1 files changed, 20 insertions, 0 deletions
diff --git a/db/migrate/20190722144316_create_milestone_releases_table.rb b/db/migrate/20190722144316_create_milestone_releases_table.rb
new file mode 100644
index 00000000000..55878bcec41
--- /dev/null
+++ b/db/migrate/20190722144316_create_milestone_releases_table.rb
@@ -0,0 +1,20 @@
+# frozen_string_literal: true
+
+class CreateMilestoneReleasesTable < ActiveRecord::Migration[5.2]
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+
+  def up
+    create_table :milestone_releases do |t|
+      t.references :milestone, foreign_key: { on_delete: :cascade }, null: false, index: false
+      t.references :release, foreign_key: { on_delete: :cascade }, null: false
+    end
+
+    add_index :milestone_releases, [:milestone_id, :release_id], unique: true, name: 'index_miletone_releases_on_milestone_and_release'
+  end
+
+  def down
+    drop_table :milestone_releases
+  end
+end