Fokko opened a new pull request #13585:
URL: https://github.com/apache/beam/pull/13585
**Please** add a meaningful description for your change here
Exploring how to write Iceberg tables using Beam.
By removing the PDone, and emit the files that are written, we can add these
to the Table Format, such as Iceberg.
Exploring the possible approaches, but I think this is a very fruitful
direction since we can fully re-use the existing Avro/Parquet/.. writers, and
emit the WriteFilesResult to the next operator, which will append the new files
to the Iceberg log.
My suggestion would be to change the API in Apache Beam so we can use the
`WriteFilesResult`. Add the Iceberg extension in the Iceberg repository itself.
This will be a `PTransform<WriteFilesResult<?>, PDone>`. Maybe I'll change the
`PDone` to a `Table` (Iceberg Table) as well. So you can signal downstream
consumers. I'll open this PR somewhere next week, but would like to know your
idea's as well! :)
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