Update obsolete comment.

Etsuro Fujita · Etsuro Fujita · commit 48de3bb1a50d · 2019-10-21T17:30:01.000+09:00
Commit b52b7dc, which moved code creating PartitionBoundInfo in RelationBuildPartitionDesc() in partcache.c (relocated to partdesc.c afterwards) to partbounds.c, should have updated this, but didn't. Author: Etsuro Fujita Reviewed-by: Alvaro Herrera Backpatch-through: 12 Discussion: https://postgr.es/m/CAPmGK16Uxr%3DPatiGyaRwiQVLB7Y-GqbkK3AxRLVYzU0Czv%3DsEw%40mail.gmail.com
diff --git a/src/backend/partitioning/partbounds.c b/src/backend/partitioning/partbounds.c
@@ -360,9 +360,8 @@ create_list_bounds(PartitionBoundSpec **boundspecs, int nparts,
 			else
 			{
 				/*
-				 * Never put a null into the values array, flag instead for
-				 * the code further down below where we construct the actual
-				 * relcache struct.
+				 * Never put a null into the values array; save the index of
+				 * the partition that stores nulls, instead.
 				 */
 				if (null_index != -1)
 					elog(ERROR, "found null more than once");
