1 files changed, 24 insertions, 0 deletions
diff --git a/db/migrate/20201027101010_create_user_follow_users.rb b/db/migrate/20201027101010_create_user_follow_users.rb
new file mode 100644
index 00000000000..7c1f831f3b2
--- /dev/null
+++ b/db/migrate/20201027101010_create_user_follow_users.rb
@@ -0,0 +1,24 @@
+# frozen_string_literal: true
+
+class CreateUserFollowUsers < ActiveRecord::Migration[6.0]
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+
+  def up
+    with_lock_retries do
+      execute <<~SQL
+        CREATE TABLE user_follow_users (
+          follower_id integer not null references users (id) on delete cascade,
+          followee_id integer not null references users (id) on delete cascade,
+          PRIMARY KEY (follower_id, followee_id)
+        );
+        CREATE INDEX ON user_follow_users (followee_id);
+      SQL
+    end
+  end
+
+  def down
+    drop_table :user_follow_users
+  end
+end