RangeRowAdapter

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

RowAdapter.swift:474
struct RangeRowAdapter

For example:

let adapter = RangeRowAdapter(1..<3)
let sql = "SELECT 0 AS a, 1 AS b, 2 AS c, 3 AS d"

// [b:1 c:2]
try Row.fetchOne(db, sql: sql, adapter: adapter)