object Paintings: UUIDTable() {
    ...
    val description = text("description").default("")
    ...
}

class Painting(id: EntityID<UUID>) : UUIDEntity(id) {
    ...

    var description by Paintings.description

    ...
}

class Painting(id: EntityID<UUID>) : UUIDEntity(id) {
    ...

    var description by property<String>()
    fun descriptionProperty() = getProperty(Painting::description)

    ...
}

class Painting(id: EntityID<UUID>) : UUIDEntity(id) {
    ...

    var description by Paintings.description notify property<String>()
    fun descriptionProperty() = getProperty(Painting::description)

    ...
}

open class Entity<ID:Comparable<ID>>(val id: EntityID<ID>) {
    ...

    operator fun <T> Column<T>.getValue(o: Entity<ID>, desc: KProperty<*>): T =
        lookup()

    operator fun <T> Column<T>.setValue(o: Entity<ID>, desc: KProperty<*>, value: T) {...}

//Global Extension instead of scoped to `Entity`
infix fun <T> Column<T>.notify(fxProperty: PropertyDelegate<T>) {
    return DelegateWrapper(this,fxProperty)
}

class DelegateWrapper<T>(val column: Column<T>, val fxProperty: PropertyDelegate<T>) {

    operator fun getValue(thisRef: Any?, property: KProperty<*>): String {
        return column.getValue(...)  <-cannot resolve getValue
    }

    operator fun setValue(thisRef: Any?, property: KProperty<*>, value: String)
    {
        ...
    }
}