On Fri, Sep 30, 2011 at 1:08 AM, Heikki Linnakangas < heikki.linnakan...@enterprisedb.com> wrote:
> At every call, gtrgm_penalty() has to calculate the signature for newitem, > using makesign(). That's an enormous waste of effort, but there's currently > no way gtrgm_penalty() to avoid that. If we could call makesign() only on > the first call in the loop, and remember it for the subsequent calls, that > would eliminate the need for any micro-optimization in makesign() and make > inserting into a trigram index much faster (including building the index > from scratch) > Isn't it possible to cache signature of newitem in gtrgm_penalty like gtrgm_consistent do this for query? ------ With best regards, Alexander Korotkov.
