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https://issues.apache.org/jira/browse/SOLR-4280?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13578460#comment-13578460
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Markus Jelsma commented on SOLR-4280:
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Hi James,
I'm not sure that i follow. This patch only obtains the number of results for a
given. If the user has a single filter in the query lang:nl this patch looks up
the number of results for that filter only. The same is true for multiple
filters e.g. fq=lang:en&fq=host:apache.org, it just iterates over the these
filters in the cache and gets the number of documents they can return.
How would a user misuse this feature? This patch does not write to the
filterCache, users do so by adding fq-parameters.
Thanks
> spellcheck.maxResultsForSuggest based on filter query results
> -------------------------------------------------------------
>
> Key: SOLR-4280
> URL: https://issues.apache.org/jira/browse/SOLR-4280
> 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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