LadyForest opened a new pull request, #21097:
URL: https://github.com/apache/flink/pull/21097
## What is the purpose of the change
This pull request fixes the issue that when dropping a catalog in use, the
following `SHOW CURRENT CATALOG` still displays the dropped catalog by
preventing users from dropping a catalog in use.
## Brief change log
Let `CatalogManager#unregisterCatalog` throws `CatalogException` when
dropping a catalog in use.
## Verifying this change
This change is a trivial rework and can be verified as follows:
- `CatalogITCase#testDropCatalog`
- `TableEnvironmentTest#testExecuteSqlWithCreateUseDropCatalog`
- `catalog_database.q` which executed by `ClientITCase`
## 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)`: no
- 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 introduces a new feature? no
- If yes, how is the feature documented? not applicable
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