diff options
Diffstat (limited to 'sql/item.h')
| -rw-r--r-- | sql/item.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/sql/item.h b/sql/item.h index 4dc65c52843..b7e6cc6c204 100644 --- a/sql/item.h +++ b/sql/item.h @@ -514,6 +514,13 @@ public: char * name; /* Name from select */ /* Original item name (if it was renamed)*/ char * orig_name; + /** + Intrusive list pointer for free list. If not null, points to the next + Item on some Query_arena's free list. For instance, stored procedures + have their own Query_arena's. + + @see Query_arena::free_list + */ Item *next; uint32 max_length; uint name_length; /* Length of name */ @@ -987,6 +994,23 @@ public: return FALSE; } + /** + Find a function of a given type + + @param arg the function type to search (enum Item_func::Functype) + @return + @retval TRUE the function type we're searching for is found + @retval FALSE the function type wasn't found + + @description + This function can be used (together with Item::walk()) to find functions + in an item tree fragment. + */ + virtual bool find_function_processor (uchar *arg) + { + return FALSE; + } + /* For SP local variable returns pointer to Item representing its current value and pointer to current Item otherwise. |