Following up on this topic… From: Edalat, Neda <neda.eda...@sap.com> Date: Tuesday, April 1, 2025 at 10:28 AM To: dev@solr.apache.org <dev@solr.apache.org> Subject: Important question regarding Solr capability of Hybrid Search Hi Team,
I’m a Data Scientist at SAP Ariba, and we’ve been using Solr for our product search. Recently, we’ve planned to start utilizing hybrid search capabilities and have been experimenting with different hybrid approaches. I have a question regarding this. We need to find a hybrid query payload that retrieves results from both lexical and semantic (vector similarity) searches in a single query—without any re-ranking. For example, we want to return 10 rows from the semantic search and 10 rows from the lexical search (a total of 20) without any re-ranking. We’ve attempted this using the Union approach (“Boolean Should logic”), but it retrieves both lexical and semantic results, sorts them based on score, and returns only the top-ranked ones. This approach does not achieve the exact outcome we need. Could you please provide guidance based on your experience? This issue is a major blocker for our product at the moment. Looking forward to your insights. Regards, Neda Edalat