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Commit770d078

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Add new vpl_num_allocated_pages member to VPageListData.
It will keep track the number of pages allocated so thatvacuum could allocate twice of the previous allocation.This will greatly reduce the total memory consumption ofvacuum.
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‎src/include/commands/vacuum.h

Lines changed: 2 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -6,7 +6,7 @@
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*
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* Copyright (c) 1994, Regents of the University of California
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*
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* $Id: vacuum.h,v 1.23 1999/08/01 04:54:25 tgl Exp $
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* $Id: vacuum.h,v 1.24 1999/08/25 12:18:31 ishii Exp $
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*
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*-------------------------------------------------------------------------
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*/
@@ -46,6 +46,7 @@ typedef struct VPageListData
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{
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intvpl_empty_end_pages;/* Number of "empty" end-pages */
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intvpl_num_pages;/* Number of pages in vpl_pagedesc */
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intvpl_num_allocated_pages;/* Number of allocated pages in vpl_pagedesc */
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VPageDescr*vpl_pagedesc;/* Descriptions of pages */
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}VPageListData;
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