1 files changed, 40 insertions, 0 deletions
diff --git a/db/post_migrate/20230627115305_replace_p_ci_builds_metadata_foreign_key_v4.rb b/db/post_migrate/20230627115305_replace_p_ci_builds_metadata_foreign_key_v4.rb
new file mode 100644
index 00000000000..cb5a5c96b3c
--- /dev/null
+++ b/db/post_migrate/20230627115305_replace_p_ci_builds_metadata_foreign_key_v4.rb
@@ -0,0 +1,40 @@
+# frozen_string_literal: true
+
+class ReplacePCiBuildsMetadataForeignKeyV4 < Gitlab::Database::Migration[2.1]
+  include Gitlab::Database::MigrationHelpers::WraparoundAutovacuum
+
+  disable_ddl_transaction!
+
+  def up
+    return unless should_run?
+    return if foreign_key_exists?(:p_ci_builds_metadata, :p_ci_builds, name: :temp_fk_e20479742e_p)
+
+    with_lock_retries do
+      execute(<<~SQL.squish)
+        LOCK TABLE ci_builds, p_ci_builds, p_ci_builds_metadata IN ACCESS EXCLUSIVE MODE;
+
+        ALTER TABLE p_ci_builds_metadata
+          ADD CONSTRAINT temp_fk_e20479742e_p
+          FOREIGN KEY (partition_id, build_id)
+          REFERENCES p_ci_builds (partition_id, id)
+          ON  UPDATE CASCADE ON DELETE CASCADE;
+      SQL
+    end
+  end
+
+  def down
+    return unless should_run?
+
+    with_lock_retries do
+      remove_foreign_key_if_exists :p_ci_builds_metadata, :p_ci_builds,
+        name: :temp_fk_e20479742e_p,
+        reverse_lock_order: true
+    end
+  end
+
+  private
+
+  def should_run?
+    can_execute_on?(:ci_builds_metadata, :ci_builds)
+  end
+end