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/* When using sql procedures */
#ifdef __GNUC__
#pragma interface /* For gcc */
#endif
#define PROC_NO_SORT 1 /* Bits in flags */
#define PROC_GROUP 2 /* proc must have group */
/* Procedure items used by procedures to store values for send_fields */
class Item_proc :public Item
{
double value;
public:
Item_proc(char *name) { this->name=name; }
enum Type type() const { return Item::PROC_ITEM; }
enum Item_result result_type () const { return REAL_RESULT; }
void set(double nr) { value=nr; }
double val() { return value; }
longlong val_int() { return (longlong) value; }
String *str(String *s) { s->set(value,decimals); return s; }
};
class Procedure {
protected:
List<Item> *fields;
select_result *result;
public:
const uint flags;
ORDER *group,*param_fields;
Procedure(select_result *res,uint flags_par) :result(res),flags(flags_par) {}
virtual ~Procedure() {group=param_fields=0; fields=0; }
virtual void add(void)=0;
virtual void end_group(void)=0;
virtual int send_row(List<Item> &fields)=0;
virtual void change_columns(List<Item> &fields)=0;
};
Procedure *setup_procedure(THD *thd,ORDER *proc_param,select_result *result,
int *error);
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