diff --git a/src/backend/utils/sort/tuplesort.c b/src/backend/utils/sort/tuplesort.c
new file mode 100644
index 8969818..f7d6bf9
*** a/src/backend/utils/sort/tuplesort.c
--- b/src/backend/utils/sort/tuplesort.c
*************** tuplesort_get_stats(Tuplesortstate *stat
*** 2376,2382 ****
  	switch (state->status)
  	{
  		case TSS_SORTEDINMEM:
! 			if (state->boundUsed)
  				*sortMethod = "top-N heapsort";
  			else
  				*sortMethod = "quicksort";
--- 2376,2384 ----
  	switch (state->status)
  	{
  		case TSS_SORTEDINMEM:
! 			if (state->memtupcount <= 1)
! 				*sortMethod = "skipped";
! 			else if (state->boundUsed)
  				*sortMethod = "top-N heapsort";
  			else
  				*sortMethod = "quicksort";