Myasuka opened a new pull request #10383: [FLINK-14997] Avoid to call unnecessary delete within RocksDBState's mergeNamespaces implementation URL: https://github.com/apache/flink/pull/10383 ## What is the purpose of the change This helps to improve the performance after FLINK-7700 resolved. ## Brief change log Changes to `RocksDBAggregatingState.java`, `RocksDBListState.java` and `RocksDBReducingState.java` which have the `mergeNamespaces` method. ## Verifying this change This change is already covered by existing tests. ## 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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