*** a/src/backend/utils/cache/relcache.c
--- b/src/backend/utils/cache/relcache.c
***************
*** 2149,2156 **** RelationCacheInvalidate(void)
  		/* Must close all smgr references to avoid leaving dangling ptrs */
  		RelationCloseSmgr(relation);
  
! 		/* Ignore new relations, since they are never cross-backend targets */
! 		if (relation->rd_createSubid != InvalidSubTransactionId)
  			continue;
  
  		relcacheInvalsReceived++;
--- 2149,2162 ----
  		/* Must close all smgr references to avoid leaving dangling ptrs */
  		RelationCloseSmgr(relation);
  
! 		/*
! 		 * Ignore new relations; no other backend will manipulate them before
! 		 * we commit.  Likewise, before replacing a relation's relfilenode, we
! 		 * shall have acquired AccessExclusiveLock and drained any applicable
! 		 * pending invalidations.
! 		 */
! 		if (relation->rd_createSubid != InvalidSubTransactionId ||
! 			relation->rd_newRelfilenodeSubid != InvalidSubTransactionId)
  			continue;
  
  		relcacheInvalsReceived++;