diff options
Diffstat (limited to 'sql/item.h')
| -rw-r--r-- | sql/item.h | 29 |
1 files changed, 24 insertions, 5 deletions
diff --git a/sql/item.h b/sql/item.h index 6603e11166b..111892df688 100644 --- a/sql/item.h +++ b/sql/item.h @@ -34,13 +34,13 @@ public: enum Type {FIELD_ITEM, FUNC_ITEM, SUM_FUNC_ITEM, STRING_ITEM, INT_ITEM, REAL_ITEM, NULL_ITEM, VARBIN_ITEM, COPY_STR_ITEM, FIELD_AVG_ITEM, DEFAULT_VALUE_ITEM, - PROC_ITEM,COND_ITEM, REF_ITEM, FIELD_STD_ITEM, - FIELD_VARIANCE_ITEM, CONST_ITEM, + PROC_ITEM,COND_ITEM, REF_ITEM, FIELD_STD_ITEM, + FIELD_VARIANCE_ITEM, INSERT_VALUE_ITEM, SUBSELECT_ITEM, ROW_ITEM, CACHE_ITEM}; enum cond_result { COND_UNDEF,COND_OK,COND_TRUE,COND_FALSE }; - enum coercion { COER_COERCIBLE=3, COER_IMPLICIT=2, - COER_NOCOLL=1, COER_EXPLICIT=0 }; + enum coercion { COER_COERCIBLE=3, COER_IMPLICIT=2, + COER_NOCOLL=1, COER_EXPLICIT=0 }; String str_value; /* used to store value */ my_string name; /* Name from select */ @@ -201,6 +201,7 @@ public: bool is_null() { return field->is_null(); } Item *get_tmp_table_item(THD *thd); friend class Item_default_value; + friend class Item_insert_value; }; class Item_null :public Item @@ -734,7 +735,7 @@ public: Item *arg; Item_default_value() : Item_field((const char *)NULL, (const char *)NULL, (const char *)NULL), arg(NULL) {} - Item_default_value(Item *a) : + Item_default_value(Item *a) : Item_field((const char *)NULL, (const char *)NULL, (const char *)NULL), arg(a) {} enum Type type() const { return DEFAULT_VALUE_ITEM; } bool eq(const Item *item, bool binary_cmp) const; @@ -754,6 +755,24 @@ public: table_map used_tables() const { return (table_map)0L; } }; +class Item_insert_value : public Item_field +{ +public: + Item *arg; + Item_insert_value(Item *a) : + Item_field((const char *)NULL, (const char *)NULL, (const char *)NULL), arg(a) {} + bool eq(const Item *item, bool binary_cmp) const; + bool fix_fields(THD *, struct st_table_list *, Item **); + void set_outer_resolving() { arg->set_outer_resolving(); } + void print(String *str); + virtual bool basic_const_item() const { return true; } + int save_in_field(Field *field, bool no_conversions) + { + return Item_field::save_in_field(field, no_conversions); + } + table_map used_tables() const { return (table_map)0L; } +}; + class Item_cache: public Item { table_map used_table_map; |