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MDEV-15758 Split Item_bool_func::get_mm_leaf() into virtual methods in Field and Type_handler

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This commit is contained in:
Alexander Barkov
2018-07-20 11:07:19 +04:00
parent 6bfeace10b
commit fee4632387
6 changed files with 589 additions and 232 deletions
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25
sql/sql_type.h
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@ -77,6 +77,17 @@ struct SORT_FIELD_ATTR;
class Vers_history_point;
enum scalar_comparison_op
{
SCALAR_CMP_EQ,
SCALAR_CMP_EQUAL,
SCALAR_CMP_LT,
SCALAR_CMP_LE,
SCALAR_CMP_GE,
SCALAR_CMP_GT
};
/**
Class Time is designed to store valid TIME values.
@ -1184,6 +1195,8 @@ public:
{
return this;
}
virtual int
stored_field_cmp_to_item(THD *thd, Field *field, Item *item) const= 0;
virtual CHARSET_INFO *charset_for_protocol(const Item *item) const;
virtual const Type_handler*
type_handler_adjusted_to_max_octet_length(uint max_octet_length,
@ -1562,6 +1575,11 @@ public:
return ROW_RESULT;
}
const Type_handler *type_handler_for_comparison() const;
int stored_field_cmp_to_item(THD *thd, Field *field, Item *item) const
{
DBUG_ASSERT(0);
return 0;
}
bool subquery_type_allows_materialization(const Item *inner,
const Item *outer) const
{
@ -1888,6 +1906,7 @@ public:
Item_result cmp_type() const { return REAL_RESULT; }
virtual ~Type_handler_real_result() {}
const Type_handler *type_handler_for_comparison() const;
int stored_field_cmp_to_item(THD *thd, Field *field, Item *item) const;
bool subquery_type_allows_materialization(const Item *inner,
const Item *outer) const;
void make_sort_key(uchar *to, Item *item, const SORT_FIELD_ATTR *sort_field,
@ -1965,6 +1984,7 @@ public:
Item_result cmp_type() const { return DECIMAL_RESULT; }
virtual ~Type_handler_decimal_result() {};
const Type_handler *type_handler_for_comparison() const;
int stored_field_cmp_to_item(THD *thd, Field *field, Item *item) const;
bool subquery_type_allows_materialization(const Item *inner,
const Item *outer) const;
Field *make_num_distinct_aggregator_field(MEM_ROOT *, const Item *) const;
@ -2174,6 +2194,7 @@ public:
bool is_limit_clause_valid_type() const { return true; }
virtual ~Type_handler_int_result() {}
const Type_handler *type_handler_for_comparison() const;
int stored_field_cmp_to_item(THD *thd, Field *field, Item *item) const;
bool subquery_type_allows_materialization(const Item *inner,
const Item *outer) const;
Field *make_num_distinct_aggregator_field(MEM_ROOT *, const Item *) const;
@ -2237,6 +2258,7 @@ public:
bool Item_func_mul_fix_length_and_dec(Item_func_mul *) const;
bool Item_func_div_fix_length_and_dec(Item_func_div *) const;
bool Item_func_mod_fix_length_and_dec(Item_func_mod *) const;
};
@ -2331,6 +2353,7 @@ public:
CHARSET_INFO *charset_for_protocol(const Item *item) const;
virtual ~Type_handler_string_result() {}
const Type_handler *type_handler_for_comparison() const;
int stored_field_cmp_to_item(THD *thd, Field *field, Item *item) const;
const Type_handler *
type_handler_adjusted_to_max_octet_length(uint max_octet_length,
CHARSET_INFO *cs) const;
@ -2885,6 +2908,7 @@ public:
return Item_divisor_precision_increment_with_seconds(item);
}
const Type_handler *type_handler_for_comparison() const;
int stored_field_cmp_to_item(THD *thd, Field *field, Item *item) const;
void Column_definition_implicit_upgrade(Column_definition *c) const;
bool Column_definition_fix_attributes(Column_definition *c) const;
bool Item_save_in_value(Item *item, st_value *value) const;
@ -2986,6 +3010,7 @@ public:
virtual ~Type_handler_temporal_with_date() {}
bool Item_eq_value(THD *thd, const Type_cmp_attributes *attr,
Item *a, Item *b) const;
int stored_field_cmp_to_item(THD *thd, Field *field, Item *item) const;
bool Item_save_in_value(Item *item, st_value *value) const;
bool Item_send(Item *item, Protocol *protocol, st_value *buf) const
{