? sites/default/modules
? sites/default/settings.php
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	30 Oct 2008 13:20:31 -0000
@@ -536,7 +536,7 @@ function system_schema() {
       ),
       'batch' => array(
         'description' => t('A serialized array containing the processing data for the batch.'),
-        'type' => 'text',
+        'type' => 'blob',
         'not null' => FALSE,
         'size' => 'big',
       ),
@@ -3072,7 +3072,15 @@ function system_update_7011() {
 }
 
 /**
+ * Remap {batch}.batch as BLOB type.
+ */
+function system_update_7012() {
+  $ret = array();
+  db_change_field($ret, 'batch', 'batch', 'batch', array('type' => 'blob', 'not null' => FALSE, 'size' => 'big'));
+  return $ret;
+}
+
+/**
  * @} End of "defgroup updates-6.x-to-7.x"
  * The next series of updates should start at 8000.
  */
-