xueyumusic opened a new pull request #7059: [FLINK-10686][table] Port UDFs in Table API extension points to flink-table-common URL: https://github.com/apache/flink/pull/7059 ## What is the purpose of the change This PR tries to port UDFs interfaces of TableApi extension points to flink-table-common in java. Right now it ports UserDefinedFunction, ScalarFunction, TableFunction, AggregateFunction, DistinctAggregateFunction in org.apache.flink.table.functions execpt FunctionService and TemporalTableFunction. FunctionService and TemporalTableFunction may be could be ported following. ## Brief change log *(for example:)* - *port several scala file in org.apache.flink.table.functions to java * ## Verifying this change This change is a code refactor with existed 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 documented)
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