/**
* @param array $queries
*
* @return array
* @throws SQLBatchException
*/
private function executeQueries(array $queries)
{
$results = $this->binding->sqlBatch($queries)['result'];
if (!is_array($results) || count($results) !== 1) {
throw new SQLBatchException('unexpected response from server when executing batch request');
}
$res = [];
foreach ($results[0] as $k => $v) {
if ($k[0] === 'n') {
$res[substr($k, 1)] = $v;
}
}
return $res;
}
