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https://issues.apache.org/jira/browse/JENA-1250?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15899238#comment-15899238
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ASF GitHub Bot commented on JENA-1250:
--------------------------------------
Github user osma commented on the issue:
https://github.com/apache/jena/pull/219
I've tested this briefly.
* Unit tests pass for both jena-text and jena-spatial
* I can create a text index and query it normally
* I can create a spatial index and query it normally
* jena.textindexer seems to work
* jena.textindexdump seems to work
* jena.spatialindexer seems to work
* jena.spatialindexdump seems to work
If I try to use a text index created before the Lucene upgrade, I get this
exception:
```
org.apache.lucene.index.IndexFormatTooOldException: Format version is not
supported (resource
BufferedChecksumIndexInput(MMapIndexInput(path="/tmp/lucene/segments_2"))): 3
(needs to be between 4 and 6). This version of Lucene only supports indexes
created with release 5.0 and later.
```
This is expected since Lucene 6 is incompatible with old Lucene 4 indexes,
see JENA-1250 for details.
Unless anyone objects I will merge this within the next 2 days.
> Upgrade text search to latest Lucene
> ------------------------------------
>
> Key: JENA-1250
> URL: https://issues.apache.org/jira/browse/JENA-1250
> Project: Apache Jena
> Issue Type: Improvement
> Components: Spatial, Text
> Reporter: Jean-Marc Vanel
>
> We are currently at Lucene 4.9.1 ,
> which is quite outdated compared to latest Lucene, which is 6.2.1 .
> Note that there is project to add a simple completion feature in addition to
> existing simple search.
> But it would be better to do that on an updated Lucene dependency .
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