-- 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: statements_with_sorting -- -- Lists all normalized statements that have done sorts, -- ordered by total_latency descending. -- -- mysql> select * from statements_with_sorting limit 1\G -- *************************** 1. row *************************** -- query: SELECT * FROM `schema_object_o ... MA` , `information_schema` ... -- db: sys -- exec_count: 2 -- total_latency: 16.75 s -- sort_merge_passes: 0 -- avg_sort_merges: 0 -- sorts_using_scans: 12 -- sort_using_range: 0 -- rows_sorted: 168 -- avg_rows_sorted: 84 -- first_seen: 2014-03-07 13:13:41 -- last_seen: 2014-03-07 13:13:48 -- digest: 54f9bd520f0bbf15db0c2ed93386bec9 -- CREATE OR REPLACE ALGORITHM = MERGE DEFINER = 'root'@'localhost' SQL SECURITY INVOKER VIEW statements_with_sorting ( query, db, exec_count, total_latency, sort_merge_passes, avg_sort_merges, sorts_using_scans, sort_using_range, rows_sorted, avg_rows_sorted, first_seen, last_seen, digest ) AS SELECT sys.format_statement(DIGEST_TEXT) AS query, SCHEMA_NAME db, COUNT_STAR AS exec_count, sys.format_time(SUM_TIMER_WAIT) AS total_latency, SUM_SORT_MERGE_PASSES AS sort_merge_passes, ROUND(IFNULL(SUM_SORT_MERGE_PASSES / NULLIF(COUNT_STAR, 0), 0)) AS avg_sort_merges, SUM_SORT_SCAN AS sorts_using_scans, SUM_SORT_RANGE AS sort_using_range, SUM_SORT_ROWS AS rows_sorted, ROUND(IFNULL(SUM_SORT_ROWS / NULLIF(COUNT_STAR, 0), 0)) AS avg_rows_sorted, FIRST_SEEN as first_seen, LAST_SEEN as last_seen, DIGEST AS digest FROM performance_schema.events_statements_summary_by_digest WHERE SUM_SORT_ROWS > 0 ORDER BY SUM_TIMER_WAIT DESC;