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Overview
| Comment: | Change sqlite3SelectDup() to always return NULL if an OOM has occurred. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA3-256: |
01ba4641ab436c6065c8725908fc0913 |
| User & Date: | drh 2019-10-09 15:00:37 |
Context
|
2019-10-09
| ||
| 15:37 | An improved fix for the dbsqlfuzz-discovered ALWAYS() failure following OOM in sqlite3ExprCollSeq(). This time with a test case (engineered by Dan). check-in: 907f7965 user: drh tags: trunk | |
| 15:03 | New test cases added to test/fuzzdata8.db. check-in: b68d21e9 user: drh tags: trunk | |
| 15:00 | Change sqlite3SelectDup() to always return NULL if an OOM has occurred. check-in: 01ba4641 user: drh tags: trunk | |
| 01:19 | Save CPU cycles in sqlite3Prepare() by, among other things, shifting the EXPLAIN column label logic over to sqlite3VdbeMakeReady(). check-in: 1ca5ef84 user: drh tags: trunk | |
Changes
Changes to src/alter.c.
1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 |
/*
** Walker select callback used by "RENAME TABLE".
*/
static int renameTableSelectCb(Walker *pWalker, Select *pSelect){
int i;
RenameCtx *p = pWalker->u.pRename;
SrcList *pSrc = pSelect->pSrc;
if( pSrc==0 ){
assert( pWalker->pParse->db->mallocFailed );
return WRC_Abort;
}
for(i=0; i<pSrc->nSrc; i++){
struct SrcList_item *pItem = &pSrc->a[i];
if( pItem->pTab==p->pTab ){
renameTokenFind(pWalker->pParse, p, pItem->zName);
}
|
| < |
1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 |
/*
** Walker select callback used by "RENAME TABLE".
*/
static int renameTableSelectCb(Walker *pWalker, Select *pSelect){
int i;
RenameCtx *p = pWalker->u.pRename;
SrcList *pSrc = pSelect->pSrc;
if( NEVER(pSrc==0) ){
return WRC_Abort;
}
for(i=0; i<pSrc->nSrc; i++){
struct SrcList_item *pItem = &pSrc->a[i];
if( pItem->pTab==p->pTab ){
renameTokenFind(pWalker->pParse, p, pItem->zName);
}
|
Changes to src/build.c.
4139 4140 4141 4142 4143 4144 4145 4146 4147 4148 4149 4150 4151 4152 4153 4154 |
/*
** Assign VdbeCursor index numbers to all tables in a SrcList
*/
void sqlite3SrcListAssignCursors(Parse *pParse, SrcList *pList){
int i;
struct SrcList_item *pItem;
assert(pList || pParse->db->mallocFailed );
if( pList ){
for(i=0, pItem=pList->a; i<pList->nSrc; i++, pItem++){
if( pItem->iCursor>=0 ) break;
pItem->iCursor = pParse->nTab++;
if( pItem->pSelect ){
sqlite3SrcListAssignCursors(pParse, pItem->pSelect->pSrc);
}
}
|
| < |
4139 4140 4141 4142 4143 4144 4145 4146 4147 4148 4149 4150 4151 4152 4153 |
/*
** Assign VdbeCursor index numbers to all tables in a SrcList
*/
void sqlite3SrcListAssignCursors(Parse *pParse, SrcList *pList){
int i;
struct SrcList_item *pItem;
if( ALWAYS(pList) ){
for(i=0, pItem=pList->a; i<pList->nSrc; i++, pItem++){
if( pItem->iCursor>=0 ) break;
pItem->iCursor = pParse->nTab++;
if( pItem->pSelect ){
sqlite3SrcListAssignCursors(pParse, pItem->pSelect->pSrc);
}
}
|
Changes to src/expr.c.
1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 |
#endif
pNew->selId = p->selId;
*pp = pNew;
pp = &pNew->pPrior;
pNext = pNew;
}
return pRet;
}
#else
Select *sqlite3SelectDup(sqlite3 *db, Select *p, int flags){
assert( p==0 );
return 0;
}
|
> > > > |
1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 |
#endif
pNew->selId = p->selId;
*pp = pNew;
pp = &pNew->pPrior;
pNext = pNew;
}
if( db->mallocFailed ){
sqlite3SelectDelete(db, pRet);
pRet = 0;
}
return pRet;
}
#else
Select *sqlite3SelectDup(sqlite3 *db, Select *p, int flags){
assert( p==0 );
return 0;
}
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