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SOLR-221 compare minimum count currently needed to the term df and avoid unnecessary intersection count, allow minimum term df in order to use the filterCache, otherwise iterate over TermDocs 

git-svn-id: https://svn.apache.org/repos/asf/lucene/solr/trunk@539551 13f79535-47bb-0310-9956-ffa450edef68
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Yonik Seeley 2007-05-18 18:37:52 +00:00
parent 849e40a560
commit ec60053d44
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@ -245,6 +245,14 @@ Optimizations
modifying the original query. modifying the original query.
(hossman) (hossman)
3. SOLR-221: Speed up sorted faceting on multivalued fields by ~60%
when the base set consists of a relatively large portion of the
index. (yonik)
4. SOLR-221: Added a facet.enum.cache.minDf parameter which avoids
using the filterCache for terms that match few documents, trading
decreased memory usage for increased query time. (yonik)
Bug Fixes Bug Fixes
1. SOLR-87: Parsing of synonym files did not correctly handle escaped 1. SOLR-87: Parsing of synonym files did not correctly handle escaped
whitespace such as \r\n\t\b\f. (yonik) whitespace such as \r\n\t\b\f. (yonik)