From 20bee937b70e04aa5afb09635b8aa85866dee588 Mon Sep 17 00:00:00 2001
From: Sam <sam.saffron@gmail.com>
Date: Mon, 2 Mar 2015 09:49:20 +1100
Subject: [PATCH] PERF: add index to make finding new topics faster

---
 db/migrate/20150301224250_create_suggested_for_index.rb | 6 ++++++
 1 file changed, 6 insertions(+)
 create mode 100644 db/migrate/20150301224250_create_suggested_for_index.rb

diff --git a/db/migrate/20150301224250_create_suggested_for_index.rb b/db/migrate/20150301224250_create_suggested_for_index.rb
new file mode 100644
index 000000000..dece35390
--- /dev/null
+++ b/db/migrate/20150301224250_create_suggested_for_index.rb
@@ -0,0 +1,6 @@
+class CreateSuggestedForIndex < ActiveRecord::Migration
+  def change
+    add_index :topics, [:created_at, :visible],
+                where: "deleted_at IS NULL AND archetype <> 'private_message'"
+  end
+end