diff options
Diffstat (limited to 'sql/item_strfunc.h')
| -rw-r--r-- | sql/item_strfunc.h | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/sql/item_strfunc.h b/sql/item_strfunc.h index 1c35588f884..c322136bef2 100644 --- a/sql/item_strfunc.h +++ b/sql/item_strfunc.h @@ -505,9 +505,12 @@ public: class Item_func_substr :public Item_str_func { String tmp_value; +protected: + virtual longlong get_position() { return args[1]->val_int(); } public: Item_func_substr(THD *thd, Item *a, Item *b): Item_str_func(thd, a, b) {} - Item_func_substr(THD *thd, Item *a, Item *b, Item *c): Item_str_func(thd, a, b, c) {} + Item_func_substr(THD *thd, Item *a, Item *b, Item *c): + Item_str_func(thd, a, b, c) {} String *val_str(String *); void fix_length_and_dec(); const char *func_name() const { return "substr"; } @@ -515,6 +518,20 @@ public: { return get_item_copy<Item_func_substr>(thd, mem_root, this); } }; +class Item_func_substr_oracle :public Item_func_substr +{ +protected: + longlong get_position() + { longlong pos= args[1]->val_int(); return pos == 0 ? 1 : pos; } +public: + Item_func_substr_oracle(THD *thd, Item *a, Item *b): + Item_func_substr(thd, a, b) {} + Item_func_substr_oracle(THD *thd, Item *a, Item *b, Item *c): + Item_func_substr(thd, a, b, c) {} + const char *func_name() const { return "substr_oracle"; } + Item *get_copy(THD *thd, MEM_ROOT *mem_root) + { return get_item_copy<Item_func_substr_oracle>(thd, mem_root, this); } +}; class Item_func_substr_index :public Item_str_func { |