[jira] [Created] (SOLR-14638) Edismax boost function zero score

["Victor Zharikov (Jira)" <ji...@apache.org>]

Victor Zharikov created SOLR-14638:
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             Summary: 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: 7.7.2, 7.7.1
         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


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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