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Allow VACUUM to complete faster by avoiding scanning the indexes when no

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rows were removed from the heap by the VACUUM.

Simon Riggs
This commit is contained in:
Bruce Momjian
2006-02-11 16:59:09 +00:00
parent 85d8ee846b
commit bf324946b3
7 changed files with 65 additions and 29 deletions
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19
src/backend/access/gist/gistvacuum.c
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@ -8,7 +8,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/access/gist/gistvacuum.c,v 1.11 2005/11/22 18:17:05 momjian Exp $
* $PostgreSQL: pgsql/src/backend/access/gist/gistvacuum.c,v 1.12 2006/02/11 16:59:08 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -125,7 +125,7 @@ gistVacuumUpdate(GistVacuum *gv, BlockNumber blkno, bool needunion)
if (chldtuple.ituplen > 1)
{
/*
* child was splitted, so we need mark completion
* child was split, so we need mark completion
* insert(split)
*/
int j;
@ -329,9 +329,9 @@ gistVacuumUpdate(GistVacuum *gv, BlockNumber blkno, bool needunion)
}
/*
* For usial vacuum just update FSM, for full vacuum
* For usual vacuum just update FSM, for full vacuum
* reforms parent tuples if some of childs was deleted or changed,
* update invalid tuples (they can exsist from last crash recovery only),
* update invalid tuples (they can exist from last crash recovery only),
* tries to get smaller index
*/
@ -505,10 +505,15 @@ gistbulkdelete(PG_FUNCTION_ARGS)
*ptr;
bool needLock;
stack = (GistBDItem *) palloc0(sizeof(GistBDItem));
if (callback_state)
{
stack = (GistBDItem *) palloc0(sizeof(GistBDItem));
stack->blkno = GIST_ROOT_BLKNO;
needFullVacuum = false;
stack->blkno = GIST_ROOT_BLKNO;
needFullVacuum = false;
}
else
stack = NULL;
while (stack)
{