[PR] [common][flink] Fix BlobDescriptor lost during shuffle serialization [paimon]

["liming30 (via GitHub)" <gi...@apache.org>]

liming30 opened a new pull request, #8494:
URL: https://github.com/apache/paimon/pull/8494

   
   ### Purpose
   
   close #8493 
   
   [common][flink] Fix BlobDescriptor lost during shuffle serialization
   
   `writeBlob()` and `BlobSerializer` called `blob.toData() `which downloads the actual file content for `BlobRef`, discarding the descriptor metadata. After `BinaryRow` deserialization the sink receives `BlobData` instead of `BlobRef`, causing `"Blob data can not convert to descriptor"` errors on tables with `blob-descriptor-field` when source and sink parallelism differ.
   
   
   ### Tests
   
   - `org.apache.paimon.flink.BlobTableITCase#testBlobDescriptorFieldStreamingWriteWithShuffle`
   - `org.apache.paimon.flink.BlobTableITCase#testBlobDescriptorFieldBatchWriteWithShuffle`


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Re: [PR] [common][flink] Fix BlobDescriptor lost during shuffle serialization [paimon]

["JingsongLi (via GitHub)" <gi...@apache.org>]

JingsongLi merged PR #8494:
URL: https://github.com/apache/paimon/pull/8494


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