pA->zSql = pB->zSql;
  pB->zSql = zTmp;
  pB->isPrepareV2 = pA->isPrepareV2;
}

/*
** Resize the Vdbe.aOp array so that it is at least nOp elements larger 
** its current size. nOp is guaranteed to be less than or equal to 1024.

**
** If an out-of-memory error occurs while resizing the array, return
** SQLITE_NOMEM. In this case Vdbe.aOp and Parse.nOpAlloc remain 
** unchanged (this is so that any opcodes already allocated can be 
** correctly deallocated along with the rest of the Vdbe).
*/
static int growOpArray(Vdbe *v, int nOp){
  VdbeOp *pNew;
  Parse *p = v->pParse;

  /* If SQLITE_TEST_REALLOC_STRESS is defined and the current op array is
  ** less than 512 entries in size, grow the op array by the minimum amount 
  ** required. Otherwise, allocate either double the current size of the 



  ** array or 1KB of space, whichever is smaller.  */
#ifdef SQLITE_TEST_REALLOC_STRESS
  int nNew = (p->nOpAlloc>=512 ? p->nOpAlloc*2 : p->nOpAlloc+nOp);
#else
  int nNew = (p->nOpAlloc ? p->nOpAlloc*2 : (int)(1024/sizeof(Op)));
  UNUSED_PARAMETER(nOp);
#endif


  assert( nNew>=(p->nOpAlloc+nOp) );
  pNew = sqlite3DbRealloc(p->db, v->aOp, nNew*sizeof(Op));
  if( pNew ){
    p->nOpAlloc = sqlite3DbMallocSize(p->db, pNew)/sizeof(Op);
    v->aOp = pNew;
  }
  return (pNew ? SQLITE_OK : SQLITE_NOMEM);

  pA->zSql = pB->zSql;
  pB->zSql = zTmp;
  pB->isPrepareV2 = pA->isPrepareV2;
}

/*
** Resize the Vdbe.aOp array so that it is at least nOp elements larger 
** than its current size. nOp is guaranteed to be less than or equal
** to 1024/sizeof(Op).
**
** If an out-of-memory error occurs while resizing the array, return
** SQLITE_NOMEM. In this case Vdbe.aOp and Parse.nOpAlloc remain 
** unchanged (this is so that any opcodes already allocated can be 
** correctly deallocated along with the rest of the Vdbe).
*/
static int growOpArray(Vdbe *v, int nOp){
  VdbeOp *pNew;
  Parse *p = v->pParse;

  /* The SQLITE_TEST_REALLOC_STRESS compile-time option is designed to force
  ** more frequent reallocs and hence provide more opportunities for 
  ** simulated OOM faults.  SQLITE_TEST_REALLOC_STRESS is generally used
  ** during testing only.  With SQLITE_TEST_REALLOC_STRESS grow the op array
  ** by the minimum* amount required until the size reaches 512.  Normal
  ** operation (without SQLITE_TEST_REALLOC_STRESS) is to double the current
  ** size of the op array or add 1KB of space, whichever is smaller. */
#ifdef SQLITE_TEST_REALLOC_STRESS
  int nNew = (p->nOpAlloc>=512 ? p->nOpAlloc*2 : p->nOpAlloc+nOp);
#else
  int nNew = (p->nOpAlloc ? p->nOpAlloc*2 : (int)(1024/sizeof(Op)));
  UNUSED_PARAMETER(nOp);
#endif

  assert( nOp<=(1024/sizeof(Op)) );
  assert( nNew>=(p->nOpAlloc+nOp) );
  pNew = sqlite3DbRealloc(p->db, v->aOp, nNew*sizeof(Op));
  if( pNew ){
    p->nOpAlloc = sqlite3DbMallocSize(p->db, pNew)/sizeof(Op);
    v->aOp = pNew;
  }
  return (pNew ? SQLITE_OK : SQLITE_NOMEM);