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SOLR-1904: use HashDocSet.exists in facet.enum 

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@941029 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Yonik Seeley 2010-05-04 20:39:38 +00:00
parent 49631091d6
commit 26f4756511
2 changed files with 12 additions and 1 deletions
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3
solr/CHANGES.txt
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@ -167,6 +167,9 @@ Optimizations
the "threads" local param on the facet.field param. This algorithm will
only be faster in the presence of rapid index changes. (yonik)
* SOLR-1904: When facet.enum.cache.minDf > 0 and the base doc set is a
SortedIntSet, convert to HashDocSet for better performance. (yonik)
Bug Fixes
----------------------

10
solr/src/java/org/apache/solr/request/SimpleFacets.java
View File

@ -493,6 +493,14 @@ public class SimpleFacets {
// Minimum term docFreq in order to use the filterCache for that term.
int minDfFilterCache = params.getFieldInt(field, FacetParams.FACET_ENUM_CACHE_MINDF, 0);
// make sure we have a set that is fast for random access, if we will use it for that
DocSet fastForRandomSet = docs;
if (minDfFilterCache>0 && docs instanceof SortedIntDocSet) {
SortedIntDocSet sset = (SortedIntDocSet)docs;
fastForRandomSet = new HashDocSet(sset.getDocs(), 0, sset.size());
}
IndexSchema schema = searcher.getSchema();
IndexReader r = searcher.getReader();
FieldType ft = schema.getFieldType(field);
@ -576,7 +584,7 @@ public class SimpleFacets {
int[] docArr = bulk.docs.ints; // this might be movable outside the loop, but perhaps not worth the risk.
int end = bulk.docs.offset + nDocs;
for (int i=bulk.docs.offset; i<end; i++) {
if (docs.exists(docArr[i])) c++;
if (fastForRandomSet.exists(docArr[i])) c++;
}
}
}