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Minor - Add comment on weird query - refs BT#9092

Yannick Warnier 10 years ago
parent
commit
323a6c8e06
1 changed files with 2 additions and 0 deletions
  1. 2 0
      main/inc/lib/sessionmanager.lib.php

+ 2 - 0
main/inc/lib/sessionmanager.lib.php

@@ -5231,6 +5231,8 @@ class SessionManager
         $sessionId = intval($sessionId);
         $userId = intval($userId);
 
+        // COUNT(1) actually returns the number of rows from the table (as if
+        // counting the results from the first column)
         $sql = "SELECT COUNT(1) AS qty FROM $sessionRelUserTable "
             . "WHERE id_session = $sessionId AND id_user = $userId AND relation_type = 0";