You can use ` ` to surround the field
原始邮件 发件人:lakeshenshenleifight...@gmail.com 收件人:dev...@flink.apache.org; useru...@flink.apache.org 发送时间:2019年12月10日(周二) 14:05 主题:Flink SQL Kafka topic DDL ,the kafka' json field conflict with flinkSQL Keywords Hi community, when I use Flink SQL DDL ,the kafka' json field conflict with flink SQL Keywords,my thought is that using the UDTF to solve it . Is there graceful way to solve this problem?