**    May you find forgiveness for yourself and forgive others.
**    May you share freely, never taking more than you give.
**
*************************************************************************
** This file contains C code routines that are called by the parser
** to handle SELECT statements in SQLite.
**
** $Id: select.c,v 1.247 2005/05/19 08:43:00 danielk1977 Exp $
*/
#include "sqliteInt.h"


/*
** Allocate a new Select structure and return a pointer to that
** structure.
................................................................................
  /* Reset the aggregator
  */
  if( isAgg ){
    int addr = sqlite3VdbeAddOp(v, OP_AggReset, (pGroupBy?0:1), pParse->nAgg);
    for(i=0; i<pParse->nAgg; i++){
      FuncDef *pFunc;
      if( (pFunc = pParse->aAgg[i].pFunc)!=0 && pFunc->xFinalize!=0 ){







        sqlite3VdbeOp3(v, OP_AggInit, 0, i, (char*)pFunc, P3_FUNCDEF);
      }
    }
    if( pGroupBy ){
      int sz = sizeof(KeyInfo) + pGroupBy->nExpr*sizeof(CollSeq*);
      KeyInfo *pKey = (KeyInfo *)sqliteMalloc(sz);
      if( 0==pKey ){
        goto select_end;

**    May you find forgiveness for yourself and forgive others.
**    May you share freely, never taking more than you give.
**
*************************************************************************
** This file contains C code routines that are called by the parser
** to handle SELECT statements in SQLite.
**
** $Id: select.c,v 1.248 2005/05/26 14:41:47 danielk1977 Exp $
*/
#include "sqliteInt.h"


/*
** Allocate a new Select structure and return a pointer to that
** structure.
................................................................................
  /* Reset the aggregator
  */
  if( isAgg ){
    int addr = sqlite3VdbeAddOp(v, OP_AggReset, (pGroupBy?0:1), pParse->nAgg);
    for(i=0; i<pParse->nAgg; i++){
      FuncDef *pFunc;
      if( (pFunc = pParse->aAgg[i].pFunc)!=0 && pFunc->xFinalize!=0 ){
        int nExpr = 0;
#ifdef SQLITE_SSE
        Expr *pAggExpr = pParse->aAgg[i].pExpr;
        if( pAggExpr && pAggExpr->pList ){
          nExpr = pAggExpr->pList->nExpr;
        }
#endif
        sqlite3VdbeOp3(v, OP_AggInit, nExpr, i, (char*)pFunc, P3_FUNCDEF);
      }
    }
    if( pGroupBy ){
      int sz = sizeof(KeyInfo) + pGroupBy->nExpr*sizeof(CollSeq*);
      KeyInfo *pKey = (KeyInfo *)sqliteMalloc(sz);
      if( 0==pKey ){
        goto select_end;

**
** Various scripts scan this source file in order to generate HTML
** documentation, headers files, or other derived files.  The formatting
** of the code in this file is, therefore, important.  See other comments
** in this file for details.  If in doubt, do not deviate from existing
** commenting and indentation practices when changing or adding code.
**
** $Id: vdbe.c,v 1.465 2005/04/01 10:47:40 drh Exp $
*/
#include "sqliteInt.h"
#include "os.h"
#include <ctype.h>
#include "vdbeInt.h"

/*
................................................................................
    goto abort_due_to_error;
  }
  p->pAgg->apFunc = sqliteMalloc( p->pAgg->nMem*sizeof(p->pAgg->apFunc[0]) );
  if( p->pAgg->apFunc==0 ) goto no_mem;
  break;
}

/* Opcode: AggInit * P2 P3
**
** Initialize the function parameters for an aggregate function.
** The aggregate will operate out of aggregate column P2.
** P3 is a pointer to the FuncDef structure for the function.





*/
case OP_AggInit: {        /* no-push */
  int i = pOp->p2;
  assert( i>=0 && i<p->pAgg->nMem );
  p->pAgg->apFunc[i] = (FuncDef*)pOp->p3;
  break;
}

**
** Various scripts scan this source file in order to generate HTML
** documentation, headers files, or other derived files.  The formatting
** of the code in this file is, therefore, important.  See other comments
** in this file for details.  If in doubt, do not deviate from existing
** commenting and indentation practices when changing or adding code.
**
** $Id: vdbe.c,v 1.466 2005/05/26 14:41:47 danielk1977 Exp $
*/
#include "sqliteInt.h"
#include "os.h"
#include <ctype.h>
#include "vdbeInt.h"

/*
................................................................................
    goto abort_due_to_error;
  }
  p->pAgg->apFunc = sqliteMalloc( p->pAgg->nMem*sizeof(p->pAgg->apFunc[0]) );
  if( p->pAgg->apFunc==0 ) goto no_mem;
  break;
}

/* Opcode: AggInit P1 P2 P3
**
** Initialize the function parameters for an aggregate function.
** The aggregate will operate out of aggregate column P2.
** P3 is a pointer to the FuncDef structure for the function.
**
** The P1 argument is not used by this opcode. However if the SSE
** extension is compiled in, P1 is set to the number of arguments that
** will be passed to the aggregate function, if any. This is used
** by SSE to select the correct function when (de)serializing statements.
*/
case OP_AggInit: {        /* no-push */
  int i = pOp->p2;
  assert( i>=0 && i<p->pAgg->nMem );
  p->pAgg->apFunc[i] = (FuncDef*)pOp->p3;
  break;
}