[jira] [Commented] (LUCENE-7703) Record the version that was used at index creation time
[ https://issues.apache.org/jira/browse/LUCENE-7703?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15888099#comment-15888099 ] ASF subversion and git services commented on LUCENE-7703: - Commit d9c0f2599d934766549b2566d7c0dd159c3af5c8 in lucene-solr's branch refs/heads/master from [~jpountz] [ https://git-wip-us.apache.org/repos/asf?p=lucene-solr.git;h=d9c0f25 ] LUCENE-7703: Record the index creation version. > Record the version that was used at index creation time > --- > > Key: LUCENE-7703 > URL: https://issues.apache.org/jira/browse/LUCENE-7703 > Project: Lucene - Core > Issue Type: Improvement >Reporter: Adrien Grand >Priority: Minor > Attachments: LUCENE-7703.patch > > > SegmentInfos already records the version that was used to write a commit and > the version that was used to write the oldest segment in the index. In > addition to those, I think it could be useful to record the Lucene version > that was used to create the index. I think it could help with: > - Debugging: there are things that change based on Lucene versions, for > instance we will reject broken offsets in term vectors as of 7.0. Knowing the > version that was used to create the index can be very useful to know what > assumptions we can make about an index. > - Backward compatibility. The codec API helped simplify backward > compatibility of the index files a lot. However for everything that is done > on top of the codec API like analysis or the computation of length norm > factors, backward compatibility needs to be handled on top of Lucene. Maybe > we could simplify this? -- This message was sent by Atlassian JIRA (v6.3.15#6346) - To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org For additional commands, e-mail: dev-h...@lucene.apache.org
[jira] [Commented] (LUCENE-7703) Record the version that was used at index creation time
[ https://issues.apache.org/jira/browse/LUCENE-7703?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15883579#comment-15883579 ] Michael McCandless commented on LUCENE-7703: +1 to the patch. > Record the version that was used at index creation time > --- > > Key: LUCENE-7703 > URL: https://issues.apache.org/jira/browse/LUCENE-7703 > Project: Lucene - Core > Issue Type: Improvement >Reporter: Adrien Grand >Priority: Minor > Attachments: LUCENE-7703.patch > > > SegmentInfos already records the version that was used to write a commit and > the version that was used to write the oldest segment in the index. In > addition to those, I think it could be useful to record the Lucene version > that was used to create the index. I think it could help with: > - Debugging: there are things that change based on Lucene versions, for > instance we will reject broken offsets in term vectors as of 7.0. Knowing the > version that was used to create the index can be very useful to know what > assumptions we can make about an index. > - Backward compatibility. The codec API helped simplify backward > compatibility of the index files a lot. However for everything that is done > on top of the codec API like analysis or the computation of length norm > factors, backward compatibility needs to be handled on top of Lucene. Maybe > we could simplify this? -- This message was sent by Atlassian JIRA (v6.3.15#6346) - To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org For additional commands, e-mail: dev-h...@lucene.apache.org
[jira] [Commented] (LUCENE-7703) Record the version that was used at index creation time
[ https://issues.apache.org/jira/browse/LUCENE-7703?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15878041#comment-15878041 ] Michael McCandless commented on LUCENE-7703: +1, I think this is important info for the index. > Record the version that was used at index creation time > --- > > Key: LUCENE-7703 > URL: https://issues.apache.org/jira/browse/LUCENE-7703 > Project: Lucene - Core > Issue Type: Improvement >Reporter: Adrien Grand >Priority: Minor > > SegmentInfos already records the version that was used to write a commit and > the version that was used to write the oldest segment in the index. In > addition to those, I think it could be useful to record the Lucene version > that was used to create the index. I think it could help with: > - Debugging: there are things that change based on Lucene versions, for > instance we will reject broken offsets in term vectors as of 7.0. Knowing the > version that was used to create the index can be very useful to know what > assumptions we can make about an index. > - Backward compatibility. The codec API helped simplify backward > compatibility of the index files a lot. However for everything that is done > on top of the codec API like analysis or the computation of length norm > factors, backward compatibility needs to be handled on top of Lucene. Maybe > we could simplify this? -- This message was sent by Atlassian JIRA (v6.3.15#6346) - To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org For additional commands, e-mail: dev-h...@lucene.apache.org
