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MDEV-11615 Split Item_hybrid_func::fix_attributes into virtual methods in Type_handler

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This commit is contained in:
Alexander Barkov
2016-12-27 09:32:54 +04:00
parent 4e23bfa11c
commit d8c695ead4
5 changed files with 193 additions and 93 deletions
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67
sql/sql_type.h
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@ -28,6 +28,7 @@ class Item;
class Item_cache;
class Item_sum_hybrid;
class Item_func_hex;
class Item_hybrid_func;
class Item_func_hybrid_field_type;
class Item_func_between;
class Item_func_in;
@ -298,6 +299,9 @@ public:
bool no_conversions) const= 0;
virtual Item_cache *Item_get_cache(THD *thd, const Item *item) const= 0;
virtual bool set_comparator_func(Arg_comparator *cmp) const= 0;
virtual bool Item_hybrid_func_fix_attributes(THD *thd, Item_hybrid_func *func,
Item **items,
uint nitems) const= 0;
virtual bool Item_sum_hybrid_fix_length_and_dec(Item_sum_hybrid *) const= 0;
virtual String *Item_func_hex_val_str_ascii(Item_func_hex *item,
String *str) const= 0;
@ -391,6 +395,12 @@ public:
}
Item_cache *Item_get_cache(THD *thd, const Item *item) const;
bool set_comparator_func(Arg_comparator *cmp) const;
bool Item_hybrid_func_fix_attributes(THD *thd, Item_hybrid_func *func,
Item **items, uint nitems) const
{
DBUG_ASSERT(0);
return true;
}
bool Item_sum_hybrid_fix_length_and_dec(Item_sum_hybrid *func) const
{
DBUG_ASSERT(0);
@ -473,6 +483,8 @@ public:
int Item_save_in_field(Item *item, Field *field, bool no_conversions) const;
Item_cache *Item_get_cache(THD *thd, const Item *item) const;
bool set_comparator_func(Arg_comparator *cmp) const;
bool Item_hybrid_func_fix_attributes(THD *thd, Item_hybrid_func *func,
Item **items, uint nitems) const;
bool Item_sum_hybrid_fix_length_and_dec(Item_sum_hybrid *func) const;
String *Item_func_hex_val_str_ascii(Item_func_hex *item, String *str) const;
String *Item_func_hybrid_field_type_val_str(Item_func_hybrid_field_type *,
@ -513,6 +525,8 @@ public:
int Item_save_in_field(Item *item, Field *field, bool no_conversions) const;
Item_cache *Item_get_cache(THD *thd, const Item *item) const;
bool set_comparator_func(Arg_comparator *cmp) const;
bool Item_hybrid_func_fix_attributes(THD *thd, Item_hybrid_func *func,
Item **items, uint nitems) const;
bool Item_sum_hybrid_fix_length_and_dec(Item_sum_hybrid *func) const;
String *Item_func_hex_val_str_ascii(Item_func_hex *item, String *str) const;
String *Item_func_hybrid_field_type_val_str(Item_func_hybrid_field_type *,
@ -551,6 +565,8 @@ public:
int Item_save_in_field(Item *item, Field *field, bool no_conversions) const;
Item_cache *Item_get_cache(THD *thd, const Item *item) const;
bool set_comparator_func(Arg_comparator *cmp) const;
bool Item_hybrid_func_fix_attributes(THD *thd, Item_hybrid_func *func,
Item **items, uint nitems) const;
bool Item_sum_hybrid_fix_length_and_dec(Item_sum_hybrid *func) const;
String *Item_func_hex_val_str_ascii(Item_func_hex *item, String *str) const;
String *Item_func_hybrid_field_type_val_str(Item_func_hybrid_field_type *,
@ -626,6 +642,8 @@ public:
int Item_save_in_field(Item *item, Field *field, bool no_conversions) const;
Item_cache *Item_get_cache(THD *thd, const Item *item) const;
bool set_comparator_func(Arg_comparator *cmp) const;
bool Item_hybrid_func_fix_attributes(THD *thd, Item_hybrid_func *func,
Item **items, uint nitems) const;
bool Item_sum_hybrid_fix_length_and_dec(Item_sum_hybrid *func) const;
String *Item_func_hex_val_str_ascii(Item_func_hex *item, String *str) const;
