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authorHeikki Linnakangas2008-09-30 10:52:14 +0000
committerHeikki Linnakangas2008-09-30 10:52:14 +0000
commitb95589e22191563a0586872ad791f2dedb37fd35 (patch)
treeaa13ad9b49795efc862e4904b2e5179be7c56978 /src/backend/tcop/postgres.c
parent139a15db858015698d4e5b4929c3d042d3669544 (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/tcop/postgres.c')
-rw-r--r--src/backend/tcop/postgres.c8
1 files changed, 0 insertions, 8 deletions
diff --git a/src/backend/tcop/postgres.c b/src/backend/tcop/postgres.c
index 999be5932a..09892780ba 100644
--- a/src/backend/tcop/postgres.c
+++ b/src/backend/tcop/postgres.c
@@ -57,7 +57,6 @@
#include "postmaster/autovacuum.h"
#include "rewrite/rewriteHandler.h"
#include "storage/bufmgr.h"
-#include "storage/freespace.h"
#include "storage/ipc.h"
#include "storage/proc.h"
#include "storage/sinval.h"
@@ -3259,13 +3258,6 @@ PostgresMain(int argc, char *argv[], const char *username)
on_shmem_exit(ShutdownXLOG, 0);
/*
- * Read any existing FSM cache file, and register to write one out at
- * exit.
- */
- LoadFreeSpaceMap();
- on_shmem_exit(DumpFreeSpaceMap, 0);
-
- /*
* We have to build the flat file for pg_database, but not for the
* user and group tables, since we won't try to do authentication.
*/