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https://issues.apache.org/jira/browse/SOLR-6118?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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David Smiley reassigned SOLR-6118:
----------------------------------

    Assignee: David Smiley

> expand.sort doesn't work with function queries
> ----------------------------------------------
>
>                 Key: SOLR-6118
>                 URL: https://issues.apache.org/jira/browse/SOLR-6118
>             Project: Solr
>          Issue Type: Bug
>    Affects Versions: 4.8
>            Reporter: David Smiley
>            Assignee: David Smiley
>
> The new ExpandComponent doesn't support function queries in the 
> {{expand.sort}} parameter, such as geodist() for example.  Here's the stack 
> trace if you try:
> {noformat}
> 527561 [qtp1458849419-16] ERROR org.apache.solr.servlet.SolrDispatchFilter  – 
> null:java.lang.IllegalStateException: SortField needs to be rewritten through 
> Sort.rewrite(..) and SortField.rewrite(..)
>       at org.apache.lucene.search.SortField.getComparator(SortField.java:433)
>       at 
> org.apache.lucene.search.FieldValueHitQueue$OneComparatorFieldValueHitQueue.<init>(FieldValueHitQueue.java:66)
>       at 
> org.apache.lucene.search.FieldValueHitQueue.create(FieldValueHitQueue.java:171)
>       at 
> org.apache.lucene.search.TopFieldCollector.create(TopFieldCollector.java:1133)
>       at 
> org.apache.lucene.search.TopFieldCollector.create(TopFieldCollector.java:1079)
>       at 
> org.apache.solr.handler.component.ExpandComponent$GroupExpandCollector.<init>(ExpandComponent.java:310)
>       at 
> org.apache.solr.handler.component.ExpandComponent.process(ExpandComponent.java:203)
>       at 
> org.apache.solr.handler.component.SearchHandler.handleRequestBody(SearchHandler.java:218)
>       at 
> org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:135)
>       at org.apache.solr.core.SolrCore.execute(SolrCore.java:1952)
> {noformat}



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