Re: [PERFORM] A Better External Sort?

I see the following routines that seem to be related to sorting.

If I were to examine these routines to consider ways to improve it, what
routines should I key in on? I am guessing that tuplesort.c is the hub
of activity for database sorting.

Directory of U:\postgresql-snapshot\src\backend\access\nbtree

08/11/2005 06:22 AM 24,968 nbtsort.c
1 File(s) 24,968 bytes

Directory of U:\postgresql-snapshot\src\backend\executor

03/16/2005 01:38 PM 7,418 nodeSort.c
1 File(s) 7,418 bytes

Directory of U:\postgresql-snapshot\src\backend\utils\sort

09/23/2005 08:36 AM 67,585 tuplesort.c
1 File(s) 67,585 bytes

Directory of U:\postgresql-snapshot\src\bin\pg_dump

06/29/2005 08:03 PM 31,620 pg_dump_sort.c
1 File(s) 31,620 bytes

Directory of U:\postgresql-snapshot\src\port

07/27/2005 09:03 PM 5,077 qsort.c
1 File(s) 5,077 bytes