Highlighting does not work for embedded boost query that boosts a dismax query
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Key: SOLR-2632
URL: https://issues.apache.org/jira/browse/SOLR-2632
Project: Solr
Issue Type: Bug
Components: highlighter
Affects Versions: 3.2, 1.4.1
Environment: Linux.
Reproduced in different machines with different Linux distributions and
different JDK's.
Lucidworks for solr 1.4.1 and 3.2.
Reporter: Juan Antonio Farré Basurte
Priority: Minor
I need to issue a dismax query, with date boost (I'd like to use the
multiplicative boost provided by boost queries) and also filtering for other
fields with too many possible distinct values to fit in a filter query. To
achieve this, I use the boost query as a nested query using the pseudofield
_query_. I also need highlighting for the fields used in the dismax query, but
highlighting does not work. If I just use the boosted dismax query without
embedding it inside another query, it works correctly. If I use bf instead of a
boost query, and embed directly the dismax query, it works too, but hl.fl needs
to be specified.
It's a bit complicated to explain, so, I'll give examples using the example
data that comes with solr (the problem is reproducible in the example solr
distribution, not only in my concrete project).
http://localhost:8983/solr/select?q=%2binStock:true%20%2b_query_:%22{!boost%20b=$dateboost%20v=$qq%20defType=dismax}%22&qq=test&qf=name&dateboost=recip%28ms%28NOW,last_modified%29,3.16e-11,1,1%29&hl=true&hl.fl=name
For this query, highlighting does not work. Specifying hl.fl or not, does not
influence the result. The result is:
<lst name="highlighting">
<lst name="GB18030TEST"/>
<lst name="UTF8TEST"/>
</lst>
http://localhost:8983/solr/select?q=_query_:%22{!boost%20b=$dateboost%20v=$qq%20defType=dismax}%22&qq=test&qf=name&dateboost=recip%28ms%28NOW,last_modified%29,3.16e-11,1,1%29&hl=true&hl.fl=name
This doesn't work either. Same result.
http://localhost:8983/solr/select?q={!boost b=$dateboost v=$qq
defType=dismax}&qq=test&qf=name&dateboost=recip(ms(NOW,last_modified),3.16e-11,1,1)&hl=true
In this case, hightlighting works correctly:
<lst name="highlighting">
<lst name="GB18030TEST">
<arr name="name">
<str><em>Test</em> with some GB18030 encoded characters</str>
</arr>
</lst>
<lst name="UTF8TEST">
<arr name="name">
<str><em>Test</em> with some UTF-8 encoded characters</str>
</arr>
</lst>
</lst>
http://localhost:8983/solr/select?q=%2BinStock:true%20%2B_query_:%22{!dismax%20v=$qq}%22&qq=test&qf=name&bf=recip%28ms%28NOW,last_modified%29,3.16e-11,1,1%29&hl=true&hl.fl=name
This also works. Same result as before. But in this case hl.fl is needed.
Without it, highlighting does not work, either.
Thanks.
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