### Description ### Description As dense_vector support is being addressed in https://github.com/elastic/elasticsearch/issues/125783, ES|QL will be able to perform exact (brute force) vector search. The following tasks will be needed: - Vector similarity functions - [x] V_COSINE – calculates cosine similarity - https://github.com/elastic/elasticsearch/pull/130641 - [x] #131622 - [x] #131688 - [x] #132056 - [x] #132024 - Magnitude functions - [x] #132768 - [x] Improve performance - [x] Push down similarity functions to Block Loaders: https://github.com/elastic/elasticsearch/pull/137002 - [x] https://github.com/elastic/elasticsearch/issues/137392 - [x] Make vector similarity functions available for release builds - https://github.com/elastic/elasticsearch/pull/139365 - [x] Add docs for describing exact search in ES|QL using vector similarity functions. Complete [vector search section](https://www.elastic.co/docs/reference/query-languages/esql/esql-search-tutorial#vector-search-with-knn-and-text_embedding) with this. https://github.com/elastic/elasticsearch/pull/140552 Figure out the timing for GA - does it coincide with the time we make dense_vector/knn GA for ES|QL?
Description
Description
As dense_vector support is being addressed in #125783, ES|QL will be able to perform exact (brute force) vector search.
The following tasks will be needed:
Vector similarity functions
Magnitude functions
Improve performance
Make vector similarity functions available for release builds - ES|QL - Add vector similarity functions to tech preview, allow pushdown of blockloader functions #139365
Add docs for describing exact search in ES|QL using vector similarity functions. Complete vector search section with this. [Docs] ES|QL - Add exact search tutorial #140552
Figure out the timing for GA - does it coincide with the time we make dense_vector/knn GA for ES|QL?