Index: ext_tables.sql
===================================================================
--- ext_tables.sql	(revision 6890)
+++ ext_tables.sql	(working copy)
@@ -10,8 +10,8 @@
 	lastexecution_time int(11) unsigned DEFAULT '0' NOT NULL,
 	lastexecution_failure text NOT NULL,
 	lastexecution_context char(3) DEFAULT '' NOT NULL,
-	serialized_task_object blob,
-	serialized_executions blob,
+	serialized_task_object varchar(4000),
+	serialized_executions varchar(4000),
 	PRIMARY KEY (uid),
 	KEY index_nextexecution (nextexecution)
 );