Piwik\Columns\Updater::mixinUpdates PHP Method

    private function mixinUpdates($allUpdatesToRun, $updatesFromDimension)
    {
        if (!empty($updatesFromDimension)) {
            foreach ($updatesFromDimension as $table => $col) {
                if (empty($allUpdatesToRun[$table])) {
                    $allUpdatesToRun[$table] = $col;
                } else {
                    $allUpdatesToRun[$table] = array_merge($allUpdatesToRun[$table], $col);
                }
            }
        }
        return $allUpdatesToRun;
    }