Sorting by distance 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
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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