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Code Activity

1. Vacuum is updated for MVCC.

Browse Source 
2. Much faster btree tuples deletion in the case when first on page
   index tuple is deleted (no movement to the left page(s)).
3. Remember blkno of new root page in BTPageOpaque of
   left/right siblings when root page is splitted.
This commit is contained in:
Vadim B. Mikheev
1999-03-28 20:32:42 +00:00
parent d4ed17842a
commit fdf6be80f9
16 changed files with 802 additions and 352 deletions
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37
src/include/commands/vacuum.h
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@@ -6,7 +6,7 @@
*
* Copyright (c) 1994, Regents of the University of California
*
* $Id: vacuum.h,v 1.17 1999/02/13 23:21:20 momjian Exp $
* $Id: vacuum.h,v 1.18 1999/03/28 20:32:38 vadim Exp $
*
*-------------------------------------------------------------------------
*/
@@ -95,16 +95,35 @@ typedef struct VRelListData
typedef VRelListData *VRelList;
typedef struct VTupleLinkData
{
ItemPointerData new_tid;
ItemPointerData this_tid;
} VTupleLinkData;
typedef VTupleLinkData *VTupleLink;
typedef struct VTupleMoveData
{
ItemPointerData tid; /* tuple ID */
VPageDescr vpd; /* where to move */
bool cleanVpd; /* clean vpd before using */
} VTupleMoveData;
typedef VTupleMoveData *VTupleMove;
typedef struct VRelStats
{
Oid relid;
int num_tuples;
int num_pages;
Size min_tlen;
Size max_tlen;
bool hasindex;
int va_natts; /* number of attrs being analyzed */
VacAttrStats *vacattrstats;
Oid relid;
int num_tuples;
int num_pages;
Size min_tlen;
Size max_tlen;
bool hasindex;
int va_natts; /* number of attrs being analyzed */
VacAttrStats *vacattrstats;
int num_vtlinks;
VTupleLink vtlinks;
} VRelStats;
extern bool VacuumRunning;