diff --git a/db/docs/project_relation_exports.yml b/db/docs/project_relation_exports.yml
index f25fe8280ae6119e2c6a4f62cdcdabc1903124cf..5d3cf0d29e58a164fb56151103064c0e04a68396 100644
--- a/db/docs/project_relation_exports.yml
+++ b/db/docs/project_relation_exports.yml
@@ -7,4 +7,19 @@ feature_categories:
 description: Used to track the generation of relation export files for projects
 introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/90624
 milestone: '15.2'
-gitlab_schema: gitlab_main
+gitlab_schema: gitlab_main_cell
+allow_cross_joins:
+- gitlab_main_clusterwide
+allow_cross_transactions:
+- gitlab_main_clusterwide
+allow_cross_foreign_keys:
+- gitlab_main_clusterwide
+desired_sharding_key:
+  project_id:
+    references: projects
+    backfill_via:
+      parent:
+        foreign_key: project_export_job_id
+        table: project_export_jobs
+        sharding_key: project_id
+        belongs_to: project_export_job