Prevent sequence reset with certain DB backends (Bug #13876).

horde · Mar 9, 2015 · d665982 · d665982
1 parent e881e3e
commit d665982
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/framework/History/lib/Horde/History/Sql.php b/framework/History/lib/Horde/History/Sql.php
@@ -355,7 +355,9 @@ protected function _nextModSeq()
     {
         try {
             $result = $this->_db->insert('INSERT INTO horde_histories_modseq (history_modseqempty) VALUES(0)');
-            $this->_db->delete('DELETE FROM horde_histories_modseq WHERE history_modseq <> ?', array($result));
+            // Don't completely empty the table to prevent sequence from being reset
+            // when using certain RDBMS, like postgres (see Bug #13876).
+            $this->_db->delete('DELETE FROM horde_histories_modseq WHERE history_modseq < (? - 25)', array($result));
         } catch (Horde_Db_Exception $e) {
             throw new Horde_History_Exception($e);
         }