1 files changed, 20 insertions, 0 deletions
diff --git a/sql/set_var.h b/sql/set_var.h
index 58ae53190e0..946341c4559 100644
--- a/sql/set_var.h
+++ b/sql/set_var.h
@@ -343,6 +343,26 @@ public:
 };
 
 
+class sys_var_thd_table_type :public sys_var_thd
+{
+protected:
+  ulong SV::*offset;
+public:
+  sys_var_thd_table_type(const char *name_arg, ulong SV::*offset_arg)
+    :sys_var_thd(name_arg), offset(offset_arg)
+  {}
+  bool check(THD *thd, set_var *var);
+SHOW_TYPE type() { return SHOW_CHAR; }
+  bool check_update_type(Item_result type)
+  {
+    return type != STRING_RESULT;		/* Only accept strings */
+  }
+  void set_default(THD *thd, enum_var_type type);
+  bool update(THD *thd, set_var *var);
+  byte *value_ptr(THD *thd, enum_var_type type, LEX_STRING *base);
+};
+
+
 class sys_var_thd_bit :public sys_var_thd
 {
   sys_update_func update_func;