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Change the pager locking mechanism so that we don't have to write page 1

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to the journal and to the database unless it actually changes. (CVS 419)

FossilOrigin-Name: 480eef1a3a4f049bc0d0cbee32dc8a8d138597c6
This commit is contained in:
drh
2002-03-05 12:41:19 +00:00
parent 603240cf5d
commit 4b845d7ef4
6 changed files with 155 additions and 105 deletions
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4
src/btree.c
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@@ -9,7 +9,7 @@
** May you share freely, never taking more than you give.
**
*************************************************************************
** $Id: btree.c,v 1.58 2002/03/03 23:06:01 drh Exp $
** $Id: btree.c,v 1.59 2002/03/05 12:41:20 drh Exp $
**
** This file implements a external (disk-based) database using BTrees.
** For a detailed discussion of BTrees, refer to
@@ -762,7 +762,7 @@ int sqliteBtreeBeginTrans(Btree *pBt){
if( sqlitepager_isreadonly(pBt->pPager) ){
return SQLITE_READONLY;
}
rc = sqlitepager_write(pBt->page1);
rc = sqlitepager_begin(pBt->page1);
if( rc==SQLITE_OK ){
rc = newDatabase(pBt);
}