In this situation you need to first, using 4.5.1, "upgrade" your
entire index to the supported postings format ... then 4.8 can read
the index.
Mike McCandless
http://blog.mikemccandless.com
On Thu, Sep 25, 2014 at 4:00 PM, Michael Poindexter
wrote:
> I have an index that was created in 4.5.1
I have an index that was created in 4.5.1 using a custom Codec (actually
just the Lucene45Codec codec with the getPostingsFormatForField method
overridden to return a MemoryPostingsFormat for a particular field). I
attempted to upgrade using IndexUpgrader to a 4.8.1 index, and it failed
with a Cor
