if field.DataType == Time {
			field.AutoCreateTime = UnixTime
		} else if strings.ToUpper(v) == "NANO" {
			field.AutoCreateTime = UnixNanosecond
		} else if strings.ToUpper(v) == "MILLI" {
			field.AutoCreateTime = UnixMillisecond
		} else {
			field.AutoCreateTime = UnixSecond
		}
	}

		AutoUnixCreateTime      int32  `gorm:"autocreatetime"`
		AutoUnixMilliCreateTime int    `gorm:"autocreatetime:milli"`
		AutoUnixNanoCreateTime  int64  `gorm:"autocreatetime:nano"`
		AutoUnixUpdateTime      uint32 `gorm:"autoupdatetime"`
		AutoUnixMilliUpdateTime int    `gorm:"autoupdatetime:milli"`
		AutoUnixNanoUpdateTime  uint64 `gorm:"autoupdatetime:nano"`
	}

	DB.Migrator().DropTable(&CustomizeFieldStruct{})