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LUCENE-1461: fix single term per document -> single term for a given field 

git-svn-id: https://svn.apache.org/repos/asf/lucene/java/trunk@723375 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Michael McCandless 2008-12-04 17:13:40 +00:00
parent 240897988d
commit a660f21b99
1 changed files with 6 additions and 6 deletions
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12
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@ -98,12 +98,12 @@ New features
7. LUCENE-1461: Added FieldCacheRangeFilter, a RangeFilter for
single-term fields that uses FieldCache to compute the filter. If
your field has a single term per document, and you need to create
many RangeFilters with varying lower/upper bounds, then this is
likely a much faster way to create the filters than RangeFilter.
However, it comes at the expense of added RAM consumption and
slower first-time usage due to populating the FieldCache. (Tim
Sturge via Mike McCandless)
your documents all have a single term for a given field, and you
need to create many RangeFilters with varying lower/upper bounds,
then this is likely a much faster way to create the filters than
RangeFilter. However, it comes at the expense of added RAM
consumption and slower first-time usage due to populating the
FieldCache. (Tim Sturge via Mike McCandless)
8. LUCENE-1296: add protected method CachingWrapperFilter.docIdSetToCache
to allow subclasses to choose which DocIdSet implementation to use