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https://issues.apache.org/jira/browse/LUCENE-4580?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13509527#comment-13509527
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Gilad Barkai commented on LUCENE-4580:
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Patch looks good.
Two comments:
* In {{SimpleSearcher}} the code is change as such the {{DrillDown.query()}}
always takes a {{new FacetSearchParams()}} (no default) - but that's not
obvious it is the same one used for the search, or that it contains the
{{FacetIndexingParams}} used for indexing. The defaults made sure that if none
was specified along the way - the user should not bother himself with it. It is
a small piece of code, but in an example might confuse the reader. I'm somewhat
leaning toward allowing a default query() call without specifying a FSP.
* In the tests, perhaps use Float.MIN_VALUE or 0f when asserting equality of
floats instead against 0.00000.
> Facet DrillDown should return a ConstantScoreQuery
> --------------------------------------------------
>
> Key: LUCENE-4580
> URL: https://issues.apache.org/jira/browse/LUCENE-4580
> Project: Lucene - Core
> Issue Type: Improvement
> Components: modules/facet
> Reporter: Shai Erera
> Priority: Minor
> Attachments: LUCENE-4580.patch
>
>
> DrillDown is a helper class which the user can use to convert a facet value
> that a user selected into a Query for performing drill-down or narrowing the
> results. The API has several static methods that create e.g. a Term or Query.
> Rather than creating a Query, it would make more sense to create a Filter I
> think. In most cases, the clicked facets should not affect the scoring of
> documents. Anyway, even if it turns out that it must return a Query (which I
> doubt), we should at least modify the impl to return a ConstantScoreQuery.
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