dawidwys opened a new pull request #8475: [FLINK-12512][table-planner] Create a new instance of CostFactory, FlinkTypeSystem & FlinkTypeFactory per TableEnvironment URL: https://github.com/apache/flink/pull/8475 ## What is the purpose of the change `CostFactory`, `FlinkTypeSystem` and `FlinkTypeFactory` maintain internal state, so we cannot reuse them for multiple TableEnvironments. ## Brief change log - Make `CostFactory`, `FlinkTypeSystem` and `FlinkTypeFactory` non static in `PlanningConfigurationBuilder` ## Verifying this change This should fix the random failures of `org.apache.flink.table.api.stream.table.TableSourceTest#testNestedProject` ## Does this pull request potentially affect one of the following parts: - Dependencies (does it add or upgrade a dependency): (yes / **no**) - The public API, i.e., is any changed class annotated with `@Public(Evolving)`: (yes / **no**) - The serializers: (yes / **no** / don't know) - The runtime per-record code paths (performance sensitive): (yes / **no** / don't know) - Anything that affects deployment or recovery: JobManager (and its components), Checkpointing, Yarn/Mesos, ZooKeeper: (yes / **no** / don't know) - The S3 file system connector: (yes / **no** / don't know) ## Documentation - Does this pull request introduce a new feature? (yes / **no**) - If yes, how is the feature documented? (**not applicable** / docs / JavaDocs / not documented)
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