protected function processSubSelect(Select $subselect, PlatformInterface $platform, Driver\DriverInterface $driver = null, Parameters $parameters = null)
{
if ($driver) {
// Track subselect prefix and count for parameters
$this->processInfo['subselectCount']++;
$subselect->processInfo['subselectCount'] = $this->processInfo['subselectCount'];
$subselect->processInfo['paramPrefix'] = 'subselect' . $subselect->processInfo['subselectCount'];
// call subselect
$stmt = $subselect->prepareStatement($platform, $driver);
// copy count
$this->processInfo['subselectCount'] = $subselect->processInfo['subselectCount'];
if ($parameters) {
$parameters->merge($stmt->getParameters());
}
$sql = $stmt->getSql();
} else {
$sql = $subselect->getSqlString($platform);
}
return $sql;
}
