
Qdrant SQL with QQL 0.4.0: Bulk Upsert, Batch & Migrate
Build fast Qdrant SQL applications with QQL 0.4.0. Get AST parameter binding, bulk upsert, one-roundtrip BATCH blocks, and cluster migration with resume.
12 articles on this topic.

Build fast Qdrant SQL applications with QQL 0.4.0. Get AST parameter binding, bulk upsert, one-roundtrip BATCH blocks, and cluster migration with resume.

We replaced Qdrant geo_radius hard filters with GaussDecay and ExpDecay on 8,317 Berlin stays. Ring loss 37% to 0% in 8.1 ms. Code, data, and the 10-persona eval are on GitHub.

We ran Qdrant hybrid search (RRF + ColBERT + FormulaQuery) on 2,034 Supreme Court precedents. Top-1 went from 31.8% to 86.4%. Code, data, and the 22-query eval are on GitHub.

We ran Qdrant 1.19 per-tenant IDF on 457k CQADupStack docs. Top-1 changed on 20% of queries. Labeled nDCG barely moved. Methodology, numbers, and the API.

QQL WASM parses and projects REST routes locally while you type. Execute only when you click. No cluster round-trip in the editor.

Qdrant trusts the client filter. Inject tenant predicates into the query AST so agents cannot skip isolation, even under prompt injection.

qql-go is archived. Use the qql CLI from qql-rs for CI, runbooks, and agent-safe Qdrant retrieval. This post is the original design.