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https://issues.apache.org/jira/browse/LUCENE-9542?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17208576#comment-17208576
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Christine Poerschke commented on LUCENE-9542:
---------------------------------------------
Thanks [~krishan1390] for opening this issue with a link into the code!
{quote}Score returned in search request is original score and not reranked
score post ...
{quote}
Could you share more details on how to observe and reproduce the issue?
I just tried the following steps on {{branch_7_7}} and {{branch_8x}} and it
_seemed_ that the reranked score was being returned, perhaps a particular kind
of query or re-ranking query is needed to encounter the issue?
{code}
git checkout $branch # branch_7_7 or branch_8x
cd solr ; ant dist server # on master branch use gradle equivalent instead
bin/solr start -e techproducts
curl 'http://localhost:8983/solr/techproducts/select?rows=3&fl=id,score&q=*:*'
curl
'http://localhost:8983/solr/techproducts/select?rows=3&fl=id,score&q=*:*&rq=\{!rerank+reRankQuery=id:VDBDB1A16\}'
curl
'http://localhost:8983/solr/techproducts/select?rows=3&fl=id,score&q=*:*&rq=\{!rerank+reRankQuery=id:VDBDB1A16+reRankWeight=1\}'
curl
'http://localhost:8983/solr/techproducts/select?rows=3&fl=id,score&q=*:*&rq=\{!rerank+reRankQuery=id:VDBDB1A16+reRankWeight=2\}'
curl
'http://localhost:8983/solr/techproducts/select?rows=3&fl=id,score&q=*:*&rq=\{!rerank+reRankQuery=id:VDBDB1A16+reRankWeight=3\}'
bin/solr stop
{code}
> Score returned in search request is original score and not reranked score
> -------------------------------------------------------------------------
>
> Key: LUCENE-9542
> URL: https://issues.apache.org/jira/browse/LUCENE-9542
> Project: Lucene - Core
> Issue Type: Bug
> Affects Versions: 8.0
> Reporter: Krishan
> Priority: Major
>
> Score returned in search request is original score and not reranked score
> post the changes in https://issues.apache.org/jira/browse/LUCENE-8412.
> Commit -
> [https://github.com/apache/lucene-solr/commit/55bfadbce115a825a75686fe0bfe71406bc3ee44#diff-4e354f104ed52bd7f620b0c05ae8467d]
> Specifically -
> if (cmd.getSort() != null && query instanceof RankQuery == false &&
> (cmd.getFlags() & GET_SCORES) != 0) {
> TopFieldCollector.populateScores(topDocs.scoreDocs, this, query);
> }
> in SolrIndexSearcher.java recomputes the score but outputs only the original
> score and not the reranked score.
>
> The issue is cmd.getQuery() is a type of RankQuery but the "query" variable
> is a boolean query and probably replacing query with cmd.getQuery() should be
> the right fix for this so that the score is not overriden for rerank queries
>
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