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c2b6916393
* it isn't "pfs" function, don't call it Item_func_pfs, don't use item_pfsfunc.* * tests don't depend on performance schema, put in the main suite * inherit from Item_str_ascii_func * use connection collation, not utf8mb3_general_ci * set result length in fix_length_and_dec * do not set maybe_null * use my_snprintf() where possible * don't set m_value.ptr on every invocation * update sys schema to use the format_pico_time() * len must be size_t (compilation error on Windows) * the correct function name for double->double is fabs() * drop volatile hack
103 lines
3.5 KiB
SQL
103 lines
3.5 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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--
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-- View: statement_analysis
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--
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-- Lists a normalized statement view with aggregated statistics,
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-- mimics the MySQL Enterprise Monitor Query Analysis view,
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-- ordered by the total execution time per normalized statement
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--
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-- mysql> select- * from statement_analysis limit 1\G
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-- *************************** 1. row--**************************
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-- query: SELECT * FROM `schema_object_o ... MA` , `information_schema` ...
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-- db: sys
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-- full_scan: *
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-- exec_count: 2
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-- err_count: 0
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-- warn_count: 0
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-- total_latency: 16.75 s
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-- max_latency: 16.57 s
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-- avg_latency: 8.38 s
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-- lock_latency: 16.69 s
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-- rows_sent: 84
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-- rows_sent_avg: 42
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-- rows_examined: 20012
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-- rows_affected: 0
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-- rows_affected_avg: 0
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-- rows_examined_avg: 10006
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-- tmp_tables: 378
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-- tmp_disk_tables: 66
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-- rows_sorted: 168
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-- sort_merge_passes: 0
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-- digest: 54f9bd520f0bbf15db0c2ed93386bec9
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-- first_seen: 2014-03-07 13:13:41
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-- last_seen: 2014-03-07 13:13:48
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--
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CREATE OR REPLACE
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ALGORITHM = MERGE
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DEFINER = 'mariadb.sys'@'localhost'
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SQL SECURITY INVOKER
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VIEW statement_analysis (
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query,
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db,
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full_scan,
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exec_count,
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err_count,
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warn_count,
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total_latency,
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max_latency,
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avg_latency,
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lock_latency,
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rows_sent,
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rows_sent_avg,
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rows_examined,
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rows_examined_avg,
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rows_affected,
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rows_affected_avg,
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tmp_tables,
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tmp_disk_tables,
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rows_sorted,
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sort_merge_passes,
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digest,
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first_seen,
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last_seen
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) AS
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SELECT sys.format_statement(DIGEST_TEXT) AS query,
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SCHEMA_NAME AS db,
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IF(SUM_NO_GOOD_INDEX_USED > 0 OR SUM_NO_INDEX_USED > 0, '*', '') AS full_scan,
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COUNT_STAR AS exec_count,
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SUM_ERRORS AS err_count,
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SUM_WARNINGS AS warn_count,
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format_pico_time(SUM_TIMER_WAIT) AS total_latency,
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format_pico_time(MAX_TIMER_WAIT) AS max_latency,
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format_pico_time(AVG_TIMER_WAIT) AS avg_latency,
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format_pico_time(SUM_LOCK_TIME) AS lock_latency,
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SUM_ROWS_SENT AS rows_sent,
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ROUND(IFNULL(SUM_ROWS_SENT / NULLIF(COUNT_STAR, 0), 0)) AS rows_sent_avg,
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SUM_ROWS_EXAMINED AS rows_examined,
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ROUND(IFNULL(SUM_ROWS_EXAMINED / NULLIF(COUNT_STAR, 0), 0)) AS rows_examined_avg,
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SUM_ROWS_AFFECTED AS rows_affected,
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ROUND(IFNULL(SUM_ROWS_AFFECTED / NULLIF(COUNT_STAR, 0), 0)) AS rows_affected_avg,
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SUM_CREATED_TMP_TABLES AS tmp_tables,
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SUM_CREATED_TMP_DISK_TABLES AS tmp_disk_tables,
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SUM_SORT_ROWS AS rows_sorted,
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SUM_SORT_MERGE_PASSES AS sort_merge_passes,
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DIGEST AS digest,
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FIRST_SEEN AS first_seen,
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LAST_SEEN as last_seen
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FROM performance_schema.events_statements_summary_by_digest
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ORDER BY SUM_TIMER_WAIT DESC;
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