[jira] [Updated] (SOLR-16162) FilterQuery (`filter([some_query])`) should implement DocSetProducer

["Kevin Risden (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SOLR-16162?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Kevin Risden updated SOLR-16162:
--------------------------------
    Status: Patch Available  (was: Open)

> FilterQuery (`filter([some_query])`) should implement DocSetProducer
> --------------------------------------------------------------------
>
>                 Key: SOLR-16162
>                 URL: https://issues.apache.org/jira/browse/SOLR-16162
>             Project: Solr
>          Issue Type: Improvement
>      Security Level: Public(Default Security Level. Issues are Public) 
>          Components: query parsers
>    Affects Versions: main (10.0)
>            Reporter: Michael Gibney
>            Assignee: Michael Gibney
>            Priority: Minor
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> There is a substantial practical reason for FilterQuery to implement DocSetProducer: the way FilterQuery works, it only consults the cache internally for the backing query; the cache is never directly consulted for the FilterQuery _per se_. As a consequence, when FilterQuery is used in a context that wants a DocSet, currently (without implementing DocSetProducer), a full clone of the cached DocSet must always be built via the Weight returned by FilterQuery.createWeight(). Implementing DocSetProducer allows to avoid superfluous DocSet creation.



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