diff -Nur zabbix-1.5.3/include/db.h zabbix-1.5.3.fike/include/db.h
--- zabbix-1.5.3/include/db.h	2008-06-04 16:57:03.000000000 -0300
+++ zabbix-1.5.3.fike/include/db.h	2008-08-04 11:05:50.168828859 -0300
@@ -487,7 +487,6 @@
 void	DBinit();
 
 void    DBclose(void);
-void    DBvacuum(void);
 
 #ifdef HAVE___VA_ARGS__
 #	define DBexecute(fmt, ...) __zbx_DBexecute(ZBX_CONST_STRING(fmt), ##__VA_ARGS__)
diff -Nur zabbix-1.5.3/include/zbxdb.h zabbix-1.5.3.fike/include/zbxdb.h
--- zabbix-1.5.3/include/zbxdb.h	2008-06-04 16:57:03.000000000 -0300
+++ zabbix-1.5.3.fike/include/zbxdb.h	2008-08-04 11:06:12.440828932 -0300
@@ -116,7 +116,6 @@
 void	zbx_db_init(char *host, char *user, char *password, char *dbname, char *dbsocket, int port);
 
 void    zbx_db_close(void);
-void    zbx_db_vacuum(void);
 
 int	zbx_db_vexecute(const char *fmt, va_list args);
 
diff -Nur zabbix-1.5.3/src/libs/zbxdbhigh/db.c zabbix-1.5.3.fike/src/libs/zbxdbhigh/db.c
--- zabbix-1.5.3/src/libs/zbxdbhigh/db.c	2008-06-04 16:57:04.000000000 -0300
+++ zabbix-1.5.3.fike/src/libs/zbxdbhigh/db.c	2008-08-04 11:08:06.687853764 -0300
@@ -1601,32 +1601,6 @@
 	return SUCCEED;
 }
 
-void	DBvacuum(void)
-{
-#ifdef	HAVE_POSTGRESQL
-	char *table_for_housekeeping[]={"services", "services_links", "graphs_items", "graphs", "sysmaps_links",
-			"sysmaps_elements", "sysmaps_link_triggers","sysmaps", "config", "groups", "hosts_groups", "alerts",
-			"actions", "events", "functions", "history", "history_str", "hosts", "trends",
-			"items", "media", "media_type", "triggers", "trigger_depends", "users",
-			"sessions", "rights", "service_alarms", "profiles", "screens", "screens_items",
-			NULL};
-
-	char	*table;
-	int	i;
-
-	zbx_setproctitle("housekeeper [vacuum DB]");
-
-	i=0;
-	while (NULL != (table = table_for_housekeeping[i++]))
-	{
-		DBexecute("vacuum analyze %s", table);
-	}
-#endif
-
-#ifdef	HAVE_MYSQL
-	/* Nothing to do */
-#endif
-}
 
 void    DBescape_string(const char *str, char *to, int maxlen)
 {  /* NOTE: sync changes with 'DBdyn_escape_string' */
diff -Nur zabbix-1.5.3/src/zabbix_server/housekeeper/housekeeper.c zabbix-1.5.3.fike/src/zabbix_server/housekeeper/housekeeper.c
--- zabbix-1.5.3/src/zabbix_server/housekeeper/housekeeper.c	2008-06-04 16:57:03.000000000 -0300
+++ zabbix-1.5.3.fike/src/zabbix_server/housekeeper/housekeeper.c	2008-08-04 11:08:40.159854884 -0300
@@ -354,13 +354,6 @@
 
 		housekeeping_sessions(now);
 
-		zbx_setproctitle("housekeeper [vacuuming database]");
-
-/* Transaction is not required here. It causes timeouts under MySQL */
-/*		DBcommit();*/
-
-		DBvacuum();
-
 		zabbix_log( LOG_LEVEL_DEBUG, "Sleeping for %d hours",
 			CONFIG_HOUSEKEEPING_FREQUENCY);