Alexander S. created SOLR-5332:
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Summary: Add "preserve original" setting to the
EdgeNGramFilterFactory
Key: SOLR-5332
URL: https://issues.apache.org/jira/browse/SOLR-5332
Project: Solr
Issue Type: Wish
Reporter: Alexander S.
Hi, as described here:
http://lucene.472066.n3.nabble.com/Help-to-figure-out-why-query-does-not-match-td4086967.html
the problem is in that if you have these 2 strings to index:
1. facebook.com/someuser.1
2. facebook.com/someveryandverylongusername
and the edge ngram filter factory with min and max gram size settings 2 and 25,
search requests for these urls will fail.
But search requests for:
1. facebook.com/someuser
2. facebook.com/someveryandverylonguserna
will work properly.
It's because first url has "1" at the end, which is lover that the allowed min
gram size. In the second url the user name is longer than the max gram size (27
characters).
Would be good to have a "preserve original" option, that will add the original
string to the index if it does not fit the allowed gram size, so that "1" and
"someveryandverylongusername" tokens will also be added to the index.
Best,
Alex
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