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2589735da0
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.
40 lines
1.1 KiB
C
40 lines
1.1 KiB
C
/*
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* rmgr.c
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*
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* Resource managers definition
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*
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* $Header: /cvsroot/pgsql/src/backend/access/transam/rmgr.c,v 1.9 2001/08/25 18:52:41 tgl Exp $
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*/
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#include "postgres.h"
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#include "access/clog.h"
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#include "access/gist.h"
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#include "access/hash.h"
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#include "access/heapam.h"
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#include "access/nbtree.h"
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#include "access/rtree.h"
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#include "access/xact.h"
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#include "access/xlog.h"
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#include "storage/smgr.h"
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#include "commands/sequence.h"
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RmgrData RmgrTable[] = {
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{"XLOG", xlog_redo, xlog_undo, xlog_desc},
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{"Transaction", xact_redo, xact_undo, xact_desc},
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{"Storage", smgr_redo, smgr_undo, smgr_desc},
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{"CLOG", clog_redo, clog_undo, clog_desc},
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{"Reserved 4", NULL, NULL, NULL},
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{"Reserved 5", NULL, NULL, NULL},
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{"Reserved 6", NULL, NULL, NULL},
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{"Reserved 7", NULL, NULL, NULL},
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{"Reserved 8", NULL, NULL, NULL},
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{"Reserved 9", NULL, NULL, NULL},
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{"Heap", heap_redo, heap_undo, heap_desc},
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{"Btree", btree_redo, btree_undo, btree_desc},
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{"Hash", hash_redo, hash_undo, hash_desc},
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{"Rtree", rtree_redo, rtree_undo, rtree_desc},
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{"Gist", gist_redo, gist_undo, gist_desc},
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{"Sequence", seq_redo, seq_undo, seq_desc}
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};
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