Erik Hatcher commented on SOLR-11358:

Coming back to this, and double-checking the test cases and implementation, I 
question whether this is really useful, to have `payload()` return the same 
value that `termfreq()` would.   

At least let's add:

{{    <dynamicField name="*_dtf" type="delimited_term_frequency" indexed="true" 
stored="true" omitPositions="true"/>}}

{{ }}{{    <fieldType name="delimited_term_frequency" stored="false" 
indexed="true" class="solr.TextField">}}

{{      <analyzer>}}

{{        <tokenizer class="solr.WhitespaceTokenizerFactory"/>}}{{          }}

{{        <filter class="solr.DelimitedTermFrequencyTokenFilterFactory"/>}}{{   

{{    </fieldType>}}

to the default managed-schema.

I could see it being handy if you're testing the difference between *_dpi and 
*_dtf performance and potentially toggling back and forth and want it to be 
transparent, but these delimited tf fields aren't going to work as if they were 
truly payloaded with the payload scoring queries currently.



> Support DelimitedTermFrequencyTokenFilter-using fields with payload() function
> ------------------------------------------------------------------------------
>                 Key: SOLR-11358
>                 URL: https://issues.apache.org/jira/browse/SOLR-11358
>             Project: Solr
>          Issue Type: New Feature
>      Security Level: Public(Default Security Level. Issues are Public) 
>            Reporter: Erik Hatcher
>            Assignee: Erik Hatcher
>            Priority: Major
>         Attachments: SOLR-11358.patch
> payload() works values encoded with DelimitedPayloadTokenFilter.   payload() 
> can be modified to return the term frequency instead, when the field uses 
> DelimitedTermFrequencyTokenFilter.

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