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https://issues.apache.org/jira/browse/SOLR-2642?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13068949#comment-13068949
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Thomas Heigl commented on SOLR-2642:
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Thanks Martijn! Works perfectly.
> Sorting by function fails when using result grouping
> ----------------------------------------------------
>
> Key: SOLR-2642
> URL: https://issues.apache.org/jira/browse/SOLR-2642
> Project: Solr
> Issue Type: Bug
> Components: search
> Affects Versions: 3.3
> Reporter: Thomas Heigl
> Assignee: Martijn van Groningen
> Fix For: 3.4, 4.0
>
>
> When using result grouping, sorting by distance with geodist() fails because
> of missing weights for sorts.
> A an example of a failing query on an index with standard schema.xml looks
> like this:
> {code}
> q=*:*&group=true&group.field=user.uniqueId_s&group.main=true&group.format=grouped&sfield=user.location_p&pt=48.20927,16.3728&sort=geodist()
> asc
> {code}
> The exception thrown is:
> {code}
> Caused by: org.apache.solr.common.SolrException: Unweighted use of sort
> geodist(latlon(user.location_p),48.20927,16.3728)
> at
> org.apache.solr.search.function.ValueSource$1.newComparator(ValueSource.java:106)
> at org.apache.lucene.search.SortField.getComparator(SortField.java:413)
> at
> org.apache.lucene.search.grouping.AbstractFirstPassGroupingCollector.<init>(AbstractFirstPassGroupingCollector.java:81)
> at
> org.apache.lucene.search.grouping.TermFirstPassGroupingCollector.<init>(TermFirstPassGroupingCollector.java:56)
> at
> org.apache.solr.search.Grouping$CommandField.createFirstPassCollector(Grouping.java:587)
> at org.apache.solr.search.Grouping.execute(Grouping.java:256)
> at
> org.apache.solr.handler.component.QueryComponent.process(QueryComponent.java:237)
> at
> org.apache.solr.handler.component.SearchHandler.handleRequestBody(SearchHandler.java:194)
> at
> org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:129)
> at org.apache.solr.core.SolrCore.execute(SolrCore.java:1368)
> at
> org.apache.solr.client.solrj.embedded.EmbeddedSolrServer.request(EmbeddedSolrServer.java:140)
> ... 39 more
> {code}
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