add index for pending delayed_messages

Change-Id: Idef832087d9194eae9c782d5f67bd76a66629703 Reviewed-on: https://gerrit.instructure.com/c/canvas-lms/+/230983 Tested-by: Service Cloud Jenkins <[email protected]> Reviewed-by: Simon Williams <[email protected]> Reviewed-by: Jeremy Stanley <[email protected]> Reviewed-by: Cody Cutrer <[email protected]> QA-Review: Cody Cutrer <[email protected]> Product-Review: Cody Cutrer <[email protected]>
rthbound · Mar 23, 2020 · 127e5bc · 127e5bc
1 parent be33585
commit 127e5bc
Showing 1 changed file with 9 additions and 0 deletions.
diff --git a/db/migrate/20200323153455_add_pending_delayed_messages_index.rb b/db/migrate/20200323153455_add_pending_delayed_messages_index.rb
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+class AddPendingDelayedMessagesIndex < ActiveRecord::Migration[5.2]
+  tag :postdeploy
+  disable_ddl_transaction!
+
+  def change
+    add_index :delayed_messages, [:send_at], where: "workflow_state = 'pending'",
+      name: "index_delayed_messages_pending", algorithm: :concurrently
+  end
+end