1 files changed, 30 insertions, 0 deletions
diff --git a/db/migrate/20210128152830_create_ci_namespace_monthly_usage.rb b/db/migrate/20210128152830_create_ci_namespace_monthly_usage.rb
new file mode 100644
index 00000000000..d6ee057a56b
--- /dev/null
+++ b/db/migrate/20210128152830_create_ci_namespace_monthly_usage.rb
@@ -0,0 +1,30 @@
+# frozen_string_literal: true
+
+class CreateCiNamespaceMonthlyUsage < ActiveRecord::Migration[6.0]
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+
+  disable_ddl_transaction!
+
+  def up
+    with_lock_retries do
+      create_table :ci_namespace_monthly_usages, if_not_exists: true do |t|
+        t.references :namespace, index: false, null: false
+        t.date :date, null: false
+        t.integer :additional_amount_available, null: false, default: 0
+        t.decimal :amount_used, null: false, default: 0.0, precision: 18, scale: 2
+
+        t.index [:namespace_id, :date], unique: true
+      end
+    end
+
+    add_check_constraint :ci_namespace_monthly_usages, "(date = date_trunc('month', date))", 'ci_namespace_monthly_usages_year_month_constraint'
+  end
+
+  def down
+    with_lock_retries do
+      drop_table :ci_namespace_monthly_usages
+    end
+  end
+end