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https://issues.apache.org/jira/browse/LUCENE-5954?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14572876#comment-14572876
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Robert Muir commented on LUCENE-5954:
-------------------------------------
{code}
if (format >= VERSION_53) {
// TODO: in the future (7.0? sigh) we can use this to throw
IndexFormatTooOldException ... or just rely on the
// minSegmentLuceneVersion check instead:
infos.luceneVersion = Version.fromBits(input.readVInt(), input.readVInt(),
input.readVInt());
} else {
// else leave null
}
{code}
I guess I was hoping we could take it further. We dont technically need to
change file formats to implement this, it could be computed from the segments
on read in the 4.0-5.2 case? Its just the min() that it finds there. Or does
this become too hairy?
> Store lucene version in segment_N
> ---------------------------------
>
> Key: LUCENE-5954
> URL: https://issues.apache.org/jira/browse/LUCENE-5954
> Project: Lucene - Core
> Issue Type: Bug
> Reporter: Ryan Ernst
> Assignee: Michael McCandless
> Attachments: LUCENE-5954.patch
>
>
> It would be nice to have the version of lucene that wrote segments_N, so that
> we can use this to determine which major version an index was written with
> (for upgrading across major versions). I think this could be squeezed in
> just after the segments_N header.
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