最后一個實戰消費卡夫卡的有成功的嗎,運行無法成功
報錯信息如下
org.apache.flink.table.api.ValidationException: Type 'java.lang.Object' cannot be used in a grouping operation because it does not implement a proper hashCode() method.
報錯信息如下
org.apache.flink.table.api.ValidationException: Type 'java.lang.Object' cannot be used in a grouping operation because it does not implement a proper hashCode() method.
2022-12-12
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