1 files changed, 32 insertions, 0 deletions
diff --git a/db/post_migrate/20210818185845_backfill_projects_with_coverage.rb b/db/post_migrate/20210818185845_backfill_projects_with_coverage.rb
new file mode 100644
index 00000000000..003b7536767
--- /dev/null
+++ b/db/post_migrate/20210818185845_backfill_projects_with_coverage.rb
@@ -0,0 +1,32 @@
+# frozen_string_literal: true
+
+class BackfillProjectsWithCoverage < ActiveRecord::Migration[6.1]
+  include Gitlab::Database::MigrationHelpers
+
+  MIGRATION = 'BackfillProjectsWithCoverage'
+  DELAY_INTERVAL = 2.minutes
+  BATCH_SIZE = 10_000
+  SUB_BATCH_SIZE = 1_000
+
+  disable_ddl_transaction!
+
+  class CiDailyBuildGroupReportResult < ActiveRecord::Base
+    include EachBatch
+
+    self.table_name = 'ci_daily_build_group_report_results'
+  end
+
+  def up
+    queue_background_migration_jobs_by_range_at_intervals(
+      CiDailyBuildGroupReportResult,
+      MIGRATION,
+      DELAY_INTERVAL,
+      batch_size: BATCH_SIZE,
+      other_job_arguments: [SUB_BATCH_SIZE]
+    )
+  end
+
+  def down
+    # noop
+  end
+end