1 files changed, 0 insertions, 38 deletions
diff --git a/lib/gitlab/background_migration/backfill_namespace_id_for_namespace_route.rb b/lib/gitlab/background_migration/backfill_namespace_id_for_namespace_route.rb
deleted file mode 100644
index 0585924cb7b..00000000000
--- a/lib/gitlab/background_migration/backfill_namespace_id_for_namespace_route.rb
+++ /dev/null
@@ -1,38 +0,0 @@
-# frozen_string_literal: true
-
-module Gitlab
-  module BackgroundMigration
-    # Backfills the `routes.namespace_id` column, by copying source_id value
-    # (for groups and user namespaces source_id == namespace_id)
-    class BackfillNamespaceIdForNamespaceRoute
-      include Gitlab::Database::DynamicModelHelpers
-
-      def perform(start_id, end_id, batch_table, batch_column, sub_batch_size, pause_ms)
-        parent_batch_relation = relation_scoped_to_range(batch_table, batch_column, start_id, end_id)
-
-        parent_batch_relation.each_batch(column: batch_column, of: sub_batch_size) do |sub_batch|
-          batch_metrics.time_operation(:update_all) do
-            sub_batch.update_all('namespace_id=source_id')
-          end
-
-          pause_ms = [0, pause_ms].max
-          sleep(pause_ms * 0.001)
-        end
-      end
-
-      def batch_metrics
-        @batch_metrics ||= Gitlab::Database::BackgroundMigration::BatchMetrics.new
-      end
-
-      private
-
-      def relation_scoped_to_range(source_table, source_key_column, start_id, stop_id)
-        define_batchable_model(source_table, connection: ApplicationRecord.connection)
-          .joins('inner join namespaces on routes.source_id = namespaces.id')
-          .where(source_key_column => start_id..stop_id)
-          .where(namespace_id: nil)
-          .where(source_type: 'Namespace')
-      end
-    end
-  end
-end