Flink 1.9 SQL Kafka Connector，Json format，how to d

Flink 1.9 SQL Kafka Connector，Json format，how to deal with not json message? Hi community,when I write the flink ddl sql like this:

CREATE TABLE kafka_src ( id varchar, a varchar, b TIMESTAMP, c TIMESTAMP ) with ( ... 'format.type' = 'json', 'format.property-version' = '1', 'format.derive-schema' = 'true', 'update-mode' = 'append' );

If the message is not the json format ,there is a error in the log。 My question is that how to deal with the message which it not json format? My thought is that I can catch the exception in JsonRowDeserializationSchema deserialize() method,is there any parameters to do this? Thanks your replay.*来自志愿者整理的flink邮件归档