1 files changed, 28 insertions, 0 deletions
diff --git a/db/post_migrate/20220706145113_backfill_namespace_id_on_issues.rb b/db/post_migrate/20220706145113_backfill_namespace_id_on_issues.rb
new file mode 100644
index 00000000000..8114967ac8e
--- /dev/null
+++ b/db/post_migrate/20220706145113_backfill_namespace_id_on_issues.rb
@@ -0,0 +1,28 @@
+# frozen_string_literal: true
+
+class BackfillNamespaceIdOnIssues < Gitlab::Database::Migration[2.0]
+  restrict_gitlab_migration gitlab_schema: :gitlab_main
+  disable_ddl_transaction!
+
+  MIGRATION = 'BackfillProjectNamespaceOnIssues'
+  DELAY_INTERVAL = 2.minutes
+  BATCH_SIZE = 500
+  MAX_BATCH_SIZE = 10_000
+  SUB_BATCH_SIZE = 10
+
+  def up
+    queue_batched_background_migration(
+      MIGRATION,
+      :issues,
+      :id,
+      job_interval: DELAY_INTERVAL,
+      batch_size: BATCH_SIZE,
+      max_batch_size: MAX_BATCH_SIZE,
+      sub_batch_size: SUB_BATCH_SIZE
+    )
+  end
+
+  def down
+    delete_batched_background_migration(MIGRATION, :issues, :id, [])
+  end
+end