yihua commented on code in PR #660:
URL: https://github.com/apache/hudi-rs/pull/660#discussion_r3788765172


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crates/core/schemas/HoodieDeleteRecord.avsc:
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Review Comment:
   Answering my own question after tracing it: the list file is the wire schema 
(wrapper-record union, what Java serializes) and this file is its post-unwrap 
companion, where each union position holds the bare primitive inside the 
wrapper at the same position, which `avro_schema_for_delete_record` indexes to 
build the narrowed reader schema after `unwrap_ordering_value` strips the 
wrapper (pinned by `test_schema_for_delete_record`). Since only their own tests 
still call those helpers, a follow-up could either cross-reference the two 
files in a comment or drop this one with the helpers.



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