Support checked keyed relationships across portable operations and queries

src/execution-world/kernel.ts

@@ -53,11 +53,11 @@ export function compileKernelProgram(plan: ExecutionPlan): unknown {
         });
       } else {
         const endpoints = storage.endpoints.map((endpoint) => {
-          if (endpoint.ordered || endpoint.keyType || endpoint.retainOther)
+          if (endpoint.ordered || (endpoint.keyType && endpoint.keyType !== "string") || endpoint.retainOther)
             throw new ExecutionPlanError(
               "UNSUPPORTED_GRAPH_FEATURE",
               storage.id,
-              "Ordered/keyed relations and automatic retention are not implemented",
+              "Ordered relations, non-string keys and automatic retention are not implemented",
             );
           return {
             projection: endpoint.projectionId,
@@ -69,6 +69,7 @@ export function compileKernelProgram(plan: ExecutionPlan): unknown {
                   : endpoint.constraint.interfaceRevisionId,
             },
             cardinality: endpoint.cardinality,
+            ...(endpoint.keyType ? { keyType: endpoint.keyType } : {}),
             ...(endpoint.onDelete ? { onDelete: endpoint.onDelete } : {}),
           };
         });