dianfu opened a new pull request #7196: [FLINK-10974] [table] Add support for flatMap to table API URL: https://github.com/apache/flink/pull/7196 ## What is the purpose of the change *This pull request adds the flatMap operation to the table API.* ## Brief change log - *Move the implicit tableFunctionCall2Table from package.scala to expressionDsl.scala* - *Add implicit in expressionDsl.scala which can convert a TableFunction to an Expression* - *Add flatMap API in table.scala* ## Verifying this change This change added tests and can be verified as follows: - *Added FlatMapTest/FlatMapITCase/FlatMapValidationTest/FlatMapStringExpressionTest* ## 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? (yes) - If yes, how is the feature documented? (docs)
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