Add hybrid (vector + keyword) search

[HIRANO-Satoshi]

Please add hybrid (vector + keyword) search.

cocoindex-code-mcp-server supports search-hybrid but the repo seems very inactive or dead.

[badmonster0]

thanks a lot @HIRANO-Satoshi for the suggestion! - yes, this is indeeded part of the plan ! we are actively improving this repo and will keep you posted on the updates!

[HIRANO-Satoshi]

Hi @badmonster0. Thanks much for a nice RAG server. I love it.

I noticed that cocoindex-code-mcp-server uses an AGPL license, while this project uses Apache. While the licenses prevent direct code porting, their approach to hybrid search is worth investigating.

Implementing a similar hybrid search (combining vector and keyword search) directly on a single PostgreSQL instance would be a powerful addition to this MCP server.