diff options
| 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/transam/rmgr.c | |
| parent | 2dbc0ca937f8ba9c76866a99fd04866232acea95 (diff) | |
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/transam/rmgr.c')
| -rw-r--r-- | src/backend/access/transam/rmgr.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/src/backend/access/transam/rmgr.c b/src/backend/access/transam/rmgr.c index 08de22eaa4a..7c62ec38543 100644 --- a/src/backend/access/transam/rmgr.c +++ b/src/backend/access/transam/rmgr.c @@ -3,7 +3,7 @@ * * Resource managers definition * - * $PostgreSQL: pgsql/src/backend/access/transam/rmgr.c,v 1.25 2006/11/05 22:42:07 tgl Exp $ + * $PostgreSQL: pgsql/src/backend/access/transam/rmgr.c,v 1.26 2008/09/30 10:52:11 heikki Exp $ */ #include "postgres.h" @@ -19,6 +19,7 @@ #include "commands/dbcommands.h" #include "commands/sequence.h" #include "commands/tablespace.h" +#include "storage/freespace.h" #include "storage/smgr.h" @@ -30,7 +31,7 @@ const RmgrData RmgrTable[RM_MAX_ID + 1] = { {"Database", dbase_redo, dbase_desc, NULL, NULL, NULL}, {"Tablespace", tblspc_redo, tblspc_desc, NULL, NULL, NULL}, {"MultiXact", multixact_redo, multixact_desc, NULL, NULL, NULL}, - {"Reserved 7", NULL, NULL, NULL, NULL, NULL}, + {"FreeSpaceMap", fsm_redo, fsm_desc, NULL, NULL, NULL}, {"Reserved 8", NULL, NULL, NULL, NULL, NULL}, {"Heap2", heap2_redo, heap2_desc, NULL, NULL, NULL}, {"Heap", heap_redo, heap_desc, NULL, NULL, NULL}, |