Unverified50% confidenceFactExact time
NEAREST BY Join expresses nearest-neighbor search as a Join operation at the SQL level, finding the K closest records in the right table for each row of the left table.
1
Sources
50%
Confidence
Long-term
Relevance
10/5/2026
First Seen
Sources
Related Entities
Related Claims
UnverifiedTop-K检索是从向量数据库中取相似度最高的前K个片段作为候选内容65% similarUnverifiedThe SQL2S mode requires performing a SQL query first and then conducting a web search with the results, the S2SQL mode is the reverse, and the Parallel mode retrieves evidence in parallel and then performs cross-validation.60% similarUnverifiedThe database field has long separated query planning from query execution, allowing the planner to complete optimal path calculation offline before execution.60% similarUnverified多表关联（Multi-table Join）在本质上类似SQL中的JOIN操作，企业数据分散在CRM、ERP、财务等多个系统，各系统字段命名规范不一，需要先做字段映射才能对齐60% similarUnverifiedpgvector supports both exact KNN (exact nearest neighbor) and ANN (approximate nearest neighbor) search, and integrates seamlessly with standard SQL.60% similar
Cite This Claim
Stable URI
https://kongchang.com/claim/978419API
curl https://kongchang.com/api/v1/knowledge/claims/978419MCP
get_claim(id=978419)