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From "Nitin Shiralkar (JIRA)" <j...@apache.org>
Subject [jira] Created: (LUCENENET-109) Severe search performance drop in case of sorting on ID fields
Date Wed, 06 Feb 2008 07:21:08 GMT
Severe search performance drop in case of sorting on ID fields 
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                 Key: LUCENENET-109
                 URL: https://issues.apache.org/jira/browse/LUCENENET-109
             Project: Lucene.Net
          Issue Type: Bug
            Reporter: Nitin Shiralkar


Severe search performance drop in case of sorting on ID fields. I am using a lucene index
where if I query for documents (500 result set) with sorting on document date field, then
I get a resposne in ~2000 ms. However for the same query with sorting on Document Id field,
then I get a response in ~4500 ms. This drop in search performance is even more severe on
larger index.

Lucene Index:
1. Document count: ~1000,000
2. Index size: > 8 GB

Search Query:
document_subtype:1.1201

Lucene Search API:
topDocs  = indexSearcher.Search (userQuery,  null, m_nMaximumRecordSetSize, sortField );


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