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From "Ion Badita (JIRA)" <>
Subject [jira] Created: (LUCENE-958) MultiSearcher Filtering with more than one index is broken
Date Fri, 13 Jul 2007 05:02:04 GMT
MultiSearcher Filtering with more than one index is broken

                 Key: LUCENE-958
             Project: Lucene - Java
          Issue Type: Bug
          Components: Search
    Affects Versions: 2.2
            Reporter: Ion Badita

Using filtering on MultiSarcher with more than one index is not working right.

Probable the best way to describe the problem is to give a small example:
Suppose we have 2 Indexes with two documents each:

Index1 {Doc(id:"A", content:".."), Doc(id:"B", content:"..")}
Index2 {Doc(id:"C", content:".."), Doc(id:"D", content:"..")}

When executing a query that returns all the documents and applying a QueryFilter that generated
the following BitSet (1, 0, 0, 0), it should filter all the documents but first; the real
results are: Doc(id:"A") and Doc(id:"B"), this because the MultiSearcher applies the BitSet
filter from the bitset's position 0 for each Index.

The right way is to split the bitset in peaces: Index1 to get the bites form 0-1 and Index2
bites from 2-3.

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