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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 */
/*
* View: schema_index_statistics
*
* Statistics around indexes.
*
* Ordered by the total wait time descending - top indexes are most contended.
*
* mysql> select * from schema_index_statistics limit 5;
* +------------------+-------------+------------+---------------+----------------+---------------+----------------+--------------+----------------+--------------+----------------+
* | table_schema | table_name | index_name | rows_selected | select_latency | rows_inserted | insert_latency | rows_updated | update_latency | rows_deleted | delete_latency |
* +------------------+-------------+------------+---------------+----------------+---------------+----------------+--------------+----------------+--------------+----------------+
* | mem | mysqlserver | PRIMARY | 6208 | 108.27 ms | 0 | 0 ps | 5470 | 1.47 s | 0 | 0 ps |
* | mem | innodb | PRIMARY | 4666 | 76.27 ms | 0 | 0 ps | 4454 | 571.47 ms | 0 | 0 ps |
* | mem | connection | PRIMARY | 1064 | 20.98 ms | 0 | 0 ps | 1064 | 457.30 ms | 0 | 0 ps |
* | mem | environment | PRIMARY | 5566 | 151.17 ms | 0 | 0 ps | 694 | 252.57 ms | 0 | 0 ps |
* | mem | querycache | PRIMARY | 1698 | 27.99 ms | 0 | 0 ps | 1698 | 371.72 ms | 0 | 0 ps |
* +------------------+-------------+------------+---------------+----------------+---------------+----------------+--------------+----------------+--------------+----------------+
*
*/
CREATE OR REPLACE
ALGORITHM = MERGE
DEFINER = 'root'@'localhost'
SQL SECURITY INVOKER
VIEW schema_index_statistics (
table_schema,
table_name,
index_name,
rows_selected,
select_latency,
rows_inserted,
insert_latency,
rows_updated,
update_latency,
rows_deleted,
delete_latency
) AS
SELECT OBJECT_SCHEMA AS table_schema,
OBJECT_NAME AS table_name,
INDEX_NAME as index_name,
COUNT_FETCH AS rows_selected,
sys.format_time(SUM_TIMER_FETCH) AS select_latency,
COUNT_INSERT AS rows_inserted,
sys.format_time(SUM_TIMER_INSERT) AS insert_latency,
COUNT_UPDATE AS rows_updated,
sys.format_time(SUM_TIMER_UPDATE) AS update_latency,
COUNT_DELETE AS rows_deleted,
sys.format_time(SUM_TIMER_INSERT) AS delete_latency
FROM performance_schema.table_io_waits_summary_by_index_usage
WHERE index_name IS NOT NULL
ORDER BY sum_timer_wait DESC;
/*
* View: x$schema_index_statistics
*
* Statistics around indexes.
*
* Ordered by the total wait time descending - top indexes are most contended.
*
* mysql> SELECT * FROM x$schema_index_statistics LIMIT 5;
* +---------------+----------------------+-------------------+---------------+----------------+---------------+----------------+--------------+----------------+--------------+----------------+
* | table_schema | table_name | index_name | rows_selected | select_latency | rows_inserted | insert_latency | rows_updated | update_latency | rows_deleted | delete_latency |
* +---------------+----------------------+-------------------+---------------+----------------+---------------+----------------+--------------+----------------+--------------+----------------+
* | common_schema | _global_sql_tokens | PRIMARY | 1886 | 1129676730 | 0 | 0 | 0 | 0 | 1878 | 0 |
* | common_schema | _script_statements | PRIMARY | 4606 | 4212160680 | 0 | 0 | 0 | 0 | 0 | 0 |
* | common_schema | _global_qs_variables | declaration_depth | 256 | 1650193090 | 0 | 0 | 32 | 1372148050 | 0 | 0 |
* | common_schema | _global_qs_variables | PRIMARY | 0 | 0 | 0 | 0 | 0 | 0 | 16 | 0 |
* | common_schema | metadata | PRIMARY | 5 | 76730810 | 0 | 0 | 4 | 114310170 | 0 | 0 |
* +---------------+----------------------+-------------------+---------------+----------------+---------------+----------------+--------------+----------------+--------------+----------------+
*
*/
CREATE OR REPLACE
ALGORITHM = MERGE
DEFINER = 'root'@'localhost'
SQL SECURITY INVOKER
VIEW x$schema_index_statistics (
table_schema,
table_name,
index_name,
rows_selected,
select_latency,
rows_inserted,
insert_latency,
rows_updated,
update_latency,
rows_deleted,
delete_latency
) AS
SELECT OBJECT_SCHEMA AS table_schema,
OBJECT_NAME AS table_name,
INDEX_NAME as index_name,
COUNT_FETCH AS rows_selected,
SUM_TIMER_FETCH AS select_latency,
COUNT_INSERT AS rows_inserted,
SUM_TIMER_INSERT AS insert_latency,
COUNT_UPDATE AS rows_updated,
SUM_TIMER_UPDATE AS update_latency,
COUNT_DELETE AS rows_deleted,
SUM_TIMER_INSERT AS delete_latency
FROM performance_schema.table_io_waits_summary_by_index_usage
WHERE index_name IS NOT NULL
ORDER BY sum_timer_wait DESC;
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