shunping commented on PR #34899: URL: https://github.com/apache/beam/pull/34899#issuecomment-2868931621
If every PTransform has only one input PCollection and only one output PCollection, then it sounds also ok to say a Pipeline is a DAG of PCollections. However, some PTransform takes multiple inputs, like Flatten. Say the input PCollections are A and B and the output of Flatten is C. It will be weird to say A,B,C are nodes, because now we have two edges A-C and B-C, and both edges represent the same Flatten Transform. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: github-unsubscr...@beam.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org