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https://issues.apache.org/jira/browse/SOLR-14638?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17154419#comment-17154419
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Victor Zharikov commented on SOLR-14638:
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[~dsmiley] I'll try this. Thanks. So this is the expected behaviour for 7.7.2+
versions?
> Edismax boost function zero score
> ---------------------------------
>
> Key: SOLR-14638
> URL: https://issues.apache.org/jira/browse/SOLR-14638
> Project: Solr
> Issue Type: Bug
> Security Level: Public(Default Security Level. Issues are Public)
> 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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