Peter Ciuffetti created SOLR-8397:
-------------------------------------
Summary: QueryScorer highlighting with join query causes classcast
exception
Key: SOLR-8397
URL: https://issues.apache.org/jira/browse/SOLR-8397
Project: Solr
Issue Type: Bug
Components: highlighter
Affects Versions: 5.3
Environment: SolrCloud 5.3.1
Reporter: Peter Ciuffetti
If you use the combination of a join query with the 'old' QueryScorer as a
highlighter, you get a classcast exception
{code}
java.lang.ClassCastException: org.apache.lucene.search.IndexSearcher cannot be
cast to org.apache.solr.search.SolrIndexSearcher
at
org.apache.solr.search.JoinQuery.createWeight(JoinQParserPlugin.java:217)
at
org.apache.lucene.search.IndexSearcher.createWeight(IndexSearcher.java:855)
at
org.apache.lucene.search.IndexSearcher.createNormalizedWeight(IndexSearcher.java:838)
at
org.apache.lucene.search.highlight.QueryTermExtractor.getTerms(QueryTermExtractor.java:131)
at
org.apache.lucene.search.highlight.QueryTermExtractor.getTerms(QueryTermExtractor.java:106)
at
org.apache.lucene.search.highlight.QueryTermExtractor.getTerms(QueryTermExtractor.java:119)
at
org.apache.lucene.search.highlight.QueryTermExtractor.getTerms(QueryTermExtractor.java:62)
at
org.apache.lucene.search.highlight.QueryTermScorer.<init>(QueryTermScorer.java:52)
at
org.apache.solr.highlight.DefaultSolrHighlighter.getQueryScorer(DefaultSolrHighlighter.java:244)
at
org.apache.solr.highlight.DefaultSolrHighlighter.getHighlighter(DefaultSolrHighlighter.java:197)
at
org.apache.solr.highlight.DefaultSolrHighlighter.doHighlightingByHighlighter(DefaultSolrHighlighter.java:586)
at
org.apache.solr.highlight.DefaultSolrHighlighter.doHighlighting(DefaultSolrHighlighter.java:428)
at
org.apache.solr.handler.component.HighlightComponent.process(HighlightComponent.java:143)
at
org.apache.solr.handler.component.SearchHandler.handleRequestBody(SearchHandler.java:277)
at
org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:143)
{code}
the query parameters that will produce this are
{code}
?hl=true
&hl.usePhraseHighlighter=false
&hl.fl=somefield
&q={!join from=x to=y}somequery
{code}
This does not happen when the default SpanScorer is used (which happens when
hl.usePhraseHighlighter=true or is unspecified)
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