streams/Code/Update/_1206.php

<?php

namespace Code\Update;

class _1206
{

    public function run()
    {

        if (ACTIVE_DBTYPE == DBTYPE_MYSQL) {
            $r = q("ALTER TABLE item 
				ADD INDEX uid_resource_type (uid, resource_type)
			");

            if ($r) {
                return UPDATE_SUCCESS;
            }
            return UPDATE_FAILED;
        } else {
            return UPDATE_SUCCESS;
        }
    }
}