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| author | Heikki Linnakangas <heikki.linnakangas@iki.fi> | 2008-09-30 10:52:14 +0000 |
|---|---|---|
| committer | Heikki Linnakangas <heikki.linnakangas@iki.fi> | 2008-09-30 10:52:14 +0000 |
| commit | 15c121b3ed7eb2f290e19533e41ccca734d23574 (patch) | |
| tree | b60226d720f87b82b5b44647e3d3031081cdfb07 /src/backend/access/nbtree/nbtpage.c | |
| parent | 2dbc0ca937f8ba9c76866a99fd04866232acea95 (diff) | |
| download | postgresql-15c121b3ed7eb2f290e19533e41ccca734d23574.tar.gz | |
Rewrite the FSM. Instead of relying on a fixed-size shared memory segment, the
free space information is stored in a dedicated FSM relation fork, with each
relation (except for hash indexes; they don't use FSM).
This eliminates the max_fsm_relations and max_fsm_pages GUC options; remove any
trace of them from the backend, initdb, and documentation.
Rewrite contrib/pg_freespacemap to match the new FSM implementation. Also
introduce a new variant of the get_raw_page(regclass, int4, int4) function in
contrib/pageinspect that let's you to return pages from any relation fork, and
a new fsm_page_contents() function to inspect the new FSM pages.
Diffstat (limited to 'src/backend/access/nbtree/nbtpage.c')
| -rw-r--r-- | src/backend/access/nbtree/nbtpage.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/src/backend/access/nbtree/nbtpage.c b/src/backend/access/nbtree/nbtpage.c index 2cc5ebe844..8ac9f538fc 100644 --- a/src/backend/access/nbtree/nbtpage.c +++ b/src/backend/access/nbtree/nbtpage.c @@ -9,7 +9,7 @@ * * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/access/nbtree/nbtpage.c,v 1.110 2008/07/13 20:45:47 tgl Exp $ + * $PostgreSQL: pgsql/src/backend/access/nbtree/nbtpage.c,v 1.111 2008/09/30 10:52:10 heikki Exp $ * * NOTES * Postgres btree pages look like ordinary relation pages. The opaque @@ -27,6 +27,7 @@ #include "miscadmin.h" #include "storage/bufmgr.h" #include "storage/freespace.h" +#include "storage/indexfsm.h" #include "storage/lmgr.h" #include "utils/inval.h" #include "utils/snapmgr.h" @@ -501,7 +502,7 @@ _bt_getbuf(Relation rel, BlockNumber blkno, int access) */ for (;;) { - blkno = GetFreeIndexPage(&rel->rd_node); + blkno = GetFreeIndexPage(rel); if (blkno == InvalidBlockNumber) break; buf = ReadBuffer(rel, blkno); |