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/* Copyright (c) 2014, 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 */
DROP PROCEDURE IF EXISTS ps_setup_save;
DELIMITER $$
CREATE DEFINER='root'@'localhost' PROCEDURE ps_setup_save (
IN in_timeout INT
)
COMMENT '
Description
-----------
Saves the current configuration of Performance Schema,
so that you can alter the setup for debugging purposes,
but restore it to a previous state.
Use the companion procedure - ps_setup_reload_saved(), to
restore the saved config.
Requires the SUPER privilege for "SET sql_log_bin = 0;".
Parameters
-----------
None.
Example
-----------
mysql> CALL sys.ps_setup_save();
Query OK, 0 rows affected (0.08 sec)
mysql> UPDATE performance_schema.setup_instruments
-> SET enabled = \'YES\', timed = \'YES\';
Query OK, 547 rows affected (0.40 sec)
Rows matched: 784 Changed: 547 Warnings: 0
/* Run some tests that need more detailed instrumentation here */
mysql> CALL sys.ps_setup_reload_saved();
Query OK, 0 rows affected (0.32 sec)
'
SQL SECURITY INVOKER
NOT DETERMINISTIC
MODIFIES SQL DATA
BEGIN
DECLARE v_lock_result INT;
SET @log_bin := @@sql_log_bin;
SET sql_log_bin = 0;
SELECT GET_LOCK('sys.ps_setup_save', in_timeout) INTO v_lock_result;
IF v_lock_result THEN
DROP TEMPORARY TABLE IF EXISTS tmp_setup_actors;
DROP TEMPORARY TABLE IF EXISTS tmp_setup_consumers;
DROP TEMPORARY TABLE IF EXISTS tmp_setup_instruments;
DROP TEMPORARY TABLE IF EXISTS tmp_threads;
CREATE TEMPORARY TABLE tmp_setup_actors LIKE performance_schema.setup_actors;
CREATE TEMPORARY TABLE tmp_setup_consumers LIKE performance_schema.setup_consumers;
CREATE TEMPORARY TABLE tmp_setup_instruments LIKE performance_schema.setup_instruments;
CREATE TEMPORARY TABLE tmp_threads (THREAD_ID bigint unsigned NOT NULL PRIMARY KEY, INSTRUMENTED enum('YES','NO') NOT NULL);
INSERT INTO tmp_setup_actors SELECT * FROM performance_schema.setup_actors;
INSERT INTO tmp_setup_consumers SELECT * FROM performance_schema.setup_consumers;
INSERT INTO tmp_setup_instruments SELECT * FROM performance_schema.setup_instruments;
INSERT INTO tmp_threads SELECT THREAD_ID, INSTRUMENTED FROM performance_schema.threads;
ELSE
SIGNAL SQLSTATE VALUE '90000'
SET MESSAGE_TEXT = 'Could not lock the sys.ps_setup_save user lock, another thread has a saved configuration';
END IF;
SET sql_log_bin = @log_bin;
END$$
DELIMITER ;
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