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Posted to github@beam.apache.org by GitBox <gi...@apache.org> on 2021/09/27 22:47:14 UTC

[GitHub] [beam] robertwb commented on pull request #15510: [BEAM-12883] Add coder for ReadableFileCoder that supports MetadataCoderV2

robertwb commented on pull request #15510:
URL: https://github.com/apache/beam/pull/15510#issuecomment-928390587


   I think the only way to preserver backwards compatibility here is to add a new coder and also add an opt-in mechanism for users to select this new coder. It may be worth considering making this coder more extensible so this doesn't happen in the future (e.g. storing the values as a key-value map and ignoring unknown fields, which is less efficient but probably doesn't matter for this coder vs. the chances that we'll want to add a new field in the future.)


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