d5f90171d5b30e9 and 92203624934095163f8b57b5b3d7bbd2645da2c8. But yeah, that might be a useful reference for what is likely to be involved with making GIST do it. regards, tom lane -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers