mariadb/scripts/sys_schema/procedures/ps_setup_enable_consumer.sql

74 lines
2.4 KiB
SQL

-- 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
DROP PROCEDURE IF EXISTS ps_setup_enable_consumer;
DELIMITER $$
CREATE DEFINER='mariadb.sys'@'localhost' PROCEDURE ps_setup_enable_consumer (
IN consumer VARCHAR(128)
)
COMMENT '
Description
-----------
Enables consumers within Performance Schema
matching the input pattern.
Parameters
-----------
consumer (VARCHAR(128)):
A LIKE pattern match (using "%consumer%") of consumers to enable
Example
-----------
To enable all consumers:
mysql> CALL sys.ps_setup_enable_consumer(\'\');
+-------------------------+
| summary |
+-------------------------+
| Enabled 10 consumers |
+-------------------------+
1 row in set (0.02 sec)
Query OK, 0 rows affected (0.02 sec)
To enable just "waits" consumers:
mysql> CALL sys.ps_setup_enable_consumer(\'waits\');
+-----------------------+
| summary |
+-----------------------+
| Enabled 3 consumers |
+-----------------------+
1 row in set (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
'
SQL SECURITY INVOKER
NOT DETERMINISTIC
MODIFIES SQL DATA
BEGIN
UPDATE performance_schema.setup_consumers
SET enabled = 'YES'
WHERE name LIKE CONCAT('%', consumer, '%');
SELECT CONCAT('Enabled ', @rows := ROW_COUNT(), ' consumer', IF(@rows != 1, 's', '')) AS summary;
END$$
DELIMITER ;