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Omit the check for cell-pointer consistency in sqlite3BtreeInitPage()

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for a 2.5% performance gain. (CVS 5433)

FossilOrigin-Name: b88087e69dffb743c5b552703e14a030349cf65b
This commit is contained in:
drh
2008-07-18 02:44:17 +00:00
parent 79df1f4a37
commit 1688c86f5a
4 changed files with 35 additions and 21 deletions
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3
src/btreeInt.h
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@@ -9,7 +9,7 @@
** May you share freely, never taking more than you give.
**
*************************************************************************
** $Id: btreeInt.h,v 1.27 2008/07/17 18:39:58 drh Exp $
** $Id: btreeInt.h,v 1.28 2008/07/18 02:44:18 drh Exp $
**
** This file implements a external (disk-based) database using BTrees.
** For a detailed discussion of BTrees, refer to
@@ -284,6 +284,7 @@ struct MemPage {
u16 idxParent; /* Index in parent of this node */
u16 nFree; /* Number of free bytes on the page */
u16 nCell; /* Number of cells on this page, local and ovfl */
u16 maskPage; /* Mask for page offset */
struct _OvflCell { /* Cells that will not fit on aData[] */
u8 *pCell; /* Pointers to the body of the overflow cell */
u16 idx; /* Insert this cell before idx-th non-overflow cell */