text: -- Copyright (c) 2014, 2015, Oracle and/or its affiliates. All rights reserved.
  --
  -- This program is free software; you can redistribute it and/or modify
  -- it under the terms of the GNU General Public License as published by
  -- the Free Software Foundation; version 2 of the License.
  --
  -- This program is distributed in the hope that it will be useful,
  -- but WITHOUT ANY WARRANTY; without even the implied warranty of
  -- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  -- GNU General Public License for more details.
  --
  -- You should have received a copy of the GNU General Public License
  -- along with this program; if not, write to the Free Software
  -- Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  
  --
  -- View: ps_check_lost_instrumentation
  -- 
  -- Used to check whether Performance Schema is not able to monitor
  -- all runtime data - only returns variables that have lost instruments
  --
  -- mysql> select * from ps_check_lost_instrumentation;
  -- +----------------------------------------+----------------+
  -- | variable_name                          | variable_value |
  -- +----------------------------------------+----------------+
  -- | Performance_schema_file_handles_lost   | 101223         |
  -- | Performance_schema_file_instances_lost | 1231           |
  -- +----------------------------------------+----------------+
  --
  
  CREATE OR REPLACE
    ALGORITHM = MERGE
    DEFINER = 'mariadb.sys'@'localhost'
    SQL SECURITY INVOKER 
  VIEW ps_check_lost_instrumentation (
    variable_name,
    variable_value
  )
  AS
  SELECT variable_name, variable_value
    FROM information_schema.global_status
   WHERE variable_name LIKE 'perf%lost'
     AND variable_value > 0;
  