Validate NOT NULL constraint on gitlab_subscriptions namespace_id

changelogs/unreleased/321662-validate_not_null_constraint_on_gitlab_subscriptions_namespace_id.yml

+---
+title: Validate NOT NULL constraint on gitlab_subscriptions namespace_id
+merge_request: 57113
+author:
+type: other

db/post_migrate/20210322115438_validate_not_null_constraint_on_gitlab_subscriptions_namespace_id.rb

+# frozen_string_literal: true
+
+class ValidateNotNullConstraintOnGitlabSubscriptionsNamespaceId < ActiveRecord::Migration[6.0]
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+
+  disable_ddl_transaction!
+
+  def up
+    validate_not_null_constraint :gitlab_subscriptions, :namespace_id
+  end
+
+  def down
+    # no-op
+  end
+end

db/schema_migrations/20210322115438

+e177c2cc0b59eea54de10417445b391cea7dd308547077aea34054fac22b9e40
\ No newline at end of file

db/structure.sql

@@ -13147,7 +13147,8 @@ CREATE TABLE gitlab_subscriptions (
     auto_renew boolean,
     seats_in_use integer DEFAULT 0 NOT NULL,
     seats_owed integer DEFAULT 0 NOT NULL,
-    trial_extension_type smallint
+    trial_extension_type smallint,
+    CONSTRAINT check_77fea3f0e7 CHECK ((namespace_id IS NOT NULL))
 );
 
 CREATE SEQUENCE gitlab_subscriptions_id_seq
@@ -20238,9 +20239,6 @@ ALTER TABLE ONLY chat_teams
 ALTER TABLE vulnerability_scanners
     ADD CONSTRAINT check_37608c9db5 CHECK ((char_length(vendor) <= 255)) NOT VALID;
 
-ALTER TABLE gitlab_subscriptions
-    ADD CONSTRAINT check_77fea3f0e7 CHECK ((namespace_id IS NOT NULL)) NOT VALID;
-
 ALTER TABLE sprints
     ADD CONSTRAINT check_ccd8a1eae0 CHECK ((start_date IS NOT NULL)) NOT VALID;