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We will use use Flink's FileSytem abstraction to download remote resource, which can support all types of file system, including HTTP, S3, HDFS, etc, rather than binding to a specific implementation. Currently in the first version, we will give priority to support HDFS as a resource provider, HDFS is used very much.

Note: Currently, ADD JAR syntax only supports adding local resources. With the release of this advanced function DDL feature, ADD JAR syntax also supports adding remote resources.

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  1. For local resource, changes will be verified by UT.
  2. For hdfs remote resource, changes will be verified by manually.

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