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Merge 10.2 into bb-10.2-ext

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This commit is contained in:
Marko Mäkelä
2018-01-17 16:22:27 +02:00
parent 656f66def2 f44017384a
commit c6cd64f3cb
7 changed files with 65 additions and 36 deletions
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37
sql/sql_class.h
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@ -1271,7 +1271,21 @@ public:
*/
struct Item_change_record;
typedef I_List<Item_change_record> Item_change_list;
class Item_change_list
{
I_List<Item_change_record> change_list;
public:
void nocheck_register_item_tree_change(Item **place, Item *old_value,
MEM_ROOT *runtime_memroot);
void check_and_register_item_tree_change(Item **place, Item **new_value,
MEM_ROOT *runtime_memroot);
void rollback_item_tree_changes();
void move_elements_to(Item_change_list *to)
{
change_list.move_elements_to(&to->change_list);
}
bool is_empty() { return change_list.is_empty(); }
};
/**
@ -2032,6 +2046,14 @@ void dbug_serve_apcs(THD *thd, int n_calls);
*/
class THD :public Statement,
/*
This is to track items changed during execution of a prepared
statement/stored procedure. It's created by
nocheck_register_item_tree_change() in memory root of THD,
and freed in rollback_item_tree_changes().
For conventional execution it's always empty.
*/
public Item_change_list,
public MDL_context_owner,
public Open_tables_state
{
@ -2511,14 +2533,6 @@ public:
#ifdef SIGNAL_WITH_VIO_CLOSE
Vio* active_vio;
#endif
/*
This is to track items changed during execution of a prepared
statement/stored procedure. It's created by
nocheck_register_item_tree_change() in memory root of THD, and freed in
rollback_item_tree_changes(). For conventional execution it's always
empty.
*/
Item_change_list change_list;
/*
A permanent memory area of the statement. For conventional
@ -3645,11 +3659,6 @@ public:
*/
memcpy((char*) place, new_value, sizeof(*new_value));
}
void nocheck_register_item_tree_change(Item **place, Item *old_value,
MEM_ROOT *runtime_memroot);
void check_and_register_item_tree_change(Item **place, Item **new_value,
MEM_ROOT *runtime_memroot);
void rollback_item_tree_changes();
/*
Cleanup statement parse state (parse tree, lex) and execution