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| author | Michael Paquier <michael@paquier.xyz> | 2025-03-27 10:20:51 +0900 |
|---|---|---|
| committer | Michael Paquier <michael@paquier.xyz> | 2025-03-27 10:20:51 +0900 |
| commit | e5cf186277f917c3743f34931b151c22555456d9 (patch) | |
| tree | 4483cc7559846bae8af1d375e008bf4f1b32244d /src | |
| parent | 0f60e1fba13748811f266c0564e1b3fe834299c0 (diff) | |
| download | postgresql-e5cf186277f917c3743f34931b151c22555456d9.tar.gz postgresql-e5cf186277f917c3743f34931b151c22555456d9.zip | |
doc: Correct description of values used in FSM for indexes
The implementation of FSM for indexes is simpler than heap, where 0 is
used to track if a page is in-use and (BLCKSZ - 1) if a page is free.
One comment in indexfsm.c and one description in the documentation of
pg_freespacemap were incorrect about that.
Author: Alex Friedman <alexf01@gmail.com>
Discussion: https://postgr.es/m/71eef655-c192-453f-ac45-2772fec2cb04@gmail.com
Backpatch-through: 13
Diffstat (limited to 'src')
| -rw-r--r-- | src/backend/storage/freespace/indexfsm.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/backend/storage/freespace/indexfsm.c b/src/backend/storage/freespace/indexfsm.c index d975c3364b4..4788e7e7183 100644 --- a/src/backend/storage/freespace/indexfsm.c +++ b/src/backend/storage/freespace/indexfsm.c @@ -16,7 +16,7 @@ * This is similar to the FSM used for heap, in freespace.c, but instead * of tracking the amount of free space on pages, we only track whether * pages are completely free or in-use. We use the same FSM implementation - * as for heaps, using BLCKSZ - 1 to denote used pages, and 0 for unused. + * as for heaps, using 0 to denote used pages, and (BLCKSZ - 1) for unused. * *------------------------------------------------------------------------- */ |