Hibernate Search 3.3: Field Query doesnt work

shailesh.mangal · **Posted:** Wed Feb 02, 2011 3:07 pm

We recently upgraded to 3.3 and noticed that our field queries http://lucene.apache.org/java/3_0_2/queryparsersyntax.html#Fields stopped working. This used to work in previous version. We use keyword search on multiple fields, do we need to change anything there?

Code:

luceneQuery = testQB.bool().should(testQB.keyword().onField("tc.name").boostedTo((float) 2).matching(words).createQuery())
                     .should(testQB.keyword().onField("tc.description").boostedTo((float) 1).matching(words).createQuery())
                     .
                     .
                     .
                     .should(testQB.keyword().onField("tc.comments").boostedTo((float) 2).matching(words).createQuery())
                     .createQuery();

Search actually works fine but doesnt limit the result to that particular field (which it used to).
e.g. searching for xyz and tc.name:xyz will yield same result (in other word, it will match xyz in tc.comments and tc.description ignoring the specified field).

Some obvious we are missing?

sanne.grinovero · **Posted:** Wed Feb 02, 2011 7:49 pm

well since Lucene's "should" means roughly the boolean opertor "OR" (the only difference is the way the scores are calculated), it looks like you have put the value xyz in OR on all fields, so what you say is expected: if any of those fields contains "xyz" it will match.

What is your goal?

shailesh.mangal · **Posted:** Wed Feb 02, 2011 8:24 pm

for the field query, we would like to limit it to only that field. We used to use MultiFieldQueryParser (before upgrading to 3.3), should we go back to using that?

sanne.grinovero · **Posted:** Wed Feb 02, 2011 9:10 pm

if you only want to search one specific field, you definitely don't need MultiFieldQueryParser.
Just avoid mentioning the other fields in the QueryBuilder.
I'm quite confused, you mentioned before that

Quote:

We use keyword search on multiple fields

: so multiple fields. please write an example of what you want to obtain.

shailesh.mangal · **Posted:** Wed Feb 02, 2011 9:34 pm

sorry about confusion. What we want is free form search, user can type any text and search across multiple fields brings the result based on ranking. But in certain scenarios, user may want to run specific search on a particular field, we want to accomodate the same.
Example:
Search xyz
Expected result, search for all the fields having word xyz, and present the ranked results

Search tc.name:xyz
Expected result, search for only name field having word xyz, and present the results

We have no logic at back end trying to detect the difference and we leave it to parser to apply field filter.

Really boils down to, should we continue using MultiFieldQueryParser or switch to DSL.

sanne.grinovero · **Posted:** Thu Feb 03, 2011 7:51 am

Ok, now I understood.
MultiFieldQueryParser is more appropriate to parse user input. Actually the DSL isn't able to provide such a query right now: http://opensource.atlassian.com/projects/hibernate/browse/HSEARCH-634