[jira] [Resolved] (SOLR-16120) optimise glob-free hl.fl expansion

["Christine Poerschke (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SOLR-16120?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Christine Poerschke resolved SOLR-16120.
----------------------------------------
    Fix Version/s: 9.1
                   main (10.0)
       Resolution: Fixed

* glob-free hl.fl expansion was optimised by not unnecessarily determining the fields available for highlighting;
 * with-glob hl.fl expansion was optimised by extracting a regex Pattern that can be re-used when matching the fields available for highlighting;

> optimise glob-free hl.fl expansion
> ----------------------------------
>
>                 Key: SOLR-16120
>                 URL: https://issues.apache.org/jira/browse/SOLR-16120
>             Project: Solr
>          Issue Type: Task
>          Components: highlighter
>            Reporter: Christine Poerschke
>            Assignee: Christine Poerschke
>            Priority: Minor
>             Fix For: 9.1, main (10.0)
>
>          Time Spent: 1h 40m
>  Remaining Estimate: 0h
>
> Currently {{SolrDocumentFetcher.getStoredHighlightFieldNames()}} is always called but the result is actually only used if there's a {{\*}} present e.g. {{hl.fl=fieldA,fieldB*}} would use it but {{hl.fl=fieldA,fieldB}} or {{hl.fl=fieldA}} would not use it.
> If a field names supplier is used instead of the field names themselves the call can be deferred until needed and thus avoided if not needed.



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