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From Trejkaz <>
Subject Reading a v2 index in v4
Date Mon, 09 Jun 2014 10:51:50 GMT
Hi all.

The inability to read people's existing indexes is essentially the
only thing stopping us upgrading to v4, so we're stuck indefinitely on
v3.6 until we find a way around this issue.

As I understand it, Lucene 4 added the notion of codecs which can
precisely choose how to read and write the index content.

So I wonder:
1. Is it technically possible to write a codec to read the v2 format?
2. If this is possible, has anyone already done it?
    (Surely we're not the first ones to want to do it.)


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