Index: database/updates.inc
===================================================================
RCS file: /cvs/drupal/drupal/database/Attic/updates.inc,v
retrieving revision 1.224.2.6
diff -u -F^f -r1.224.2.6 updates.inc
--- database/updates.inc	8 Jun 2006 21:25:50 -0000	1.224.2.6
+++ database/updates.inc	23 Nov 2006 17:43:51 -0000
@@ -2013,3 +2013,20 @@ function system_update_182() {
 
   return $ret;
 }
+
+// Ad an index on watchdog:type
+function system_update_183() {
+  $ret = array();
+
+  switch ($GLOBALS['db_type']) {
+    case 'mysql':
+    case 'mysqli':
+      $ret[] = update_sql("ALTER TABLE {watchdog} ADD INDEX (type)");
+      break;
+    case 'pgsql':
+      $ret[] = update_sql('CREATE INDEX {watchdog}_type_idx ON {watchdog}(type)');
+      break;
+  }
+
+  return $ret;
+}