Hi @Yudhi Hermawan ,
The issue is related with your data type.
Sum: Only columns with numeric data types can be summed.
Minimum: This operation can be used only with numeric, date, and time data types.
Maximum: This operation can be used only with numeric, date, and time data types.
Please refer: aggregate-transformation
If you want to use these operation, please make sure the data type is correct.
Regards,
Zoe
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