plus

open operator fun ColumnReference<Int>.plus(a: Int): Int
open operator fun ColumnReference<Long>.plus(a: Long): Long
open operator fun ColumnReference<Double>.plus(a: Double): Double
open operator fun ColumnReference<String>.plus(a: String): String
open operator fun Int.plus(col: ColumnReference<Int>): Int
open operator fun Long.plus(col: ColumnReference<Long>): Long
open operator fun Double.plus(col: ColumnReference<Double>): Double