raminqaf opened a new pull request, #27467:
URL: https://github.com/apache/flink/pull/27467
## What is the purpose of the change
This pull request adds a default `toCatalogTable()` method to the
`CatalogMaterializedTable` interface, which converts a materialized table to a
`CatalogTable` for planner query optimization. This extracts the conversion
logic to the interface level, allowing
`ResolvedCatalogMaterializedTable.toResolvedCatalogTable()` to delegate to
`origin.toCatalogTable()` instead of duplicating the conversion logic.
## Brief change log
- Added default method `toCatalogTable()` in `CatalogMaterializedTable`
interface that builds a `CatalogTable` from the materialized table's schema,
comment, distribution, partition keys, options, and snapshot
- Updated `ResolvedCatalogMaterializedTable.toResolvedCatalogTable()` to use
the new `origin.toCatalogTable()` method
## Verifying this change
This change added tests and can be verified as follows:
- Added `testCatalogMaterializedTableToCatalogTable()` in
`CatalogBaseTableResolutionTest` to verify the new `toCatalogTable()` method
preserves all properties (schema, comment, partition keys, options,
distribution, snapshot)
- Added `testResolvedCatalogMaterializedTableToResolvedCatalogTable()` in
`CatalogBaseTableResolutionTest` to verify the conversion from
`ResolvedCatalogMaterializedTable` to `ResolvedCatalogTable` preserves schema
and origin properties
## Does this pull request potentially affect one of the following parts:
- Dependencies (does it add or upgrade a dependency): no
- The public API, i.e., is any changed class annotated with
`@Public(Evolving)`: yes (`CatalogMaterializedTable` is `@PublicEvolving`)
- The serializers: no
- The runtime per-record code paths (performance sensitive): no
- Anything that affects deployment or recovery: JobManager (and its
components), Checkpointing, Kubernetes/Yarn, ZooKeeper: no
- The S3 file system connector: no
## Documentation
- Does this pull request introduce a new feature? no
- If yes, how is the feature documented? not applicable
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