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From "Markus Jelsma (JIRA)" <>
Subject [jira] [Updated] (SOLR-4280) spellcheck.maxResultsForSuggest based on filter query results
Date Thu, 14 Feb 2013 13:36:12 GMT


Markus Jelsma updated SOLR-4280:

    Attachment: SOLR-4280-trunk-1.patch

Patch for trunk introducing a spellcheck.percentageResultsForSuggest. It uses the filterCache
to check the maximum number of possible results so whether a term is misspelled relies on
how large the maximum result set is and the value for this parameter. 

Since the filterCache cannot be retrieved from SolrIndexSearcher.getCache() at this moment
you'll have to hack into it and have it add the filterCache to the cacheMap somewhere in the

cacheMap.put(, filterCache);
> spellcheck.maxResultsForSuggest based on filter query results
> -------------------------------------------------------------
>                 Key: SOLR-4280
>                 URL:
>             Project: Solr
>          Issue Type: Improvement
>          Components: spellchecker
>            Reporter: Markus Jelsma
>             Fix For: 4.2, 5.0
>         Attachments: SOLR-4280-trunk-1.patch
> spellcheck.maxResultsForSuggest takes a fixed number but ideally should be able to take
a ratio and calculate that against the maximum number of results the filter queries return.
> At least in our case this would certainly add a lot of value. >99% of our end-users
search within one or more filters of which one is always unique. The number of documents for
each of those unique filters varies significantly ranging from 300 to 3.000.000 documents
in which they search. The maxResultsForSuggest is set to a reasonable low value so it kind
of works fine but sometimes leads to undesired suggestions for a large subcorpus that has
more misspellings.
> Spun off from SOLR-4278.

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