Initialize replication_slot_catalog_xmin in procarray

petere · petere · commit 4d4c89171598 · 2017-08-15T21:05:21.000-04:00
Although not confirmed and probably rare, if the newly allocated memory
is not already zero, this could possibly have caused some problems.

Also reorder the initializations slightly so they match the order of the
struct definition.

Author: Wong, Yi Wen &lt;yiwong@amazon.com&gt;
Reviewed-by: Masahiko Sawada &lt;sawada.mshk@gmail.com&gt;
diff --git a/src/backend/storage/ipc/procarray.c b/src/backend/storage/ipc/procarray.c
@@ -237,13 +237,14 @@ CreateSharedProcArray(void)
 		 */
 		procArray->numProcs = 0;
 		procArray->maxProcs = PROCARRAY_MAXPROCS;
-		procArray->replication_slot_xmin = InvalidTransactionId;
 		procArray->maxKnownAssignedXids = TOTAL_MAX_CACHED_SUBXIDS;
 		procArray->numKnownAssignedXids = 0;
 		procArray->tailKnownAssignedXids = 0;
 		procArray->headKnownAssignedXids = 0;
 		SpinLockInit(&procArray->known_assigned_xids_lck);
 		procArray->lastOverflowedXid = InvalidTransactionId;
+		procArray->replication_slot_xmin = InvalidTransactionId;
+		procArray->replication_slot_catalog_xmin = InvalidTransactionId;
 	}
 
 	allProcs = ProcGlobal->allProcs;
