[
https://issues.apache.org/jira/browse/LUCENE-666?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Uwe Schindler updated LUCENE-666:
---------------------------------
Comment: was deleted
(was: This is not a problem of QueryParser, its more a problem of the
combination of SHOULD and MUST_NOT clauses in a single BooleanQuery. The first
clause must be required to have the wanted effect.
To prevent such a thing at all, I would tend to disallow MUST/SHOULD clauses in
a BooleanQuery. No need to add ParseExceptions to QueryParser as the same
problem would also happen to users constructing BooleanQuery programatically.)
> TERM1 OR NOT TERM2 does not perform as expected
> -----------------------------------------------
>
> Key: LUCENE-666
> URL: https://issues.apache.org/jira/browse/LUCENE-666
> Project: Lucene - Java
> Issue Type: Bug
> Components: QueryParser
> Affects Versions: 2.0.0
> Environment: Windows XP, JavaCC 4.0, JDK 1.5
> Reporter: Dejan Nenov
> Attachments: TestAornotB.java
>
>
> test:
> [junit] Testsuite: org.apache.lucene.search.TestAornotB
> [junit] Tests run: 3, Failures: 1, Errors: 0, Time elapsed: 0.39 sec
> [junit] ------------- Standard Output ---------------
> [junit] Doc1 = A B C
> [junit] Doc2 = A B C D
> [junit] Doc3 = A C D
> [junit] Doc4 = B C D
> [junit] Doc5 = C D
> [junit] -------------------------------------------------
> [junit] With query "A OR NOT B" we expect to hit
> [junit] all documents EXCEPT Doc4, instead we only match on Doc3.
> [junit] While LUCENE currently explicitly does not support queries of
> [junit] the type "find docs that do not contain TERM" - this explains
> [junit] not finding Doc5, but does not justify elimnating Doc1 and Doc2
> [junit] -------------------------------------------------
> [junit] the fix shoould likely require a modification to QueryParser.jj
> [junit] around the method:
> [junit] protected void addClause(Vector clauses, int conj, int mods,
> Query q)
> [junit] Query:c:a -c:b hits.length=1
> [junit] Query Found:Doc[0]= A C D
> [junit] 0.0 = (NON-MATCH) Failure to meet condition(s) of
> required/prohibited clause(s)
> [junit] 0.6115718 = (MATCH) fieldWeight(c:a in 1), product of:
> [junit] 1.0 = tf(termFreq(c:a)=1)
> [junit] 1.2231436 = idf(docFreq=3)
> [junit] 0.5 = fieldNorm(field=c, doc=1)
> [junit] 0.0 = match on prohibited clause (c:b)
> [junit] 0.6115718 = (MATCH) fieldWeight(c:b in 1), product of:
> [junit] 1.0 = tf(termFreq(c:b)=1)
> [junit] 1.2231436 = idf(docFreq=3)
> [junit] 0.5 = fieldNorm(field=c, doc=1)
> [junit] 0.6115718 = (MATCH) sum of:
> [junit] 0.6115718 = (MATCH) fieldWeight(c:a in 2), product of:
> [junit] 1.0 = tf(termFreq(c:a)=1)
> [junit] 1.2231436 = idf(docFreq=3)
> [junit] 0.5 = fieldNorm(field=c, doc=2)
> [junit] 0.0 = (NON-MATCH) Failure to meet condition(s) of
> required/prohibited clause(s)
> [junit] 0.0 = match on prohibited clause (c:b)
> [junit] 0.6115718 = (MATCH) fieldWeight(c:b in 3), product of:
> [junit] 1.0 = tf(termFreq(c:b)=1)
> [junit] 1.2231436 = idf(docFreq=3)
> [junit] 0.5 = fieldNorm(field=c, doc=3)
> [junit] Query:c:a (-c:b) hits.length=3
> [junit] Query Found:Doc[0]= A B C
> [junit] Query Found:Doc[1]= A B C D
> [junit] Query Found:Doc[2]= A C D
> [junit] 0.3057859 = (MATCH) product of:
> [junit] 0.6115718 = (MATCH) sum of:
> [junit] 0.6115718 = (MATCH) fieldWeight(c:a in 1), product of:
> [junit] 1.0 = tf(termFreq(c:a)=1)
> [junit] 1.2231436 = idf(docFreq=3)
> [junit] 0.5 = fieldNorm(field=c, doc=1)
> [junit] 0.5 = coord(1/2)
> [junit] 0.3057859 = (MATCH) product of:
> [junit] 0.6115718 = (MATCH) sum of:
> [junit] 0.6115718 = (MATCH) fieldWeight(c:a in 2), product of:
> [junit] 1.0 = tf(termFreq(c:a)=1)
> [junit] 1.2231436 = idf(docFreq=3)
> [junit] 0.5 = fieldNorm(field=c, doc=2)
> [junit] 0.5 = coord(1/2)
> [junit] 0.0 = (NON-MATCH) product of:
> [junit] 0.0 = (NON-MATCH) sum of:
> [junit] 0.0 = coord(0/2)
> [junit] ------------- ---------------- ---------------
> [junit] Testcase: testFAIL(org.apache.lucene.search.TestAornotB): FAILED
> [junit] resultDocs =A C D expected:<3> but was:<1>
> [junit] junit.framework.AssertionFailedError: resultDocs =A C D
> expected:<3> but was:<1>
> [junit] at
> org.apache.lucene.search.TestAornotB.testFAIL(TestAornotB.java:137)
> [junit] Test org.apache.lucene.search.TestAornotB FAILED
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org
For additional commands, e-mail: dev-h...@lucene.apache.org
