diff options
Diffstat (limited to 'sql/item_func.h')
| -rw-r--r-- | sql/item_func.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/sql/item_func.h b/sql/item_func.h index 5de493a5341..36d6dcbe002 100644 --- a/sql/item_func.h +++ b/sql/item_func.h @@ -940,6 +940,11 @@ public: void fix_length_and_dec(); void print(String *str); enum Item_result result_type() const; + /* + We must always return variables as strings to guard against selects of type + select @t1:=1,@t1,@t:="hello",@t from foo where (@t1:= t2.b) + */ + enum_field_types field_type() const { return MYSQL_TYPE_STRING; } const char *func_name() const { return "get_user_var"; } bool const_item() const { return const_var_flag; } table_map used_tables() const |