Select all columns but a few ones

[groue]

This pull request makes it possible to select all columns but a set of excluded columns.

It makes it easier to define record types that do not select all columns. For example:

try db.create(table: "player") { t in
    t.autoIncrementedPrimaryKey("id")
    t.column("score", .integer).notNull()
    t.column("bonus", .integer).notNull()
    t.column("totalScore", .integer).generatedAs(sql: "score + bonus")
}

struct Player: Codable {
    // No property for `totalScore`
    var id: Int64
    var score: Int
    var bonus: Int
}

extension Player: FetchableRecord, PersistableRecord {
    // Don't select totalScore
    static var databaseSelection: [any SQLSelectable] {
        [.allColumns(excluding: ["totalScore"])] // NEW!
    }
}

// SELECT id, score, bonus FROM player
let players = try dbQueue.read { db in
    try Player.fetchAll(db)
}

[ASISBusiness]

This pull request makes it possible to select all columns but a set of excluded columns.

It makes it easier to define record types that do not select all columns. For example:

try db.create(table: "player") { t in

    t.autoIncrementedPrimaryKey("id")

    t.column("score", .integer).notNull()

    t.column("bonus", .integer).notNull()

    t.column("totalScore", .integer).generatedAs(sql: "score + bonus")

}



struct Player: Codable {

    // No property for `totalScore`

    var id: Int64

    var score: Int

    var bonus: Int

}



extension Player: FetchableRecord, PersistableRecord {

    // Don't select totalScore

    static var databaseSelection: [any SQLSelectable] {

        [.allColumns(excluding: ["totalScore"])] // NEW!

    }

}



// SELECT id, score, bonus FROM player

let players = try dbQueue.read { db in

    try Player.fetchAll(db)

}