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-- 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: user_summary_by_statement_type
--
-- Summarizes the types of statements executed by each user.
--
-- When the user found is NULL, it is assumed to be a "background" thread.
--
-- mysql> select * from user_summary_by_statement_type;
-- +------+----------------------+--------+---------------+-------------+--------------+-----------+---------------+---------------+------------+
-- | user | statement | total | total_latency | max_latency | lock_latency | rows_sent | rows_examined | rows_affected | full_scans |
-- +------+----------------------+--------+---------------+-------------+--------------+-----------+---------------+---------------+------------+
-- | root | create_view | 2063 | 00:05:04.20 | 463.58 ms | 1.42 s | 0 | 0 | 0 | 0 |
-- | root | select | 174 | 40.87 s | 28.83 s | 858.13 ms | 5212 | 157022 | 0 | 82 |
-- | root | stmt | 6645 | 15.31 s | 491.78 ms | 0 ps | 0 | 0 | 7951 | 0 |
-- | root | call_procedure | 17 | 4.78 s | 1.02 s | 37.94 ms | 0 | 0 | 19 | 0 |
-- | root | create_table | 19 | 3.04 s | 431.71 ms | 0 ps | 0 | 0 | 0 | 0 |
-- ...
-- +------+----------------------+--------+---------------+-------------+--------------+-----------+---------------+---------------+------------+
--
CREATE OR REPLACE
ALGORITHM = MERGE
DEFINER = 'mariadb.sys'@'localhost'
SQL SECURITY INVOKER
VIEW user_summary_by_statement_type (
user,
statement,
total,
total_latency,
max_latency,
lock_latency,
rows_sent,
rows_examined,
rows_affected,
full_scans
) AS
SELECT IF(user IS NULL, 'background', user) AS user,
SUBSTRING_INDEX(event_name, '/', -1) AS statement,
count_star AS total,
sys.format_time(sum_timer_wait) AS total_latency,
sys.format_time(max_timer_wait) AS max_latency,
sys.format_time(sum_lock_time) AS lock_latency,
sum_rows_sent AS rows_sent,
sum_rows_examined AS rows_examined,
sum_rows_affected AS rows_affected,
sum_no_index_used + sum_no_good_index_used AS full_scans
FROM performance_schema.events_statements_summary_by_user_by_event_name
WHERE sum_timer_wait != 0
ORDER BY user, sum_timer_wait DESC;
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