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From "Anshum Gupta (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-7143) MoreLikeThis Query Parser does not handle multiple field names
Date Wed, 15 Apr 2015 17:54:59 GMT

    [ https://issues.apache.org/jira/browse/SOLR-7143?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14496596#comment-14496596
] 

Anshum Gupta commented on SOLR-7143:
------------------------------------

I'll try and wrap it up this week and will also link this to SOLR-2798.

> MoreLikeThis Query Parser does not handle multiple field names
> --------------------------------------------------------------
>
>                 Key: SOLR-7143
>                 URL: https://issues.apache.org/jira/browse/SOLR-7143
>             Project: Solr
>          Issue Type: Bug
>          Components: query parsers
>    Affects Versions: 5.0
>            Reporter: Jens Wille
>            Assignee: Anshum Gupta
>         Attachments: SOLR-7143.patch, SOLR-7143.patch
>
>
> The newly introduced MoreLikeThis Query Parser (SOLR-6248) does not return any results
when supplied with multiple fields in the {{qf}} parameter.
> To reproduce within the techproducts example, compare:
> {code}
> curl 'http://localhost:8983/solr/techproducts/select?q=%7B!mlt+qf=name%7DMA147LL/A'
> curl 'http://localhost:8983/solr/techproducts/select?q=%7B!mlt+qf=features%7DMA147LL/A'
> curl 'http://localhost:8983/solr/techproducts/select?q=%7B!mlt+qf=name,features%7DMA147LL/A'
> {code}
> The first two queries return 8 and 5 results, respectively. The third query doesn't return
any results (not even the matched document).
> In contrast, the MoreLikeThis Handler works as expected (accounting for the default {{mintf}}
and {{mindf}} values in SimpleMLTQParser):
> {code}
> curl 'http://localhost:8983/solr/techproducts/mlt?q=id:MA147LL/A&mlt.fl=name&mlt.mintf=1&mlt.mindf=1'
> curl 'http://localhost:8983/solr/techproducts/mlt?q=id:MA147LL/A&mlt.fl=features&mlt.mintf=1&mlt.mindf=1'
> curl 'http://localhost:8983/solr/techproducts/mlt?q=id:MA147LL/A&mlt.fl=name,features&mlt.mintf=1&mlt.mindf=1'
> {code}
> After adding the following line to {{example/techproducts/solr/techproducts/conf/solrconfig.xml}}:
> {code:language=XML}
> <requestHandler name="/mlt" class="solr.MoreLikeThisHandler" />
> {code}
> The first two queries return 7 and 4 results, respectively (excluding the matched document).
The third query returns 7 results, as one would expect.



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