On the 2nd question, we do not plan on leveraging this information to figure out the codec: the codec that should be used to read a segment is stored separately (also in segment infos).
It is mostly useful for diagnostics purposes. E.g. if we see an interesting corruption case where checksums match, we can guess that there is a bug somewhere in Lucene in a version that is between this minimum version and the version that was used to write the segment. On Sat, Sep 17, 2022 at 11:07 AM Dawid Weiss <dawid.we...@gmail.com> wrote: > > (so deleted docs == max docs) and call commit. Will/Can this segment > still > > exist after commit? > > > > Depends on your merge policy index deletion policy. You can configure > Lucene to keep older commits (and then you'll preserve all historical > segments). > > I don't know the answer to your second question. > > D. > -- Adrien
