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Description
Description
As dense_vector support is being addressed in #125783, ES|QL will be able to perform nearest neighbours search.
The following tasks will be needed:
- kNN search function using vectors: ES|QL - kNN function initial support #127322
- ESQL - Add K mandatory param for KNN function #129763
- kNN uses LIMIT for setting k
- Prefiltering in kNN search
- kNN text search, using Inference
- kNN for semantic_text fields
- Exact NN search, doing brute force search