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From Lou Foster <...@performantsoftware.com>
Subject Fuzzy 2 search results wrong
Date Wed, 22 Jan 2014 21:18:23 GMT
I am using the fuzzy search functionality with solr 4.1 and am having
problems with the fuzzy search results when fuzzy level 2 is used.

Here is a description of the issue;

I have an index that consists of one main core that is generated by merging
many other cores together.

If I fuzzy search within the cores prior to merging, the results are as
expected. Exact match yields a number of hits, fuzzy 1 yields more and
fuzzy 2 even more. At each search I have verified that the words are being
matched using the correct edit distances.

The problem occurs after merging, and not with all cores. Sometimes the
results get capped out at the number of results returned by the fuzzy 1
search.

For example, exact returns 100 hits, and fuzzy 1 and fuzzy 2 both return
1200. I can see that the words matched are still the correct edit distance,
so I would expect the fuzzy 2 to have many more hits.

Why is this happening, and what can I do to troubleshoot and/or solve this
problem? It almost feels like a bug in solr.

Thanks!

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