1 files changed, 16 insertions, 0 deletions
diff --git a/sql/sys_vars.h b/sql/sys_vars.h
index c4855ef4fd3..fbc48573487 100644
--- a/sql/sys_vars.h
+++ b/sql/sys_vars.h
@@ -1599,6 +1599,22 @@ public:
   { return type != STRING_RESULT; }
 };
 
+
+class Sys_var_tx_isolation: public Sys_var_enum
+{
+public:
+  Sys_var_tx_isolation(const char *name_arg,
+          const char *comment, int flag_args, ptrdiff_t off, size_t size,
+          CMD_LINE getopt,
+          const char *values[], uint def_val, PolyLock *lock,
+          enum binlog_status_enum binlog_status_arg,
+          on_check_function on_check_func)
+    :Sys_var_enum(name_arg, comment, flag_args, off, size, getopt,
+                  values, def_val, lock, binlog_status_arg, on_check_func)
+  {}
+  virtual bool session_update(THD *thd, set_var *var);
+};
+
 /****************************************************************************
   Used templates
 ****************************************************************************/