On 19 Apr 2012, at 15:42, Kunal Jain wrote: > Dear All,
Hi there, > I am developing an application using Jena along with TDB store. I have > loaded around 4 million triples in my store. A small subset of my triples is > as follows: ... > Now I want to do a free text matching for autosuggest kind functionality. I > have got this query to run against my store > ?subject vs:name ?subjectName > > FILTER regex(?subjectName, \"^Light\", \"i\") > I this query I am trying to find triples which start with a particular word, > i.e starting with 'Light'. Execution of this query is taking around 20 > seconds. While it's possible this could be improved, it's never going to be great since the search is unindexed. LARQ adds a proper free text index [1] which should be much better. This is now a separate module, I believe (Paolo?). Personally I've used a separate trie index for autocompletion, since it tends to get hammered. Damian [1] <http://incubator.apache.org/jena/documentation/larq/index.html>
