Shuge Unlimited

Sep 29, 2026 · Databases

Milvus 3.0 Aggregation Inaccuracy: It's Missing Candidates, Not Safe Factor

The article explains that Milvus 3.0 search aggregation operates on ANN candidates, not full collections, so missing buckets stem from candidate budget limits (topK and TopHits.size), not the safe_factor parameter; it distinguishes candidate-signal counts from exact filtered counts and advises choosing the right query path for each need.