luoyuxia opened a new pull request, #2880: URL: https://github.com/apache/fluss/pull/2880
### Purpose Linked issue: close #2879 This PR backports the `$binlog` update-pairing fix to `release-0.9`. When one Flink `SourceReader` processes records from multiple log splits, `$binlog` can interleave `UPDATE_BEFORE` / `UPDATE_AFTER` records from different splits. The previous implementation kept only one global pending `UPDATE_BEFORE` record, which could be overwritten by another split and then fail with: ```text Received UPDATE_AFTER (+U) without a preceding UPDATE_BEFORE (-U) record. ``` ### Brief change log - keep pending `UPDATE_BEFORE` state per split instead of using one global buffer; - pass the current split id through the emitter/deserialization path for `$binlog`; - pair `UPDATE_BEFORE` and `UPDATE_AFTER` only within the same split; - add a regression test for cross-split interleaving in `BinlogRowConverterTest`. ### Tests - Added `BinlogRowConverterTest#testCrossSplitInterleavingDoesNotCorrupt` - Not run locally ### API and Format No API or storage format changes. ### Documentation No. -- 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]
