Github user amiara514 commented on the pull request:
https://github.com/apache/jena/pull/64#issuecomment-103661706
1. Not exactly, let's suppose that langField is used with name "language".
If lang arg == "none" in the Sparql query, then the query extension for
Lucene will be :
```
String qs2 = "-language:*"
```
with a minus before to exclude filled values
2. Ok I will submit it to the dev list.
Is there a required formatting on on the message ?
ps: I will also mention the refactoring to obtain their advices on it.
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