fix: DEFAULT() in a view should be not updatable

vuvova · vuvova · commit b48555e9c9c5 · 2016-08-27T16:59:11.000+02:00
as in

create table t1 (a int);
create view v1 as select default(a) as NOT_UPDATABLE from t1;
diff --git a/sql/item.h b/sql/item.h
@@ -4894,6 +4894,7 @@ class Item_default_value : public Item_field
   bool send(Protocol *protocol, String *buffer);
   int save_in_field(Field *field_arg, bool no_conversions);
   table_map used_tables() const { return (table_map)0L; }
+  Item_field *field_for_view_update() { return 0; }
 
   bool walk(Item_processor processor, bool walk_subquery, void *args)
   {

Original file line number	Diff line number	Diff line change
`@@ -4894,6 +4894,7 @@ class Item_default_value : public Item_field`
`4894`	`4894`	`bool send(Protocol protocol, String buffer);`
`4895`	`4895`	`int save_in_field(Field *field_arg, bool no_conversions);`
`4896`	`4896`	`table_map used_tables() const { return (table_map)0L; }`
	`4897`	`+ Item_field *field_for_view_update() { return 0; }`
`4897`	`4898`
`4898`	`4899`	`bool walk(Item_processor processor, bool walk_subquery, void *args)`
`4899`	`4900`	`{`