twalthr opened a new pull request #8500: [FLINK-12254][table-common] More preparation for using the new type system URL: https://github.com/apache/flink/pull/8500 ## What is the purpose of the change This PR contains another set of utility classes for enabling the new type system. The most important part is the `LegacyTypeInfoDataTypeConverter`. It basically allows converting all the type information that we supported in the Table & SQL API before to DataType. ## Brief change log See commit messages. ## Verifying this change Tested via `LegacyTypeInfoDataTypeConverterTest` and 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? JavaDocs
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