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Modify the OP_IfNotOpen opcode so that the jump is taken if the cursor is open

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but was previously set to a NULL row using OP_NullRow.

FossilOrigin-Name: 1292d68caa7086610ddda343f3852e63de8da1eb66536ee4716b6529f5a31bc6
This commit is contained in:
drh
2022-09-20 19:22:17 +00:00
parent 5a0771a1f4
commit 8b9a3d1fc8
4 changed files with 16 additions and 12 deletions
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10
src/vdbe.c
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@@ -4897,12 +4897,16 @@ case OP_SeekHit: {
/* Opcode: IfNotOpen P1 P2 * * *
** Synopsis: if( !csr[P1] ) goto P2
**
** If cursor P1 is not open, jump to instruction P2. Otherwise, fall through.
** If cursor P1 is not open or if P1 is set to a NULL row using the
** OP_NullRow opcode, then jump to instruction P2. Otherwise, fall through.
*/
case OP_IfNotOpen: { /* jump */
VdbeCursor *pCur;
assert( pOp->p1>=0 && pOp->p1<p->nCursor );
VdbeBranchTaken(p->apCsr[pOp->p1]==0, 2);
if( !p->apCsr[pOp->p1] ){
pCur = p->apCsr[pOp->p1];
VdbeBranchTaken(pCur==0 || pCur->nullRow, 2);
if( pCur==0 || pCur->nullRow ){
goto jump_to_p2_and_check_for_interrupt;
}
break;