Which Iceberg catalogs work between your write engine and read engine? Spin to find out — or just click the engine chips.
🔗 Live site: https://b-per.github.io/iceberg-roulette/
Pick a write engine and a read engine (or spin the roulette wheels). The app shows you which Apache Iceberg catalog types work for that combination, with support levels:
- ✓ full — both engines support this catalog with no known blockers
- ⚠ partial — works, but with caveats (click to expand limitations)
- ✗ none — not supported
snowflake · bigquery · databricks · duckdb · redshift · trino · athena · postgres · cloudflare
| Catalog | Notes |
|---|---|
| AWS Glue | |
| REST / Polaris / Open Catalog | Includes any Iceberg REST-compatible endpoint |
| Hive Metastore | |
| AWS S3 Tables | Managed Iceberg REST catalog, GA since Nov 2024 |
| Unity Catalog | Databricks Unity Catalog Iceberg REST |
| DuckLake | DuckDB-native catalog backed by a DuckDB file |
| Cloudflare Basin Catalog | Cloudflare's managed Iceberg REST catalog on R2 (formerly R2 Data Catalog); queried by Cloudflare's read-only Basin SQL engine (formerly R2 SQL) |
Data last verified against official documentation in October 2026. Verify against official docs before going to prod.
pnpm install
pnpm dev # http://localhost:5173/iceberg-roulette/
pnpm test # vitest
pnpm build # output → dist/Corrections and additions welcome — the compatibility data lives in src/data/compatibility.ts. Tests are in src/data/compatibility.test.ts.