Gabriel39 opened a new issue, #66493:
URL: https://github.com/apache/doris/issues/66493

   ## Parent
   
   Tracked by #66340. ANN and Flat vector search were introduced by #65730.
   
   ## Scope
   
   - [ ] Add Radius/Range Search with lower and upper distance bounds.
   - [ ] Add standalone full-text search with BM25.
   - [ ] Define result schemas, filtering order, scoring semantics, limits, and 
EXPLAIN output.
   - [ ] Keep Hybrid Search out of scope unless it is designed separately.
   
   ## Completion criteria
   
   - [ ] FE analysis and BE/lance-c execution paths are implemented.
   - [ ] Unit and regression tests cover bounds, BM25 scoring, filters, and 
invalid parameters.
   - [ ] User documentation describes syntax, score or distance semantics, and 
limitations.
   - [ ] Representative indexed and non-indexed datasets are verified.


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