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https://issues.apache.org/jira/browse/LUCENE-1974?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12765332#action_12765332
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Yonik Seeley commented on LUCENE-1974:
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bq. It's also concerning that no unit test catches this...
I've said it before, I'll say it again... anything of sufficient complexity
really benefits from random tests to hit boundary cases that one would not have
thought to code for. We have quite a few in Solr, but not enough. We
obviously don't have enough in Lucene either.
One other simple tactic I've used in Solr to increase the chance of hitting
boundary conditions is to make sure many segments are created by default (bad
for performance, good for testing), and that cache sizes, window sizes, etc are
small so that they are crossed more often by more tests.
> BooleanQuery can not find all matches in special condition
> ----------------------------------------------------------
>
> Key: LUCENE-1974
> URL: https://issues.apache.org/jira/browse/LUCENE-1974
> Project: Lucene - Java
> Issue Type: Bug
> Components: Query/Scoring
> Affects Versions: 2.9
> Reporter: tangfulin
> Assignee: Michael McCandless
> Fix For: 2.9.1, 3.0
>
> Attachments: BooleanQueryTest.java, LUCENE-1974.test.patch,
> LUCENE-1974.test.patch
>
>
> query: (name:tang*)
> doc=5137 score=1.0 doc:Document<stored,indexed<name:tangfulin>>
> doc=11377 score=1.0 doc:Document<stored,indexed<name:tangfulin>>
> query: name:tang* name:notexistnames
> doc=5137 score=0.048133932 doc:Document<stored,indexed<name:tangfulin>>
> It is two queries on the same index, one is just a prefix query in a
> boolean query, and the other is a prefix query plus a term query in a
> boolean query, all with Occur.SHOULD .
> what I wonder is why the later query can not find the doc=11377 doc ?
> the problem can be repreduced by the code in the attachment .
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