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https://issues.apache.org/jira/browse/JENA-1388?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16248507#comment-16248507
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A. Soroka commented on JENA-1388:
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I had no intention of pushing the architectural work onto a student-- that's
our job. The idea would be to have a good design already in hand before
advertising the project idea. The project would be to implement the design.
Certainly there would be unexpected twists and turns, but to me that just
implies a need for an older student. E.g. I've had great luck with master's
students for this kind of work on other projects.
> Lucene text search across multiple fields ("AND") yields no results
> -------------------------------------------------------------------
>
> Key: JENA-1388
> URL: https://issues.apache.org/jira/browse/JENA-1388
> Project: Apache Jena
> Issue Type: Bug
> Components: Text
> Affects Versions: Jena 3.4.0
> Environment: CentOS 7.3, OpenJDK 64-Bit, v1.8.0_141-b16
> Reporter: Vilnis Termanis (Iotic Labs)
> Assignee: Osma Suominen
> Labels: index, lucene, search
> Attachments: config-fields.ttl, multi_field.ttl, multi_index.sparql
>
>
> Searching across two Lucene text indexed fields produces potentially
> unexpected results. (The following assumes that the string supplied to each
> field does match and is tied to the same uid/subject.)
> # A query across two fields with *OR* produces two equal rows
> # The same query but with *AND* produces no rows
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