Anonymous avatar Anonymous committed ae9aba6

Keep rd_newRelfilenodeSubid across overflow.
Teach RelationCacheInvalidate() to keep rd_newRelfilenodeSubid across rel cache
message overflows, so that behaviour is now fully deterministic.

Noah Misch

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Files changed (1)


 		/* Must close all smgr references to avoid leaving dangling ptrs */
-		/* Ignore new relations, since they are never cross-backend targets */
-		if (relation->rd_createSubid != InvalidSubTransactionId)
+		/*
+		 * 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)
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