1 files changed, 19 insertions, 0 deletions
diff --git a/db/migrate/20220516054002_temp_index_for_project_namespace_member_backfill.rb b/db/migrate/20220516054002_temp_index_for_project_namespace_member_backfill.rb
new file mode 100644
index 00000000000..a9dc14d7521
--- /dev/null
+++ b/db/migrate/20220516054002_temp_index_for_project_namespace_member_backfill.rb
@@ -0,0 +1,19 @@
+# frozen_string_literal: true
+
+class TempIndexForProjectNamespaceMemberBackfill < Gitlab::Database::Migration[1.0]
+  INDEX_NAME = 'tmp_index_for_namespace_id_migration_on_project_members'
+
+  disable_ddl_transaction!
+
+  def up
+    # Temporary index to be removed in future
+    # https://gitlab.com/gitlab-org/gitlab/-/issues/356509
+    add_concurrent_index :members, :id,
+      where: "members.member_namespace_id IS NULL and members.type = 'ProjectMember'",
+      name: INDEX_NAME
+  end
+
+  def down
+    remove_concurrent_index_by_name :members, INDEX_NAME
+  end
+end