String *Item_func_hybrid_field_type_val_str(Item_func_hybrid_field_type *,
@ -778,6 +796,8 @@ public:
enum_field_types field_type() const { return MYSQL_TYPE_TIME; }
const Type_handler *type_handler_for_comparison() const;
int Item_save_in_field(Item *item, Field *field, bool no_conversions) const;
bool Item_hybrid_func_fix_attributes(THD *thd, Item_hybrid_func *func,
Item **items, uint nitems) const;
cmp_item *make_cmp_item(THD *thd, CHARSET_INFO *cs) const;
in_vector *make_in_vector(THD *, const Item_func_in *, uint nargs) const;
};
@ -813,62 +833,85 @@ public:
};
class Type_handler_date: public Type_handler_temporal_with_date
class Type_handler_date_common: public Type_handler_temporal_with_date
{
public:
virtual ~Type_handler_date_common() {}
enum_field_types field_type() const { return MYSQL_TYPE_DATE; }
bool Item_hybrid_func_fix_attributes(THD *thd, Item_hybrid_func *func,
Item **items, uint nitems) const;
};
class Type_handler_date: public Type_handler_date_common
{
public:
virtual ~Type_handler_date() {}
enum_field_types field_type() const { return MYSQL_TYPE_DATE; }
Field *make_conversion_table_field(TABLE *, uint metadata,
const Field *target) const;
};
class Type_handler_newdate: public Type_handler_temporal_with_date
class Type_handler_newdate: public Type_handler_date_common
{
public:
virtual ~Type_handler_newdate() {}
enum_field_types field_type() const { return MYSQL_TYPE_DATE; }
Field *make_conversion_table_field(TABLE *, uint metadata,
const Field *target) const;
};
class Type_handler_datetime: public Type_handler_temporal_with_date
class Type_handler_datetime_common: public Type_handler_temporal_with_date
{
public:
virtual ~Type_handler_datetime_common() {}
enum_field_types field_type() const { return MYSQL_TYPE_DATETIME; }
bool Item_hybrid_func_fix_attributes(THD *thd, Item_hybrid_func *func,
Item **items, uint nitems) const;
};
class Type_handler_datetime: public Type_handler_datetime_common
{
public:
virtual ~Type_handler_datetime() {}
enum_field_types field_type() const { return MYSQL_TYPE_DATETIME; }
Field *make_conversion_table_field(TABLE *, uint metadata,
const Field *target) const;
};
class Type_handler_datetime2: public Type_handler_temporal_with_date
class Type_handler_datetime2: public Type_handler_datetime_common
{
public:
virtual ~Type_handler_datetime2() {}
enum_field_types field_type() const { return MYSQL_TYPE_DATETIME; }
enum_field_types real_field_type() const { return MYSQL_TYPE_DATETIME2; }
Field *make_conversion_table_field(TABLE *, uint metadata,
const Field *target) const;
};
class Type_handler_timestamp: public Type_handler_temporal_with_date
class Type_handler_timestamp_common: public Type_handler_temporal_with_date
{
public:
virtual ~Type_handler_timestamp_common() {}
enum_field_types field_type() const { return MYSQL_TYPE_TIMESTAMP; }
bool Item_hybrid_func_fix_attributes(THD *thd, Item_hybrid_func *func,
Item **items, uint nitems) const;
};
class Type_handler_timestamp: public Type_handler_timestamp_common
{
public:
virtual ~Type_handler_timestamp() {}
enum_field_types field_type() const { return MYSQL_TYPE_TIMESTAMP; }
Field *make_conversion_table_field(TABLE *, uint metadata,
const Field *target) const;
};
class Type_handler_timestamp2: public Type_handler_temporal_with_date
class Type_handler_timestamp2: public Type_handler_timestamp_common
{
public:
virtual ~Type_handler_timestamp2() {}
enum_field_types field_type() const { return MYSQL_TYPE_TIMESTAMP; }
enum_field_types real_field_type() const { return MYSQL_TYPE_TIMESTAMP2; }
Field *make_conversion_table_field(TABLE *, uint metadata,
const Field *target) const;