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More aggressive detection of OOM errors in resolveAlias().

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dbsqlfuzz 7f96832c2ef7ee472022ed805b064e55e41094b2

FossilOrigin-Name: e99faf4f82746761c389e24db1b00ee94b9f849e7bcb29517fa0ca10290afc41
This commit is contained in:
drh
2021-04-26 15:28:06 +00:00
parent 8ed8ddf759
commit 3c6edc8a11
4 changed files with 15 additions and 9 deletions
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3
src/expr.c
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@@ -1324,6 +1324,7 @@ static Expr *exprDup(sqlite3 *db, Expr *p, int dupFlags, u8 **pzBuffer){
if( pzBuffer ){
zAlloc = *pzBuffer;
staticFlag = EP_Static;
assert( zAlloc!=0 );
}else{
zAlloc = sqlite3DbMallocRawNN(db, dupedExprSize(p, dupFlags));
staticFlag = 0;
@@ -2356,8 +2357,10 @@ int sqlite3ExprIsInteger(Expr *p, int *pValue){
*/
int sqlite3ExprCanBeNull(const Expr *p){
u8 op;
assert( p!=0 );
while( p->op==TK_UPLUS || p->op==TK_UMINUS ){
p = p->pLeft;
assert( p!=0 );
}
op = p->op;
if( op==TK_REGISTER ) op = p->op2;