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When an attempt is made to insert an explicit NULL into an INTEGER

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PRIMARY KEY column, automatically convert the NULL value into a unique
integer key.  This was already happening when an implied NULL was
inserted - when the INTEGER PRIMARY KEY column was omitted from the
list of columns being inserted.  Patches from Christian Werner. (CVS 510)

FossilOrigin-Name: 9e3cf4aa2cb44932015b8bd3fd800d7678cb09b6
This commit is contained in:
drh
2002-03-31 18:29:03 +00:00
parent 035bd01d6a
commit e1e68f4974
6 changed files with 45 additions and 13 deletions
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11
src/insert.c
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@ -12,7 +12,7 @@
** This file contains C code routines that are called by the parser
** to handle INSERT statements in SQLite.
**
** $Id: insert.c,v 1.47 2002/03/03 18:59:41 drh Exp $
** $Id: insert.c,v 1.48 2002/03/31 18:29:03 drh Exp $
*/
#include "sqliteInt.h"
@ -206,7 +206,16 @@ void sqliteInsert(
if( srcTab>=0 ){
sqliteVdbeAddOp(v, OP_Column, srcTab, keyColumn);
}else{
int addr;
sqliteExprCode(pParse, pList->a[keyColumn].pExpr);
/* If the PRIMARY KEY expression is NULL, then use OP_NewRecno
** to generate a unique primary key value.
*/
addr = sqliteVdbeAddOp(v, OP_Dup, 0, 1);
sqliteVdbeAddOp(v, OP_NotNull, 0, addr+4);
sqliteVdbeAddOp(v, OP_Pop, 1, 0);
sqliteVdbeAddOp(v, OP_NewRecno, base, 0);
}
sqliteVdbeAddOp(v, OP_MustBeInt, 0, 0);
}else{