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I am getting the below error while trying to flatten nested JSON data in my elastic sink connector. my main purpose is to whitelist the required fields for my elastic index. When I tried to use a direct whitelist that will not consider nested fields in it. so that's the reason to do flatten first and then rename those nested fields and then whitelist those required fields. Is there any other way we can achieve this?
Caused by: org.apache.kafka.connect.errors.DataException: Flatten transformation does not support class java.util.ArrayList for record without schemas
Hello,
I am getting the below error while trying to flatten nested JSON data in my elastic sink connector. my main purpose is to whitelist the required fields for my elastic index. When I tried to use a direct whitelist that will not consider nested fields in it. so that's the reason to do flatten first and then rename those nested fields and then whitelist those required fields. Is there any other way we can achieve this?
Caused by: org.apache.kafka.connect.errors.DataException: Flatten transformation does not support class java.util.ArrayList for record without schemas
Thank you for your help in advance!