Add new vpl_num_allocated_pages member to VPageListData.

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.

diff --git a/src/include/commands/vacuum.h b/src/include/commands/vacuum.h
index f946188567080a371de222737146df4196edfc83..33b0ba87e7405e5f7cc1f0d9ebb581b1ec9272f2 100644 (file)
--- a/src/include/commands/vacuum.h
+++ b/src/include/commands/vacuum.h
@@ -6,7 +6,7 @@
  *
  * Copyright (c) 1994, Regents of the University of California
  *
- * $Id: vacuum.h,v 1.20 1999/05/25 22:42:43 momjian Exp $
+ * $Id: vacuum.h,v 1.20.2.1 1999/08/25 11:32:52 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;