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authoralpaca-tc <alpaca-tc@alpaca.tc>2017-05-08 02:00:20 +0900
committerEugen Rochko <eugen@zeonfederated.com>2017-05-07 19:00:20 +0200
commitd3704fdb09d79279c8dfde591087aa723af29891 (patch)
tree699f9f3296e8aee1778da69ace3ac1bc570ba1c9 /db/migrate
parentca05bfaac7894285bf9ebbfeebe8c379b94eeb42 (diff)
Add effective index to subscriptions (#2885)
Diffstat (limited to 'db/migrate')
-rw-r--r--db/migrate/20170507141759_optimize_index_subscriptions.rb11
1 files changed, 11 insertions, 0 deletions
diff --git a/db/migrate/20170507141759_optimize_index_subscriptions.rb b/db/migrate/20170507141759_optimize_index_subscriptions.rb
new file mode 100644
index 000000000..26acd5c4d
--- /dev/null
+++ b/db/migrate/20170507141759_optimize_index_subscriptions.rb
@@ -0,0 +1,11 @@
+class OptimizeIndexSubscriptions < ActiveRecord::Migration[5.0]
+  def up
+    add_index :subscriptions, [:account_id, :callback_url], unique: true
+    remove_index :subscriptions, [:callback_url, :account_id]
+  end
+
+  def down
+    add_index :subscriptions, [:callback_url, :account_id], unique: true
+    remove_index :subscriptions, [:account_id, :callback_url]
+  end
+end