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MDEV-11528 Split Item_func_min_max::val_xxx() and Item_func_min_max::get_date() into methods in Type_handler

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This commit is contained in:
Alexander Barkov
2016-12-30 15:39:33 +04:00
parent b4ef7b25e4
commit 9b2bcf19f4
4 changed files with 260 additions and 81 deletions
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41
sql/item_func.h
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@@ -1284,11 +1284,42 @@ public:
Item_func_min_max(THD *thd, List<Item> &list, int cmp_sign_arg):
Item_hybrid_func(thd, list), cmp_sign(cmp_sign_arg)
{}
double val_real();
longlong val_int();
String *val_str(String *);
my_decimal *val_decimal(my_decimal *);
bool get_date(MYSQL_TIME *res, ulonglong fuzzy_date);
String *val_str_native(String *str);
double val_real_native();
longlong val_int_native();
my_decimal *val_decimal_native(my_decimal *);
bool get_date_native(MYSQL_TIME *res, ulonglong fuzzydate);
double val_real()
{
DBUG_ASSERT(fixed);
return Item_func_min_max::type_handler()->
Item_func_min_max_val_real(this);
}
longlong val_int()
{
DBUG_ASSERT(fixed);
return Item_func_min_max::type_handler()->
Item_func_min_max_val_int(this);
}
String *val_str(String *str)
{
DBUG_ASSERT(fixed);
return Item_func_min_max::type_handler()->
Item_func_min_max_val_str(this, str);
}
my_decimal *val_decimal(my_decimal *dec)
{
DBUG_ASSERT(fixed);
return Item_func_min_max::type_handler()->
Item_func_min_max_val_decimal(this, dec);
}
bool get_date(MYSQL_TIME *res, ulonglong fuzzy_date)
{
DBUG_ASSERT(fixed);
return Item_func_min_max::type_handler()->
Item_func_min_max_get_date(this, res, fuzzy_date);
}
void fix_length_and_dec();
};