[jira] [Updated] (SOLR-17335) New `vecSim` QParser for Lucene's (Float|Byte)VectorSimilarityQuery classes

["Chris M. Hostetter (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SOLR-17335?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Chris M. Hostetter updated SOLR-17335:
--------------------------------------
    Attachment: SOLR-17335.patch
        Status: Open  (was: Open)

The attached patch refactors some logic out of the existing KnnQParser and into a new AbstractVectorQParserBase class:
 * the {{f}} param field parsing and type validation
 * the input vector parsing
 * the "pre-filtering" configuration & defaults logic.

The new AbstractVectorQParserBase class is now also extended by a new VecSimQParser that returns instances of either FloatVectorSimilarityQuery or ByteVectorSimilarityQuery (depending on to the VectorEncoding of the field type)

Syntax of the new parser is...
{noformat}
{!vecSim f=my_vec_field minReturn=0.7 minTraverse=0.2}[1,2,3,4]
{noformat}
(where {{minTraverse}} is optional and defaults to {{{}-Infinity{}}})

Patch includes testcases and ref-guide updates.

I think it's pretty solid?

/ping [~eliaporciani], [~abenedetti]

> New `vecSim` QParser for Lucene's (Float|Byte)VectorSimilarityQuery classes
> ---------------------------------------------------------------------------
>
>                 Key: SOLR-17335
>                 URL: https://issues.apache.org/jira/browse/SOLR-17335
>             Project: Solr
>          Issue Type: Improvement
>      Security Level: Public(Default Security Level. Issues are Public) 
>            Reporter: Chris M. Hostetter
>            Assignee: Chris M. Hostetter
>            Priority: Major
>         Attachments: SOLR-17335.patch
>
>
> Lucene (9.10 i believe?) has added  (Float|Byte)VectorSimilarityQuery classes as alternatives to KnnVectorQuery -- instead of being configured with a 'topK' they are configured with minimum similarity threshold(s) for returning results (and limiting the traversal of the graph)
> This ticket tracks adding a Solr QParser for these queries.



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