RangeRowAdapter

public struct RangeRowAdapter : RowAdapter

RangeRowAdapter is a row adapter that only exposes a range of columns.

let adapter = RangeRowAdapter(1..<3)
let sql = "SELECT 1 AS foo, 2 AS bar, 3 AS baz, 4 as qux"

// <Row bar:2 baz: 3>
try Row.fetchOne(db, sql, adapter: adapter)