? sites/default/files
? sites/default/settings.php
Index: includes/database/mysql/schema.inc
===================================================================
RCS file: /cvs/drupal/drupal/includes/database/mysql/schema.inc,v
retrieving revision 1.1
diff -u -p -r1.1 schema.inc
--- includes/database/mysql/schema.inc	21 Aug 2008 19:36:36 -0000	1.1
+++ includes/database/mysql/schema.inc	27 Aug 2008 21:11:36 -0000
@@ -73,6 +73,12 @@ class DatabaseSchema_mysql extends Datab
   protected function createFieldSql($name, $spec) {
     $sql = "`" . $name . "` " . $spec['mysql_type'];
   
+    // BLOB and TEXT columns cannot have DEFAULT values.
+    // Refer to http://dev.mysql.com/doc/refman/5.1/en/blob.html
+    if (($spec['type'] == 'text') || ($spec['type'] == 'blob')) {
+      unset($spec['default']);
+    }
+    
     if (isset($spec['length'])) {
       $sql .= '(' . $spec['length'] . ')';
     }
Index: modules/node/node.install
===================================================================
RCS file: /cvs/drupal/drupal/modules/node/node.install,v
retrieving revision 1.6
diff -u -p -r1.6 node.install
--- modules/node/node.install	15 Apr 2008 08:39:03 -0000	1.6
+++ modules/node/node.install	27 Aug 2008 21:11:36 -0000
@@ -241,14 +241,16 @@ function node_schema() {
       ),
       'body' => array(
         'description' => t('The body of this version.'),
-        'type' => 'text',
+        'type' => 'blob',
         'not null' => TRUE,
+        'default' => '',
         'size' => 'big',
       ),
       'teaser' => array(
         'description' => t('The teaser of this version.'),
-        'type' => 'text',
+        'type' => 'blob',
         'not null' => TRUE,
+        'default' => '',
         'size' => 'big',
       ),
       'log' => array(
Index: modules/system/system.install
===================================================================
RCS file: /cvs/drupal/drupal/modules/system/system.install,v
retrieving revision 1.261
diff -u -p -r1.261 system.install
--- modules/system/system.install	23 Aug 2008 08:15:37 -0000	1.261
+++ modules/system/system.install	27 Aug 2008 21:11:37 -0000
@@ -3051,6 +3051,17 @@ function system_update_7010() {
 }
 
 /**
+ * Remap {node_revisions}.body and {node_revisions}.teaser as BLOB type.
+ */
+function system_update_7011() {
+  $ret = array();
+  db_change_field($ret, 'node_revisions', 'body', 'body', array('type' => 'blob', 'not null' => TRUE, 'default' => '', 'size' => 'big'));
+  db_change_field($ret, 'node_revisions', 'teaser', 'teaser', array('type' => 'blob', 'not null' => TRUE, 'default' => '', 'size' => 'big'));
+
+  return $ret;
+}
+
+/**
  * @} End of "defgroup updates-6.x-to-7.x"
  * The next series of updates should start at 8000.
  */