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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2001-08-25 18:52:43 +0000 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2001-08-25 18:52:43 +0000 |
| commit | 2589735da08c4e597accb6eab5ae65b6339ee630 (patch) | |
| tree | 829f7073292c6b55f86580863837441991638405 /src/backend/access/transam/rmgr.c | |
| parent | 4699d81dc99ef1687e9396b57b0ed10f42699792 (diff) | |
| download | postgresql-2589735da08c4e597accb6eab5ae65b6339ee630.tar.gz postgresql-2589735da08c4e597accb6eab5ae65b6339ee630.zip | |
Replace implementation of pg_log as a relation accessed through the
buffer manager with 'pg_clog', a specialized access method modeled
on pg_xlog. This simplifies startup (don't need to play games to
open pg_log; among other things, OverrideTransactionSystem goes away),
should improve performance a little, and opens the door to recycling
commit log space by removing no-longer-needed segments of the commit
log. Actual recycling is not there yet, but I felt I should commit
this part separately since it'd still be useful if we chose not to
do transaction ID wraparound.
Diffstat (limited to 'src/backend/access/transam/rmgr.c')
| -rw-r--r-- | src/backend/access/transam/rmgr.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/src/backend/access/transam/rmgr.c b/src/backend/access/transam/rmgr.c index 625b0db3202..b9af3a06c97 100644 --- a/src/backend/access/transam/rmgr.c +++ b/src/backend/access/transam/rmgr.c @@ -1,4 +1,13 @@ +/* + * rmgr.c + * + * Resource managers definition + * + * $Header: /cvsroot/pgsql/src/backend/access/transam/rmgr.c,v 1.9 2001/08/25 18:52:41 tgl Exp $ + */ #include "postgres.h" + +#include "access/clog.h" #include "access/gist.h" #include "access/hash.h" #include "access/heapam.h" @@ -9,11 +18,12 @@ #include "storage/smgr.h" #include "commands/sequence.h" + RmgrData RmgrTable[] = { {"XLOG", xlog_redo, xlog_undo, xlog_desc}, {"Transaction", xact_redo, xact_undo, xact_desc}, {"Storage", smgr_redo, smgr_undo, smgr_desc}, - {"Reserved 3", NULL, NULL, NULL}, + {"CLOG", clog_redo, clog_undo, clog_desc}, {"Reserved 4", NULL, NULL, NULL}, {"Reserved 5", NULL, NULL, NULL}, {"Reserved 6", NULL, NULL, NULL}, |