fixes #942

db/migrate/20130401013601_drop_index_posts_on_created_at_date.rb

@@ -0,0 +1,11 @@
+class DropIndexPostsOnCreatedAtDate < ActiveRecord::Migration
+  def up
+    execute "set statement_timeout = 0"
+    execute "drop index index_posts_on_created_at_date"
+  end
+
+  def down
+    execute "set statement_timeout = 0"
+    execute "create index index_posts_on_created_at_date on posts(date(created_at))"
+  end
+end