[FEATURE] Dense Vector Search

[dkd-dobberkau]

Is your feature request related to a problem? Please describe.

I would be excited if EXT:solr added support for dense vector search. This would help our ability to perform efficient and accurate similarity searches, which are crucial for recommendation systems and semantic search applications.

Describe the solution you'd like

I want EXT:solr to support dense vector search, including the ability to index dense vectors and perform k-nearest neighbors (knn) searches. This would enhance search capabilities by allowing for more nuanced and relevant results.

Describe alternatives you've considered

I have considered integrating external libraries with Solr, but this approach adds complexity and overhead to our system. Native support within EXT:solr would be more seamless and efficient.

Additional context

Adding native dense vector search support would align EXT:solr with modern search technologies and improve its utility for various applications. Here is a link to the Apache Solr guide on dense vector search for reference: Solr Dense Vector Search Guide.

Target versions

EXT:solr 13.x

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Feel free to adjust the specifics based on your needs.

[dkd-dobberkau]

See also:
Blog: https://sease.io/2022/01/apache-solr-neural-search.html
Blog: https://sease.io/2022/01/apache-solr-neural-search-knn-benchmark.html

https://solr.apache.org/guide/solr/latest/getting-started/tutorial-vectors.html