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From "Alan Woodward (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (SOLR-9176) Legacy Faceting Term Enum Method Regression
Date Wed, 01 Jun 2016 19:17:59 GMT

     [ https://issues.apache.org/jira/browse/SOLR-9176?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Alan Woodward reassigned SOLR-9176:
-----------------------------------

    Assignee: Alan Woodward

> Legacy Faceting Term Enum Method Regression
> -------------------------------------------
>
>                 Key: SOLR-9176
>                 URL: https://issues.apache.org/jira/browse/SOLR-9176
>             Project: Solr
>          Issue Type: Bug
>          Components: faceting
>    Affects Versions: 5.2, 5.2.1, 5.3, 5.3.1, 5.3.2, 5.4, 5.4.1, 5.5, 5.5.1, 6.0, 6.0.1
>            Reporter: Alessandro Benedetti
>            Assignee: Alan Woodward
>         Attachments: SOLR-9176.patch
>
>
> Starting from this commit :
> LUCENE-5666: get solr started
> git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/lucene5666@1594254 13f79535-47bb-0310-9956-ffa450edef68
> https://github.com/apache/lucene-solr/commit/1489085807cb10981a7ea5b5663ada4e3f85953e#diff-5ac9dc7b128b4dd99b764060759222b2
> It is not possible to use Term Enum as a faceting method, for numeric and single valued
fields ( org.apache.solr.request.SimpleFacets ) .
> We personally verified that there are use cases when this is bringing a quite big performance
regression  ( even with DocValues enabled) .
> In the mailing list from time to time people complain about a regression happening with
the term enum method, but actually it is more likely to be the   automatic forcing of FCS.
> Forcing FCS in co-op with the famous regression that happened in SOLR-8096 could be confused
as a term Enum regression.



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