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Restructure a loop in window.c to avoid hitting an assert() following an OOM. dbsqlfuzz test case 6ef74a9659de87e9be3d8694ad062c448aa7ef1d.

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FossilOrigin-Name: 887c19a15ba60a5dc375dda7e289d476ba24d4adb38086a013df9709b88f32a7
This commit is contained in:
dan
2021-04-06 18:40:27 +00:00
parent 112501fec2
commit 5a9fd231ea
3 changed files with 11 additions and 11 deletions
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8
src/window.c
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@@ -1686,15 +1686,15 @@ static void windowAggStep(
}
if( pWin->bExprArgs ){
int iStart = sqlite3VdbeCurrentAddr(v);
VdbeOp *pOp, *pEnd;
int iOp = sqlite3VdbeCurrentAddr(v);
int iEnd;
nArg = pWin->pOwner->x.pList->nExpr;
regArg = sqlite3GetTempRange(pParse, nArg);
sqlite3ExprCodeExprList(pParse, pWin->pOwner->x.pList, regArg, 0, 0);
pEnd = sqlite3VdbeGetOp(v, -1);
for(pOp=sqlite3VdbeGetOp(v, iStart); pOp<=pEnd; pOp++){
for(iEnd=sqlite3VdbeCurrentAddr(v); iOp<iEnd; iOp++){
VdbeOp *pOp = sqlite3VdbeGetOp(v, iOp);
if( pOp->opcode==OP_Column && pOp->p1==pWin->iEphCsr ){
pOp->p1 = csr;
}