MDEV-33501 Extend query_response_time plugin to be compatible with Pe…

…rcona server

This is to update the plugin to be compatible with Percona's
query_response_time plugin, with some additions.
Some of the tests are taken from Percona server.

- Added plugins QUERY_RESPONSE_TIME_READ, QUERY_RESPONSE_TIME_WRITE and
  QUERY_RESPONSE_TIME_READ_WRITE.
- Added option query_response_time_session_stats, with possible values
  GLOBAL, ON or OFF, to the query_response_time plugin.

Notes:
- All modules are dependent on QUERY_RESPONSE_READ_TIME. This must always
  be enabled if any of the other modules are used.
  This will be auto-enabled in the near future.
- Accounting are done per statement. Stored functions are regarded
  as part of the original statement.
- For stored procedures the accounting are done per statement executed
  in the stored procedure. CALL will not be accounted because of this.
- FLUSH commands will not be accounted for. This is to ensure that
  FLUSH QUERY_RESPONSE_TIME is not part of the statistics.
  (This helps when testing with mtr and otherwise).
- FLUSH QUERY_RESPONSE_TIME_READ and FLUSH QUERY_RESPONSE_TIME_READ
  only resets the corresponding status.
- FLUSH QUERY_RESPONSE_TIME and FLUSH QUERY_RESPONSE_TIME_READ_WRITE or
  changing the value of query_response_time_range_base followed by
  any FLUSH of QUERY_RESPOSNSE_TIME resets all status.

plugin/query_response_time/mysql-test/query_response_time/basic.result

@@ -2,6 +2,7 @@ SHOW VARIABLES WHERE VARIABLE_NAME LIKE 'query_response_time%' AND VARIABLE_NAME
 Variable_name	Value
 query_response_time_flush	OFF
 query_response_time_range_base	10
+query_response_time_session_stats	GLOBAL
 query_response_time_stats	OFF
 SHOW CREATE TABLE INFORMATION_SCHEMA.QUERY_RESPONSE_TIME;
 Table	Create Table
@@ -18,6 +19,27 @@ PLUGIN_AUTHOR	Percona and Sergey Vojtovich
 PLUGIN_DESCRIPTION	Query Response Time Distribution INFORMATION_SCHEMA Plugin
 PLUGIN_LICENSE	GPL
 PLUGIN_MATURITY	Stable
+PLUGIN_NAME	QUERY_RESPONSE_TIME_READ
+PLUGIN_VERSION	1.0
+PLUGIN_TYPE	INFORMATION SCHEMA
+PLUGIN_AUTHOR	Percona and Sergey Vojtovich
+PLUGIN_DESCRIPTION	Query Response Time Distribution INFORMATION_SCHEMA Plugin
+PLUGIN_LICENSE	GPL
+PLUGIN_MATURITY	Stable
+PLUGIN_NAME	QUERY_RESPONSE_TIME_WRITE
+PLUGIN_VERSION	1.0
+PLUGIN_TYPE	INFORMATION SCHEMA
+PLUGIN_AUTHOR	Percona and Sergey Vojtovich
+PLUGIN_DESCRIPTION	Query Response Time Distribution INFORMATION_SCHEMA Plugin
+PLUGIN_LICENSE	GPL
+PLUGIN_MATURITY	Stable
+PLUGIN_NAME	QUERY_RESPONSE_TIME_READ_WRITE
+PLUGIN_VERSION	1.0
+PLUGIN_TYPE	INFORMATION SCHEMA
+PLUGIN_AUTHOR	Monty
+PLUGIN_DESCRIPTION	Query Response Time Distribution INFORMATION_SCHEMA Plugin
+PLUGIN_LICENSE	GPL
+PLUGIN_MATURITY	Stable
 PLUGIN_NAME	QUERY_RESPONSE_TIME_AUDIT
 PLUGIN_VERSION	1.0
 PLUGIN_TYPE	AUDIT

plugin/query_response_time/mysql-test/query_response_time/query_response_time-check.inc

@@ -0,0 +1,32 @@
+SELECT * FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME WHERE count != 0;
+SELECT * FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME_READ WHERE count != 0;
+SELECT * FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME_WRITE WHERE count != 0;
+
+--disable_query_log
+
+--let $assert_text= The sum of query counts in read and write tables must be equal to query count of the common table
+SELECT SUM(COUNT) INTO @common_count FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME;
+SELECT SUM(COUNT) INTO @ro_count FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME_READ;
+SELECT SUM(COUNT) INTO @rw_count FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME_WRITE;
+--let $assert_cond= @common_count = @ro_count + @rw_count;
+--source include/assert.inc
+
+#
+# Bug 1552428: table contents should not depend on the table case name
+#
+--let $assert_text= QUERY_RESPONSE_TIME query counts must be equal regardless of the table name case
+SELECT SUM(COUNT) INTO @common_count_lc FROM information_schema.query_response_time;
+--let $assert_cond= @common_count = @common_count_lc
+--source include/assert.inc
+
+--let $assert_text= QUERY_RESPONSE_TIME_READ query counts must be equal regardless of the table name case
+SELECT SUM(COUNT) INTO @ro_count_lc FROM information_schema.query_response_time_read;
+--let $assert_cond= @ro_count = @ro_count_lc
+--source include/assert.inc
+
+--let $assert_text= QUERY_RESPONSE_TIME_WRITE query counts must be equal regardless of the table name case
+SELECT SUM(COUNT) INTO @rw_count_lc FROM information_schema.query_response_time_write;
+--let $assert_cond= @rw_count = @rw_count_lc
+--source include/assert.inc
+
+--enable_query_log

plugin/query_response_time/mysql-test/query_response_time/query_response_time-rw-begin.inc

@@ -0,0 +1,15 @@
+--disable_query_log
+--disable_result_log
+SET GLOBAL QUERY_RESPONSE_TIME_STATS = 0;
+SET SESSION QUERY_RESPONSE_TIME_EXEC_TIME_DEBUG = 500000;
+FLUSH QUERY_RESPONSE_TIME;
+--enable_query_log
+--enable_result_log
+--source query_response_time-check.inc
+--disable_query_log
+--disable_result_log
+SET GLOBAL QUERY_RESPONSE_TIME_STATS = 1;
+FLUSH QUERY_RESPONSE_TIME;
+--enable_query_log
+--enable_result_log
+--echo ------------------Test body begin--------------------

plugin/query_response_time/mysql-test/query_response_time/query_response_time-rw-end.inc

@@ -0,0 +1,6 @@
+--echo ------------------Test body end----------------------
+--disable_query_log
+SET GLOBAL QUERY_RESPONSE_TIME_STATS = 0;
+SET SESSION QUERY_RESPONSE_TIME_EXEC_TIME_DEBUG = DEFAULT;
+--enable_query_log
+--source query_response_time-check.inc