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Code Issues Releases Wiki Activity

Fix vacuum's memory consumption

This commit is contained in:
Tatsuo Ishii 1999-08-25 12:20:57 +00:00
parent 770d0786c2
commit edda70c0de
1 changed files with 11 additions and 4 deletions
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15
src/backend/commands/vacuum.c
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@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/commands/vacuum.c,v 1.118 1999/08/09 03:16:47 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/commands/vacuum.c,v 1.119 1999/08/25 12:20:57 ishii Exp $
*
*-------------------------------------------------------------------------
*/
@ -2549,12 +2549,19 @@ vc_reappage(VPageList vpl, VPageDescr vpc)
static void
vc_vpinsert(VPageList vpl, VPageDescr vpnew)
{
#define PG_NPAGEDESC 1024
/* allocate a VPageDescr entry if needed */
if (vpl->vpl_num_pages == 0)
vpl->vpl_pagedesc = (VPageDescr *) palloc(100 * sizeof(VPageDescr));
else if (vpl->vpl_num_pages % 100 == 0)
vpl->vpl_pagedesc = (VPageDescr *) repalloc(vpl->vpl_pagedesc, (vpl->vpl_num_pages + 100) * sizeof(VPageDescr));
{
vpl->vpl_pagedesc = (VPageDescr *) palloc(PG_NPAGEDESC * sizeof(VPageDescr));
vpl->vpl_num_allocated_pages = PG_NPAGEDESC;
}
else if (vpl->vpl_num_pages >= vpl->vpl_num_allocated_pages)
{
vpl->vpl_num_allocated_pages *= 2;
vpl->vpl_pagedesc = (VPageDescr *) repalloc(vpl->vpl_pagedesc, vpl->vpl_num_allocated_pages * sizeof(VPageDescr));
}
vpl->vpl_pagedesc[vpl->vpl_num_pages] = vpnew;
(vpl->vpl_num_pages)++;