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Bug #5228 ORDER BY CAST(enumcol) sorts incorrectly under certain conditions

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unknown 2004-09-07 15:42:19 +05:00
commit 95f42e1da2
5 changed files with 61 additions and 0 deletions
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5
sql/item_timefunc.h
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@ -683,6 +683,8 @@ class Item_char_typecast :public Item_typecast
public:
Item_char_typecast(Item *a, int length_arg, CHARSET_INFO *cs_arg)
:Item_typecast(a), cast_length(length_arg), cast_cs(cs_arg) {}
bool eq(const Item *item, bool binary_cmp) const;
const char *func_name() const { return "cast_as_char"; }
const char* cast_type() const { return "char"; };
String *val_str(String *a);
void fix_length_and_dec();
@ -694,6 +696,7 @@ class Item_date_typecast :public Item_typecast_maybe_null
{
public:
Item_date_typecast(Item *a) :Item_typecast_maybe_null(a) {}
const char *func_name() const { return "cast_as_date"; }
String *val_str(String *str);
bool get_date(TIME *ltime, uint fuzzy_date);
const char *cast_type() const { return "date"; }
@ -709,6 +712,7 @@ class Item_time_typecast :public Item_typecast_maybe_null
{
public:
Item_time_typecast(Item *a) :Item_typecast_maybe_null(a) {}
const char *func_name() const { return "cast_as_time"; }
String *val_str(String *str);
bool get_time(TIME *ltime);
const char *cast_type() const { return "time"; }
@ -724,6 +728,7 @@ class Item_datetime_typecast :public Item_typecast_maybe_null
{
public:
Item_datetime_typecast(Item *a) :Item_typecast_maybe_null(a) {}
const char *func_name() const { return "cast_as_datetime"; }
String *val_str(String *str);
const char *cast_type() const { return "datetime"; }
enum_field_types field_type() const { return MYSQL_TYPE_DATETIME; }