feat: 先暂时不改用混合检索

app/utils/milvus_utils.py

@@ -52,10 +52,12 @@ class MilvusService:
         dim=env.llama_index_dimension,
 
         embedding_field="embedding",
+        # text_field="text",  # 添加文本字段支持混合检索
         id_field="id",
         similarity_metric="COSINE",
         consistency_level="Strong",
         overwrite=False,
+        # enable_hybrid=True,  # 启用混合检索
       )
     return self._milvus_vector_store
 
@@ -92,7 +94,11 @@ class MilvusService:
 
     filters = MetadataFilters(filters=[MetadataFilter(key="parent_code", value=param.kb_code, operator=FilterOperator.IN if isinstance(param.kb_code, list) else FilterOperator.EQ)])
 
-    retriever = vector_index.as_retriever(filters=filters, similarity_top_k=param.top_k)
+    retriever = vector_index.as_retriever(
+      retriever_mode="hybrid",  # 启用混合模式
+      filters=filters,
+      similarity_top_k=param.top_k
+    )
 
     result_nodes = await retriever.aretrieve(param.question)