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Detect and handles the case where a row is modified or deleted while it

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is being read during SELECT processing. (CVS 5399)

FossilOrigin-Name: c80a5d09935c60a2a50bc262c172a94073355f0d
This commit is contained in:
drh
2008-07-11 21:02:53 +00:00
parent f460809030
commit a34605859d
11 changed files with 189 additions and 59 deletions
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10
src/vdbeaux.c
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@@ -14,7 +14,7 @@
** to version 2.8.7, all this code was combined into the vdbe.c source file.
** But that file was getting too big so this subroutines were split out.
**
** $Id: vdbeaux.c,v 1.396 2008/07/11 16:15:18 drh Exp $
** $Id: vdbeaux.c,v 1.397 2008/07/11 21:02:54 drh Exp $
*/
#include "sqliteInt.h"
#include <ctype.h>
@@ -1864,6 +1864,14 @@ int sqlite3VdbeCursorMoveto(Cursor *p){
#endif
p->deferredMoveto = 0;
p->cacheStatus = CACHE_STALE;
}else if( p->pCursor ){
int hasMoved;
int rc = sqlite3BtreeCursorHasMoved(p->pCursor, &hasMoved);
if( rc ) return rc;
if( hasMoved ){
p->cacheStatus = CACHE_STALE;
p->nullRow = 1;
}
}
return SQLITE_OK;
}