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 59a7fe4a5063e4e82e7a0ee8c854b4f4238b5cc1..860491797150514732aa4a3142f661f85b9d32ae 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 1.23 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;