manuzhang opened a new issue, #15924: URL: https://github.com/apache/iceberg/issues/15924
### Feature Request / Improvement ### Description `RewriteTablePathUtil.rewriteDVFile` currently rewrites deletion vector (DV) Puffin files by reading all rewritten blobs into an in-memory list before writing them out, which can create unnecessary memory pressure when rewriting larger DV files or files with many blobs. ### Suggested improvement Refactor `RewriteTablePathUtil.rewriteDVFile` to stream rewritten blobs directly to the output `PuffinWriter` while iterating through the source blobs, instead of collecting all rewritten blobs into a temporary list first. ### Query engine None ### Willingness to contribute - [ ] I can contribute this improvement/feature independently - [ ] I would be willing to contribute this improvement/feature with guidance from the Iceberg community - [ ] I cannot contribute this improvement/feature at this time -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
