KAFKA-13433:JsonConverter's method convertToJson when field is optional with default value and value is null, return default value. #11644
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Issue is here .
Problem:
JsonConverter's method convertToJson when field is optional with default value and value is null, return default value.
It should return
null
value.I found this scene when use debezium as cdc source. I create a table with a field (optional with default value), insert into a row with 'null' value, but got default value from debezium, with debug source code I found kafka-connect class 'JsonConverter'.