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https://issues.apache.org/jira/browse/SOLR-1632?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13194921#comment-13194921
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Robert Muir commented on SOLR-1632:
-----------------------------------
{quote}
There is no provision for this yet in the current patch.
{quote}
There is nothing different from a MTQ generated BQ than a huge BQ a solr user
submits.
In my opinion instead of saying "screw scoring certain types of queries", this
stuff should
be done by InExact implementations (and maybe that should be the default,
fine). e.g. a nice
heuristic could look at the local stats and say: sure there are 100 terms but
50 are low-freq,
lets assume additive constant C for those, batch the other terms into e.g. 5
ranges and only request
stats on 5 "surrogate" terms representative of those groups.
Just make sure any heuristic is always *added* to what is surely present
locally, e.g. distributed
docfreq is always >= local docfreq. Then no scoring algorithms will break.
> Distributed IDF
> ---------------
>
> Key: SOLR-1632
> URL: https://issues.apache.org/jira/browse/SOLR-1632
> Project: Solr
> Issue Type: New Feature
> Components: search
> Affects Versions: 1.5
> Reporter: Andrzej Bialecki
> Attachments: 3x_SOLR-1632_doesntwork.patch, SOLR-1632.patch,
> SOLR-1632.patch, SOLR-1632.patch, distrib-2.patch, distrib.patch
>
>
> Distributed IDF is a valuable enhancement for distributed search across
> non-uniform shards. This issue tracks the proposed implementation of an API
> to support this functionality in Solr.
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