Re: [hibernate-dev] [AND] Search: changing the way we search
On 04 Mar 2014, at 12:24, Guillaume Smet <guillaume.smet(a)gmail.com> wrote:
Hi Emmanuel,
On Tue, Mar 4, 2014 at 11:09 AM, Emmanuel Bernard
<emmanuel(a)hibernate.org> wrote:
> If I understand you, you wan to find several and words and in and my and content in
title or in summary or in content but all terms should be present in one of the field. Is
that correct? What's the use case behind?
It's probably the most common use case we have.
Let's say you have an entity called "Hotel whatever" and in its
description it says it does have a swimming pool but the word "hotel"
doesn't appear in the description (my example isn't the best chosen
but I think you can easily imagine it does happen on real data).
Our user is looking for "hotel swimming pool", and we want "Hotel
whatever" to match.
OK so you want the words hotel + swimming pool to be present somewhere in the sum of the
corpus of title and description. That’s the second case I was describing then. Indeed it
kinda fails if you don’t order by score but rather alphabetically or by distance.
Have you considered the following: your query should only consider the top n, or the
results whose score reaches 70% of the top score and then do your business sort on this
subset.
Anyways, to address this, one need to target fields that are:
- using the same fieldbridge
- using the same analyzer
- do the trick I was describing around filters like ngrams (and then or)