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https://issues.apache.org/jira/browse/SOLR-2632?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13059432#comment-13059432
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Koji Sekiguchi commented on SOLR-2632:
--------------------------------------
Ok, I checked HighlightComponent and QParser impls. HighlightComponent calls
QParser.getHighlightQuery() to get Query to be highlighted. When you set
+inStock:true +_query_:"{!boost b=$dateboost v=$qq defType=dismax}" to q
parameter, QParser is LuceneQParser, and its getHighlightQuery() is:
{code}
public Query getHighlightQuery() throws ParseException {
return getQuery();
}
{code}
and it returns BooleanQuery. If you set {!boost b=$dateboost v=$qq
defType=dismax} to q parameter, QParser's getHighlightQuery() is:
{code}
public Query getHighlightQuery() throws ParseException {
return baseParser.getHighlightQuery();
}
{code}
and where baseParser is DisMaxQParser then it returns DisjunctionMaxQuery.
> Highlighting does not work for embedded boost query that boosts a dismax query
> ------------------------------------------------------------------------------
>
> Key: SOLR-2632
> URL: https://issues.apache.org/jira/browse/SOLR-2632
> Project: Solr
> Issue Type: Bug
> Components: highlighter
> Affects Versions: 1.4.1, 3.2, 3.3
> Environment: Linux.
> Reproduced in different machines with different Linux distributions and
> different JDK's.
> Solr 3.3 and Lucidworks for solr 1.4.1 and 3.2.
> Reporter: Juan Antonio Farré Basurte
> Priority: Minor
> Labels: _query_, boost, dismax, edismax, embedded, highlighting,
> hl.fl, query
>
> 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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