change cacheitem schema
diff --git a/erpnext/patches/april_2012/change_cacheitem_schema.py b/erpnext/patches/april_2012/change_cacheitem_schema.py
new file mode 100644
index 0000000..ab127e3
--- /dev/null
+++ b/erpnext/patches/april_2012/change_cacheitem_schema.py
@@ -0,0 +1,3 @@
+def execute():
+	import webnotes
+	webnotes.conn.sql("alter table __CacheItem modify `value` longtext")