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66 lines
2.2 KiB
SQL
66 lines
2.2 KiB
SQL
-- Copyright (c) 2014, 2015, Oracle and/or its affiliates. All rights reserved.
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--
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-- This program is free software; you can redistribute it and/or modify
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-- it under the terms of the GNU General Public License as published by
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-- the Free Software Foundation; version 2 of the License.
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--
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-- This program is distributed in the hope that it will be useful,
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-- but WITHOUT ANY WARRANTY; without even the implied warranty of
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-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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-- GNU General Public License for more details.
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--
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-- You should have received a copy of the GNU General Public License
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-- along with this program; if not, write to the Free Software
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-- Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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DROP FUNCTION IF EXISTS ps_thread_id;
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DELIMITER $$
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CREATE DEFINER='mariadb.sys'@'localhost' FUNCTION ps_thread_id (
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in_connection_id BIGINT UNSIGNED
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) RETURNS BIGINT UNSIGNED
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COMMENT '
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Description
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-----------
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Return the Performance Schema THREAD_ID for the specified connection ID.
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Parameters
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-----------
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in_connection_id (BIGINT UNSIGNED):
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The id of the connection to return the thread id for. If NULL, the current
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connection thread id is returned.
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Example
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-----------
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mysql> SELECT sys.ps_thread_id(79);
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+----------------------+
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| sys.ps_thread_id(79) |
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+----------------------+
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| 98 |
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+----------------------+
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1 row in set (0.00 sec)
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mysql> SELECT sys.ps_thread_id(CONNECTION_ID());
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+-----------------------------------+
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| sys.ps_thread_id(CONNECTION_ID()) |
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+-----------------------------------+
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| 98 |
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+-----------------------------------+
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1 row in set (0.00 sec)
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'
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SQL SECURITY INVOKER
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NOT DETERMINISTIC
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READS SQL DATA
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BEGIN
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RETURN (SELECT THREAD_ID
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FROM `performance_schema`.`threads`
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WHERE PROCESSLIST_ID = IFNULL(in_connection_id, CONNECTION_ID())
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);
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END$$
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DELIMITER ;
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