There is some good news coming from Oleg Bartunov and Alexander Korotkov about improving ranking speed: http://wiki.postgresql.org/images/2/25/Full-text_search_in_PostgreSQL_in_milliseconds-extended-version.pdf
It's worth reading their slides to gain a better understanding of PostgreSQL fulltext internals. On Wed, Mar 7, 2012 at 8:05 PM, Nicolas Grilly <nico...@gardentechno.com>wrote: > In a previous discussion thread, Oleg suggested that ts_rank is unable to > use GIN indices: > http://archives.postgresql.org/pgsql-general/2011-07/msg00351.php > > This is the only information I have about this. >
