Fix use of wrong datatype with sizeof().

OID and int are the same size, but they are not the same thing.

David Rowley

Discussion: http://postgr.es/m/CAKJS1f_MhS++XngkTvWL9X1v8M5t-0N0B-R465yHQY=TmNV0Ew@mail.gmail.com

src/backend/nodes/copyfuncs.c

@@ -1204,7 +1204,7 @@ _copyPartitionedRelPruneInfo(const PartitionedRelPruneInfo *from)
 	COPY_SCALAR_FIELD(nexprs);
 	COPY_POINTER_FIELD(subplan_map, from->nparts * sizeof(int));
 	COPY_POINTER_FIELD(subpart_map, from->nparts * sizeof(int));
-	COPY_POINTER_FIELD(relid_map, from->nparts * sizeof(int));
+	COPY_POINTER_FIELD(relid_map, from->nparts * sizeof(Oid));
 	COPY_POINTER_FIELD(hasexecparam, from->nexprs * sizeof(bool));
 	COPY_SCALAR_FIELD(do_initial_prune);
 	COPY_SCALAR_FIELD(do_exec_prune);

src/backend/partitioning/partprune.c

@@ -475,7 +475,7 @@ make_partitionedrel_pruneinfo(PlannerInfo *root, RelOptInfo *parentrel,
 		 */
 		subplan_map = (int *) palloc(nparts * sizeof(int));
 		subpart_map = (int *) palloc(nparts * sizeof(int));
-		relid_map = (Oid *) palloc(nparts * sizeof(int));
+		relid_map = (Oid *) palloc(nparts * sizeof(Oid));
 		present_parts = NULL;
 
 		for (i = 0; i < nparts; i++)