Issue #2554241 by neclimdul: mysql's Schema implementation can only provide...

Issue #2554241 by neclimdul: mysql's Schema implementation can only provide information about the default connection

core/lib/Drupal/Core/Database/Driver/mysql/Schema.php

@@ -61,8 +61,7 @@ protected function getPrefixInfo($table = 'default', $add_prefix = TRUE) {
       $info['table'] = substr($table, ++$pos);
     }
     else {
-      $db_info = Database::getConnectionInfo();
-      $info['database'] = $db_info[$this->connection->getTarget()]['database'];
+      $info['database'] = $this->connection->getConnectionOptions()['database'];
       $info['table'] = $table;
     }
     return $info;