bowenli86 opened a new pull request #8433: [FLINK-12505][hive] Unify database operations to HiveCatalogBase from its subclasses URL: https://github.com/apache/flink/pull/8433 ## What is the purpose of the change Currently each subclass of HiveCatalogBase has its own impl for catalog related database APIs and its own util class to support such impl. However, they share many common code. This PR unifies their common parts to make the code cleaner and more readable. ## Brief change log - moved `getDatabase`, `createDatabase`, and `alterDatabase` APIs to `HiveCatalogBase` from its subclasses. Added interfaces to allow their own specific code, and unified common implementations in `HiveCatalogBase` - removed `GenericHiveMetastoreCatalogUtil` and `HiveCatalogUtil` ## Verifying this change This change is already covered by existing tests, such as *GenericHiveMetastoreCatalogTest* and *HiveCatalogTest*. ## 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, Yarn/Mesos, 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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