That is definitely something I think Hibernate Search lacks. Offer an implementation that can in a robust way swallow a user provided query input and create the right query. This is not something we have had time to explore seriously.
BTW DisjunctionMaxQuery (which is what I refered to in .dismax()) is used in the DisMax query parser of Slor but is only a component of it. So I see your requested feature as a different one than what I discussed in this email. Still a useful one. Sanne, how do you think we should follow up? On Thu 2014-02-20 16:10, Guillaume Smet wrote: > Hi Emmanuel, > > On Thu, Feb 20, 2014 at 10:19 AM, Emmanuel Bernard > <emman...@hibernate.org> wrote: > > ## DisMax as top level DSL feature > > > > Should we add .dismax() like we did bool()? > > I am hard pressed to find a use case. > > It's a project I have for a long time. I wanted to have an intern this > year to work on this and a few other search features I have in mind > for HSearch. It becomes more and more obvious I won't have the time to > work on this myself but I wanted to be able to play with this idea > anyway. That said, I haven't found anyone so far... > > Background: I worked a lot with Apache Solr before switching to Java > and Hibernate Search. > > Apache Solr has a (e)dismax query parser which IMHO is very very useful. > > The principle is the following: > - you have a text to search typically: hibernate search is great > - you tell him to search it in title^5 content^2 > - you tell him that starting with 3 words, it can ignore 1 (mm > parameter = minimum should match) > and it builds a search query doing exactly that. > > The edismax query parser is quite advanced, sometimes a little buggy > but it's usually what I want when I implement a search engine. The > only thing we have added so far in our Solr powered application is the > fact that we also support search in fields with a fuzzy query. So you > can have: title~0.8^5 content~0.8^2 (it's not perfect as fuzzy queries > are weird but it does the job and you use it only if you want it). > > Reference is here: https://wiki.apache.org/solr/ExtendedDisMax > > The most interesting parameters to understand the principle are qf and > mm, but the others are quite useful too. > > Happy to discuss this subject. > > -- > Guillaume _______________________________________________ hibernate-dev mailing list hibernate-dev@lists.jboss.org https://lists.jboss.org/mailman/listinfo/hibernate-dev
