Add missing indices for ON DELETE CASCADE constraints (#8332)

Fix #8327

1 files changed, 16 insertions, 0 deletions

diff --git a/db/migrate/20180820232245_add_foreign_key_indices.rb b/db/migrate/20180820232245_add_foreign_key_indices.rb
new file mode 100644
index 000000000..e346c1f5b
--- /dev/null
+++ b/db/migrate/20180820232245_add_foreign_key_indices.rb
@@ -0,0 +1,16 @@
+# frozen_string_literal: true
+
+class AddForeignKeyIndices < ActiveRecord::Migration[5.2]
+  disable_ddl_transaction!
+
+  def change
+    add_index :follows, :target_account_id, algorithm: :concurrently
+    add_index :blocks, :target_account_id, algorithm: :concurrently
+    add_index :mutes, :target_account_id, algorithm: :concurrently
+    add_index :notifications, :from_account_id, algorithm: :concurrently
+    add_index :accounts, :moved_to_account_id, algorithm: :concurrently
+    add_index :statuses, :in_reply_to_account_id, algorithm: :concurrently
+    add_index :session_activations, :access_token_id, algorithm: :concurrently
+    add_index :oauth_access_grants, :resource_owner_id, algorithm: :concurrently
+  end
+end