Evidence-backed facts
- Apache Druid exposes SQL query submission, parameters, result formats, headers, and cancellation through HTTP endpoints. informative
- SQL queries are distinct from ingestion specs, task submission, compaction, segment management, coordinator, overlord, and security administration. informative
- Authentication, authorizers, datasource permissions, SQL context, resource limits, TLS, and cluster roles determine effective access. informative
- Druid SQL support does not prove relational equivalence, exact source freshness, query success, complete data, or a running secured cluster. informative