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Make sure deleting an unused prepared statement does not reference

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uninitialized fields in the structure.

FossilOrigin-Name: 7983eef0422439bfc85950554b000d46a9767ee3
This commit is contained in:
drh
2016-10-01 16:53:45 +00:00
parent 76336d5b9d
commit 8dfef1175e
3 changed files with 10 additions and 10 deletions
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src/vdbeaux.c
+3 -3
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@@ -2949,7 +2949,6 @@ void sqlite3VdbeClearObject(sqlite3 *db, Vdbe *p){
SubProgram *pSub, *pNext;
int i;
assert( p->db==0 || p->db==db );
releaseMemArray(p->aVar, p->nVar);
releaseMemArray(p->aColName, p->nResColumn*COLNAME_N);
for(pSub=p->pProgram; pSub; pSub=pNext){
pNext = pSub->pNext;
@@ -2957,13 +2956,14 @@ void sqlite3VdbeClearObject(sqlite3 *db, Vdbe *p){
sqlite3DbFree(db, pSub);
}
if( p->magic!=VDBE_MAGIC_INIT ){
releaseMemArray(p->aVar, p->nVar);
for(i=p->nzVar-1; i>=0; i--) sqlite3DbFree(db, p->azVar[i]);
sqlite3DbFree(db, p->azVar);
sqlite3DbFree(db, p->pFree);
}
sqlite3DbFree(db, p->azVar);
vdbeFreeOpArray(db, p->aOp, p->nOp);
sqlite3DbFree(db, p->aColName);
sqlite3DbFree(db, p->zSql);
sqlite3DbFree(db, p->pFree);
#ifdef SQLITE_ENABLE_STMT_SCANSTATUS
for(i=0; i<p->nScan; i++){
sqlite3DbFree(db, p->aScan[i].zName);