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From "Otmar Caduff (JIRA)" <j...@apache.org>
Subject [jira] [Created] (LUCENE-7148) Support boolean subset matching
Date Tue, 29 Mar 2016 07:44:25 GMT
Otmar Caduff created LUCENE-7148:
------------------------------------

             Summary: Support boolean subset matching
                 Key: LUCENE-7148
                 URL: https://issues.apache.org/jira/browse/LUCENE-7148
             Project: Lucene - Core
          Issue Type: New Feature
          Components: core/search
    Affects Versions: 5.x
            Reporter: Otmar Caduff


In Lucene, I know of the possibility of Occur.SHOULD, Occur.MUST and the “minimum should
match” setting on the boolean query.

Now, when querying, I want to
- (1)  match the documents which either contain all the terms of the query (Occur.MUST for
all terms would do that) or,
- (2)  if all terms for a given field of a document are a subset of the query terms, that
document should match as well.

Example:
Document d hast field f with terms A, B, C
Query with the following terms should match that document:
A
B
A B
A B C
A B C D
Query with the following terms should not match:
D
A B D




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