refactor: unifed old retrieve API #573
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Mini256
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Jan 7, 2025
…ling_factor for retrieve api (#575) close #570 For `/admin/knowledge_bases/{kb_id}/graph/search` API, , add parameter: - `relationship_meta_filters`: pass the filtering conditions. For `/admin/retrieve/documents` API, add two parameters: - `similarity_top_k` to control how many nodes should the vector search return, if not set, using the value of `top_k` by default. - `oversampling_factor`: This is similar to the `ef_search` parameter of the HNSW index, the larger the parameter, the higher the recall rate. Since TiDB does not yet support modifying the value of `ef_search`, the current implementation uses subquery. The subquery returns the `similarity_top_k * oversampling_factor` rows, and the outer query finally returns the `similarity_top_k` rows. - At this time, if you need to turn on `metadata_filter`, you need to modify the Chat Engine configuration, this problem will be fixed after the retrieve API refactor (#573), thr new retrieve API will not dependant on the ChatEngine configuration.
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Unify
/admin/retrieve/documentsand/admin/embedding_retrieveAPI impl