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From "Yonik Seeley (JIRA)" <j...@apache.org>
Subject [jira] Commented: (SOLR-2386) Filter Query Cache Improvement
Date Sun, 27 Feb 2011 16:49:39 GMT

    [ https://issues.apache.org/jira/browse/SOLR-2386?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12999993#comment-12999993
] 

Yonik Seeley commented on SOLR-2386:
------------------------------------

bq. Not sure where this would fit best. Lucene/BooleanQuery looks like a natural place to
do this sort, but might be more a solr optimization?

This type of optimization has been rejected for Lucene in the past.
I'm not sure the benefit outweighs the cost to try and do it for all boolean queries for Solr
either, although perhaps a configurable option or a separate qparser might be OK.

Of course one could always sort in the client too.

> Filter Query Cache Improvement
> ------------------------------
>
>                 Key: SOLR-2386
>                 URL: https://issues.apache.org/jira/browse/SOLR-2386
>             Project: Solr
>          Issue Type: Improvement
>    Affects Versions: 3.2, 4.0
>            Reporter: Frederik Kraus
>            Priority: Minor
>
> Currently logically identical filter queries are not reduced to one query, but processed
and cached individually.
> In terms of cache "keys" the following two, logically identical queries, each have a
different key:
> fq=id:12345 OR id:54321
> vs
> fq=id:54321 OR id:12345
> Internally both queries should be stored and requested by/from the cache as fq=id:(12345
OR 54321) i.e. the clauses in BooleanQuery should be sorted.
> Not sure where this would fit best. Lucene/BooleanQuery looks like a natural place to
do this sort, but might be more a solr optimization?

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