1 files changed, 15 insertions, 0 deletions
diff --git a/src/backend/catalog/dependency.c b/src/backend/catalog/dependency.c
index 096b68c7f39..18316a3968b 100644
--- a/src/backend/catalog/dependency.c
+++ b/src/backend/catalog/dependency.c
@@ -2191,7 +2191,22 @@ find_expr_references_walker(Node *node,
 					}
 					context->rtables = list_delete_first(context->rtables);
 					break;
+				case RTE_NAMEDTUPLESTORE:
+
+					/*
+					 * Cataloged objects cannot depend on tuplestores, because
+					 * those have no cataloged representation.  For now we can
+					 * call the tuplestore a "transition table" because that's
+					 * the only kind exposed to SQL, but someday we might have
+					 * to work harder.
+					 */
+					ereport(ERROR,
+							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+							 errmsg("transition table \"%s\" cannot be referenced in a persistent object",
+									rte->eref->aliasname)));
+					break;
 				default:
+					/* Other RTE types can be ignored here */
 					break;
 			}
 		}