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https://issues.apache.org/jira/browse/SOLR-14638?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17160892#comment-17160892
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David Smiley commented on SOLR-14638:
-------------------------------------
There might be a problem; I'm not sure. The fix in SOLR-13126 makes sense to
me though perhaps some other problem crept in. It'd help if you could write a
more specific bug report. For example given some sample data or even better
the "tech products" data in Solr, provide a query that demonstrates the issue.
> Edismax boost function zero score
> ---------------------------------
>
> Key: SOLR-14638
> URL: https://issues.apache.org/jira/browse/SOLR-14638
> Project: Solr
> Issue Type: Bug
> Affects Versions: 7.7.1, 7.7.2
> Environment: I am using the [https://hub.docker.com/_/solr] image for
> 7.7.1 and 7.7.2 versions without any major changes.
> Reporter: Victor Zharikov
> Priority: Critical
>
> I'm using edismax to boost a score.
> Using the 'field(field_name)' function's boost, I multiply the points by the
> value of this field.
> Its behavior without any patch notes became noticeably different between
> 7.7.1 and 7.7.2.
> On version 7.7.1, the record for which the 'field_name' field is not filled
> has regular score. And the record score with field_name = 2.0, for example,
> is multiplied by two.
> On version 7.7.2, a record with the field 'field_name' not filled in has ZERO
> score. And for the record with field_name = 2.0, the points are still
> multiplied by two from the normal result.
> It completely breaks the score ranking.
> Example .
> Version 7.7.1
> no field_name "score": 32.586094
> field_name = 2.0 "score": 65.17219
> no field_name "score": 0.0
> field_name = 2.0 "score": 65.17219
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