ziyanTOP opened a new issue, #663: URL: https://github.com/apache/doris-flink-connector/issues/663
## Problem Summary When using `mongodb-sync-database`, Debezium may serialize `fullDocument` as a JSON string (TextNode) instead of an ObjectNode. The current `MongoJsonDebeziumDataChange.extractAfterRow()` directly passes this TextNode to `JsonNodeExtractUtil.extractAfterRow()`, which expects an ObjectNode, causing `ClassCastException` or deserialization errors. ## Root Cause `extractAfterRow()` does not check if the `fullDocument` field is a TextNode. When it is a textual JSON string, it should be parsed into an ObjectNode first. ## Proposed Changes Add a check in `extractAfterRow()`: if `dataNode` is textual, parse it with `ObjectMapper.readTree()` before extracting row data. ## Checklist 1. Does it affect the original behavior: No 2. Has unit tests been added: No 3. Has document been added or modified: No Need 4. Does it need to update dependencies: No 5. Are there any changes that cannot be rolled back: 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] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
