On Mon, Apr 4, 2011 at 12:38 PM, Alexander Korotkov <aekorot...@gmail.com> wrote: > relatively small when q <= 5. Accordingly, I think we should expect indexes > to be usable with at least with q = 5.
I defer to your opinion on this, since you know more about it than I do. But I think it would still be worthwhile to write a quick Perl script and calculate the number q-grams in various sample texts for various values of q. The worst case is surely exponential in q, so it'd be nice to have some evidence of what the real-world behavior is. -- Robert Haas EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
