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https://issues.apache.org/jira/browse/SOLR-2533?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chris Male updated SOLR-2533:
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Attachment: SOLR-2533.patch
Updated patch with the change to rewrite.
> Improve API of ValueSource & FunctionQuery SortField weighting
> --------------------------------------------------------------
>
> Key: SOLR-2533
> URL: https://issues.apache.org/jira/browse/SOLR-2533
> Project: Solr
> Issue Type: Improvement
> Components: search
> Reporter: Chris Male
> Attachments: SOLR-2533.patch, SOLR-2533.patch
>
>
> Started from LUCENE-2883: Support for sorting by ValueSource and
> FunctionQueries is done through ValueSource#getSort and the
> ValueSourceSortField. In order to support VSs containing other Queries, its
> necessary to allow the Querys to be weighted by an IndexSearcher. Currently
> this is handled by having ValueSourceSortField implement SolrSortField. In
> Solr's SolrIndexSearcher, SortFields implementing SolrSortField are then
> weighted before the Sort is used.
> Sorting by FunctionQuery and ValueSource are invaluable and will become
> available to all Lucene users in LUCENE-2883. But in order to do so, we need
> to remove the coupling of this functionality to Solr, and make it more
> standard.
> Any and all thoughts about how to do this are appreciated.
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