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From Apache Wiki <wikidi...@apache.org>
Subject [Solr Wiki] Update of "DistributedSearch" by AndrewClegg
Date Tue, 06 Jul 2010 11:23:56 GMT
Dear Wiki user,

You have subscribed to a wiki page or wiki category on "Solr Wiki" for change notification.

The "DistributedSearch" page has been changed by AndrewClegg.
The comment on this change is: Clarified dupe handling policy.
http://wiki.apache.org/solr/DistributedSearch?action=diff&rev1=14&rev2=15

--------------------------------------------------

  = Distributed Searching Limitations =
  
     * Documents must have a unique key and the unique key must be stored (stored="true" in
schema.xml)
-    * When duplicate doc IDs are received, Solr chooses the first doc and discards subsequent
ones
+    * When docs with duplicate unique keys are encountered, Solr chooses the first doc and
discards subsequent ones
     * No distributed idf (see http://wunderwood.org/most_casual_observer/2007/04/progressive_reranking.html
) (Also see https://issues.apache.org/jira/browse/SOLR-1632 for some new work on this feature.)
     * Doesn't support !QueryElevationComponent
     * The index could change between stages, e.g. a document that matched a query and was
subsequently changed may no longer match but will still be retrieved.

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