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Add new vpl_num_allocated_pages member to VPageListData.

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It will keep track the number of pages allocated so that
vacuum could allocate twice of the previous allocation.
This will greatly reduce the total memory consumption of
vacuum.
This commit is contained in:
Tatsuo Ishii 1999-08-25 12:18:31 +00:00
parent 2b67dc5387
commit 770d0786c2
1 changed files with 2 additions and 1 deletions
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3
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 1.23 1999/08/01 04:54:25 tgl Exp $
* $Id: vacuum.h,v 1.24 1999/08/25 12:18:31 ishii Exp $
*
*-------------------------------------------------------------------------
*/
@ -46,6 +46,7 @@ typedef struct VPageListData
{
int vpl_empty_end_pages; /* Number of "empty" end-pages */
int vpl_num_pages; /* Number of pages in vpl_pagedesc */
int vpl_num_allocated_pages; /* Number of allocated pages in vpl_pagedesc */
VPageDescr *vpl_pagedesc; /* Descriptions of pages */
} VPageListData;