Gorm How to declare a model start with '_' in Gorm?

I'm trying to declare a model and insert some data in a table with a column named '_update_time'.

type User struct{ ... UpdateTime time.Time gorm:"column(_update_time)" ... } However, it doesn't work with the Error 'Unknown column 'update_time' in 'field list'.

It works when I try to "create from map" but I need the back filled primary key :(

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