mbutrovich commented on code in PR #1192:
URL: https://github.com/apache/datafusion-comet/pull/1192#discussion_r1901249341


##########
native/core/src/execution/shuffle/shuffle_writer.rs:
##########
@@ -1570,13 +1588,41 @@ pub fn write_ipc_compressed<W: Write + Seek>(
     // write ipc_length placeholder
     output.write_all(&[0u8; 8])?;

Review Comment:
   I know this isn't new code on this PR, but it jumped out at me: can this be 
a seek_relative? For example:
   ```
   // Seek past placeholder for ipc_length.
   output.seek_relative(8)?;
   ```
   I tried it and it seemed to work but I'm not sure I ran all of the necessary 
tests.



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