? sites/default/files
? sites/default/settings.php
Index: modules/search/search.install
===================================================================
RCS file: /cvs/drupal/drupal/modules/search/search.install,v
retrieving revision 1.15
diff -u -p -r1.15 search.install
--- modules/search/search.install	15 Mar 2008 12:31:29 -0000	1.15
+++ modules/search/search.install	26 Oct 2008 13:40:48 -0000
@@ -55,7 +55,7 @@ function search_schema() {
         'description' => t('Set to force node reindexing.'),
       ),
     ),
-    'unique keys' => array(
+    'indexes' => array(
       'sid_type' => array('sid', 'type'),
     ),
   );
Index: modules/system/system.install
===================================================================
RCS file: /cvs/drupal/drupal/modules/system/system.install,v
retrieving revision 1.272
diff -u -p -r1.272 system.install
--- modules/system/system.install	13 Oct 2008 20:29:42 -0000	1.272
+++ modules/system/system.install	26 Oct 2008 13:48:30 -0000
@@ -3072,6 +3072,16 @@ function system_update_7011() {
 }
 
 /**
+ * Replace unique key 'sid_type' by indexes in 'search_dataset' table.
+ */
+function system_update_7012() {
+  $ret = array();
+  db_drop_unique_key($ret, 'search_dataset', 'sid_type');
+  db_add_index($ret, 'search_dataset', 'sid_type', array('sid', 'type'));
+  return $ret;
+}
+
+/**
  * @} End of "defgroup updates-6.x-to-7.x"
  * The next series of updates should start at 8000.
  */