nevzheng opened a new pull request, #12075: URL: https://github.com/apache/gravitino/pull/12075
### What changes were proposed in this pull request? Define and document Trino compatibility for the five Gravitino V3-native type families. All five families—nanosecond timestamps, Variant, Unknown/Null, Geometry, and Geography—are rejected before delegation because the supported Trino connector surface cannot preserve their complete Gravitino semantics. ### Why are the changes needed? Passing these types through to Trino would either fail downstream or lose precision and metadata. Rejecting them at the adapter boundary provides a stable error and guarantees that the delegated connector is not invoked. Fix: #12059 Related: #12056 ### Does this PR introduce _any_ user-facing change? Yes. Unsupported V3-native schemas now fail deterministically instead of reaching a downstream connector or being represented opaquely. ### How was this patch tested? - Added bidirectional `IcebergDataTypeTransformer` rejection coverage. - Verified delegated connector operations are not invoked. - Covered the default Trino suite and Trino 478. - Updated `docs/trino-connector/catalog-iceberg.md`. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
