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Posted to issues@lucene.apache.org by "Jason Gerlowski (Jira)" <ji...@apache.org> on 2019/11/04 15:31:00 UTC

[jira] [Updated] (SOLR-13890) Add postfilter support to {!terms} queries

     [ https://issues.apache.org/jira/browse/SOLR-13890?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jason Gerlowski updated SOLR-13890:
-----------------------------------
    Attachment: SOLR-13890.patch
        Status: Open  (was: Open)

Attaching a patch with a first draft at how this would work.  Still needs general cleanup, documentation, and tests.  But the general approach there should be pretty clear for anyone interested in reviewing.

> Add postfilter support to {!terms} queries
> ------------------------------------------
>
>                 Key: SOLR-13890
>                 URL: https://issues.apache.org/jira/browse/SOLR-13890
>             Project: Solr
>          Issue Type: Improvement
>      Security Level: Public(Default Security Level. Issues are Public) 
>          Components: query parsers
>    Affects Versions: master (9.0)
>            Reporter: Jason Gerlowski
>            Priority: Major
>         Attachments: SOLR-13890.patch
>
>
> There are some use-cases where it'd be nice if the "terms" qparser created a query that could be run as a postfilter.  Particularly, when users are checking for hundreds or thousands of terms, a postfilter implementation can be more performant than the standard processing.
> WIth this issue, I'd like to propose a post-filter implementation for the {{docValuesTermsFilter}} "method".  Postfilter creation can use a SortedSetDocValues object to populate a DV bitset with the "terms" being checked for.  Each document run through the post-filter can look at their doc-values for the field in question and check them efficiently against the constructed bitset.



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