String不行,取出来的值是null

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Sender: silence<[email protected]>
Recipient: user-zh<[email protected]>
Date: Monday, Dec 7, 2020 14:26
Subject: Re: FlinkSQL如何定义JsonObject数据的字段类型


可以用string -- Sent from: http://apache-flink.147419.n8.nabble.com/

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