-- 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_temp_tables -- -- Lists all normalized statements that use temporary tables -- ordered by number of on disk temporary tables descending first, -- then by the number of memory tables. -- -- mysql> select * from statements_with_temp_tables limit 1\G -- *************************** 1. row *************************** -- query: SELECT * FROM `schema_object_o ... MA` , `information_schema` ... -- db: sys -- exec_count: 2 -- total_latency: 16.75 s -- memory_tmp_tables: 378 -- disk_tmp_tables: 66 -- avg_tmp_tables_per_query: 189 -- tmp_tables_to_disk_pct: 17 -- 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_temp_tables ( query, db, exec_count, total_latency, memory_tmp_tables, disk_tmp_tables, avg_tmp_tables_per_query, tmp_tables_to_disk_pct, first_seen, last_seen, digest ) AS SELECT sys.format_statement(DIGEST_TEXT) AS query, SCHEMA_NAME as db, COUNT_STAR AS exec_count, sys.format_time(SUM_TIMER_WAIT) as total_latency, SUM_CREATED_TMP_TABLES AS memory_tmp_tables, SUM_CREATED_TMP_DISK_TABLES AS disk_tmp_tables, ROUND(IFNULL(SUM_CREATED_TMP_TABLES / NULLIF(COUNT_STAR, 0), 0)) AS avg_tmp_tables_per_query, ROUND(IFNULL(SUM_CREATED_TMP_DISK_TABLES / NULLIF(SUM_CREATED_TMP_TABLES, 0), 0) * 100) AS tmp_tables_to_disk_pct, FIRST_SEEN as first_seen, LAST_SEEN as last_seen, DIGEST AS digest FROM performance_schema.events_statements_summary_by_digest WHERE SUM_CREATED_TMP_TABLES > 0 ORDER BY SUM_CREATED_TMP_DISK_TABLES DESC, SUM_CREATED_TMP_TABLES DESC;