Inspectable inventory
Evidence you can open today
typed SQL recipes
Planned and executed with Apache DataFusion 45.2.0.
Inspect the evidencefixture-tested recipes
Run against deterministic browser fixtures with expected result checks.
Inspect the evidenceversioned lab tables
18 guided lessons use the same downloadable dataset.
Inspect the evidencefield-level event contracts
Each contract documents types, privacy guidance, examples, and validation checks.
Inspect the evidenceClaim register
What each public proof can support
| Claim | Status | Evidence | Boundary |
|---|---|---|---|
| Published SQL is compatible with the documented schemas | Machine checked | Every recipe is planned and executed against typed empty tables with Apache DataFusion 45.2.0. | This proves engine compatibility, not that a business definition fits your data. |
| Selected SQL examples return the displayed synthetic output | Fixture checked | 30 recipes execute deterministic fixtures and compare expected values within displayed precision. | Synthetic fixtures demonstrate behavior; they are not production performance or customer outcomes. |
| The learning dataset is reproducible | Versioned artifact | 15 tables and 18 lessons share downloadable SQL, JSON, and CSV data. | The dataset is designed for learning and evaluation, not capacity planning. |
| Telemetry has universal latency, throughput, or cost advantages | Not claimed | No universal performance result is published because workload, schema, retention, concurrency, region, and cache state materially affect it. | Run the protocol below against your workload before making a purchasing or architecture decision. |
Reproducible protocol
How to produce a defensible performance result
Freeze the workload
Publish the event schema, row count, data volume, cardinalities, time range, query set, concurrency, and expected result shape.
Record the environment
Document product version, region, compute tier, retention, network path, cache state, warm-up policy, and client timing method.
Separate correctness from speed
Reconcile every query with known fixture output before measuring latency. A fast wrong answer is not a valid result.
Run repeated trials
Report trial count, p50, p95, failures, timeouts, ingestion lag, and total test window rather than one favorable request.
Publish exclusions and caveats
Identify discarded trials, incomplete buckets, provider limits, configuration differences, and any result the test cannot support.
Published result register
Approved performance runs only
A result appears here only after correctness reconciliation, complete environment disclosure, raw-result retention, caveat review, and approval for public use. Internal experiments and synthetic SQL outputs are excluded.
No approved performance result is currently published.
This is an explicit evidence boundary, not a zero result. Use the protocol and template to produce a workload-specific run.
- Run identifier, UTC measurement window, and product version
- Public event schema, event count, byte volume, field cardinalities, and query set
- Client and service regions, product tier, retention, concurrency, and network path
- Cache state, warm-up policy, trial count, failures, timeouts, p50, and p95
- Correctness checks, exclusions, caveats, raw result artifact, and reviewer approval