Pandas886 opened a new issue, #502: URL: https://github.com/apache/paimon-rust/issues/502
### Describe the feature I'd like to write changelog-style rows into a primary-key table by putting the row kind (`+I` / `-U` / `+U` / `-D`) in a user column, matching Java's `rowkind.field` option. Today the Rust write path fails loud with something like "KeyValueFileWriter does not support rowkind.field", even though the option can already be parsed. ### Motivation This is useful for CDC / ETL pipelines that already carry a short string op column and don't want to invent a separate `_VALUE_KIND` convention on the client side. ### Proposed scope - Parse short-string row kinds (`+I`, `-U`, `+U`, `-D`) - Honor `rowkind.field` on **deduplicate** PK tables only - Validate the configured field (exists, STRING, not conflicting with system columns) - Support `ignore-delete` / `ignore-update-before` filtering when writing - Integration tests aligned with the Java ITCase scenarios I could map over Out of scope for this issue: other merge engines, lookup/compact, DataFusion SQL surface. ### Additional context Happy to send a PR if this direction looks good. -- 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]
