The external indexam use case doesn't impress me either, and Tom seems to agree (http://archives.postgresql.org/message-id/24006.1221483...@sss.pgh.pa.us).
Just for correctness - there is one external index http://www.cs.purdue.edu/spgist/
-- Teodor Sigaev E-mail: teo...@sigaev.ru WWW: http://www.sigaev.ru/ -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers