[jira] [Updated] (SOLR-7981) term based ValueSourceParsers should support an option to run an analyzer for hte specified field on the input

["Jason Gerlowski (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SOLR-7981?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jason Gerlowski updated SOLR-7981:
----------------------------------
    Attachment: SOLR-7981.patch

A unit test exhibiting a discrepancy found in the bug description.

> term based ValueSourceParsers should support an option to run an analyzer for hte specified field on the input
> --------------------------------------------------------------------------------------------------------------
>
>                 Key: SOLR-7981
>                 URL: https://issues.apache.org/jira/browse/SOLR-7981
>             Project: Solr
>          Issue Type: Improvement
>            Reporter: Hoss Man
>              Labels: newdev
>         Attachments: SOLR-7981.patch
>
>
> The following functions all take exactly 2 arguments: a field name, and a term value...
> * idf
> * termfreq
> * tf
> * totaltermfreq
> ...we should consider adding an optional third argument to indicate if an analyzer for the specified field should be used on the input to find the real "Term" to consider.
> For example, the following might all result in equivilent numeric values for all docs assuming simple plural stemming and lowercasing...
> {noformat}
> termfreq(foo_t,'Bicycles',query) // use the query analyzer for field foo_t on input Bicycles
> termfreq(foo_t,'Bicycles',index) // use the index analyzer for field foo_t on input Bicycles
> termfreq(foo_t,'bicycle',none) // no analyzer used to construct Term
> termfreq(foo_t,'bicycle') // legacy 2 arg syntax, same as 'none'
> {noformat}
> (Special error checking needed if analyzer creates more then one term for the given input string)



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