clause.OnConflict{DoNothing: true} using ON DUPLICATE KEY UPDATE `id`=`id` actually？

[wi-cuckoo]

Your Question

my code is：

if err := getClientWithContext(ctx).
	Clauses(clause.OnConflict{DoNothing: true}).
	Create(relList).
	Error; err != nil {
	return fmt.Errorf("%w, insert relList failed", err)
}

I found the sql in gorm log is INSERT INTO ... ON DUPLICATE KEY UPDATE id=id.
Why clause.OnConflict{DoNothing: true} using ON DUPLICATE KEY UPDATE id=id actually？Not INSERT IGNORE

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