** inplicit conversion from one type to the other occurs as necessary.
** 
** Most of the code in this file is taken up by the sqliteVdbeExec()
** function which does the work of interpreting a VDBE program.
** But other routines are also provided to help in building up
** a program instruction by instruction.
**
** $Id: vdbe.c,v 1.21 2000/06/06 17:27:06 drh Exp $
*/
#include "sqliteInt.h"
#include <unistd.h>

/*
** SQL is translated into a sequence of instructions to be
** executed by a virtual machine.  Each instruction is an instance
................................................................................
      */
      case OP_AggNext: {
        if( p->agg.nHash ){
          p->agg.nHash = 0;
          sqliteFree(p->agg.apHash);
          p->agg.apHash = 0;
          p->agg.pCurrent = p->agg.pFirst;
        }else if( p->agg.pCurrent==p->agg.pFirst ){
          int i;
          AggElem *pElem = p->agg.pCurrent;
          for(i=0; i<p->agg.nMem; i++){
            if( pElem->aMem[i].s.flags & STK_Dyn ){
              sqliteFree(pElem->aMem[i].z);
            }
          }

** inplicit conversion from one type to the other occurs as necessary.
** 
** Most of the code in this file is taken up by the sqliteVdbeExec()
** function which does the work of interpreting a VDBE program.
** But other routines are also provided to help in building up
** a program instruction by instruction.
**
** $Id: vdbe.c,v 1.22 2000/06/06 19:18:24 drh Exp $
*/
#include "sqliteInt.h"
#include <unistd.h>

/*
** SQL is translated into a sequence of instructions to be
** executed by a virtual machine.  Each instruction is an instance
................................................................................
      */
      case OP_AggNext: {
        if( p->agg.nHash ){
          p->agg.nHash = 0;
          sqliteFree(p->agg.apHash);
          p->agg.apHash = 0;
          p->agg.pCurrent = p->agg.pFirst;
        }else if( p->agg.pCurrent==p->agg.pFirst && p->agg.pCurrent!=0 ){
          int i;
          AggElem *pElem = p->agg.pCurrent;
          for(i=0; i<p->agg.nMem; i++){
            if( pElem->aMem[i].s.flags & STK_Dyn ){
              sqliteFree(pElem->aMem[i].z);
            }
          }