Hi all, I got an expression like

transaction {
    Restaurants.slice(Restaurants.followers.min(),Restaurants.id)
            .selectAll()
            .groupBy(Restaurants.id)
            .first()
}

and I have a simple mapper

private fun toRestaurantUserName(row: ResultRow) = RestaurantUserNameDto(
        id = row[Restaurants.id],
        numberOfFollowers = row[Restaurants.followers.min()]!!
)

my question is when I want to fetch Restaurants.followers.min(), should I use

row[Restaurants.followers.min()]!!

these one with double !!, or is it better way to write the code?Thank you

It depends on you data. For example, if your

followers

column is nullable and you will run such query then you can get null as a result. Also, if you will call

min()

on a column which comes from a

left join

table you will face the same

null

value in a result row.

Got you, thank you very much