import arrow.aql.extensions.list.select.*
import arrow.aql.extensions.list.union.union
import arrow.aql.extensions.listk.select.selectAll

data class Student(val name: String, val age: Int)

val john = Student("John", 30)
val jane = Student("Jane", 32)
val jack = Student("Jack", 32)
val chris = Student("Chris", 40)

fun main(args: Array<String>) {
//sampleStart
val queryA = listOf("customer" to john, "customer" to jane).query { selectAll() }
val queryB = listOf("sales" to jack, "sales" to chris).query { selectAll() }
val result = queryA.union(queryB).value()
//sampleEnd
println(result)
}