fixes #889

db/migrate/20130318231740_change_tag_subscription_tag_query_type.rb

@@ -0,0 +1,9 @@
+class ChangeTagSubscriptionTagQueryType < ActiveRecord::Migration
+  def up
+    execute "alter table tag_subscriptions alter column tag_query type text"
+  end
+
+  def down
+    execute "alter table tag_subscriptions alter column tag_query type varchar(255)"
+  end
+end