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/* Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
/* Compability file ; This file only contains dummy functions */
#ifdef USE_PRAGMA_INTERFACE
#pragma interface
#endif
#include <queues.h>
class Item_func_unique_users :public Item_real_func
{
public:
Item_func_unique_users(Item *name_arg,int start,int end,List<Item> &list)
:Item_real_func(list) {}
double val_real() { DBUG_ASSERT(fixed == 1); return 0.0; }
void fix_length_and_dec() { decimals=0; max_length=6; }
void print(String *str) { str->append(STRING_WITH_LEN("0.0")); }
const char *func_name() const { return "unique_users"; }
};
class Item_sum_unique_users :public Item_sum_num
{
public:
Item_sum_unique_users(Item *name_arg,int start,int end,Item *item_arg)
:Item_sum_num(item_arg) {}
Item_sum_unique_users(THD *thd, Item_sum_unique_users *item)
:Item_sum_num(thd, item) {}
double val_real() { DBUG_ASSERT(fixed == 1); return 0.0; }
enum Sumfunctype sum_func () const {return UNIQUE_USERS_FUNC;}
void clear() {}
bool add() { return 0; }
void reset_field() {}
void update_field() {}
bool fix_fields(THD *thd, Item **ref)
{
DBUG_ASSERT(fixed == 0);
fixed= 1;
return FALSE;
}
Item *copy_or_same(THD* thd)
{
return new Item_sum_unique_users(thd, this);
}
void print(String *str) { str->append(STRING_WITH_LEN("0.0")); }
Field *create_tmp_field(bool group, TABLE *table, uint convert_blob_length);
const char *func_name() const { return "sum_unique_users"; }
};
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