How to get a one-dimensional scalar array as a doctrine dql query result?

Question

I want to get an array of values from the id column of the Auction table. If this was a raw SQL I would write:

SELECT id FROM auction

But w

Answer 1

I think it's impossible in Doctrine. Just transform result array into the data structure you want using PHP:

$transform = function($item) {
    return $item['id'];
};
$result = array_map($transform, $em->createQuery("SELECT a.id FROM Auction a")->getScalarResult());