Joomla! Debug Console

Session

{
    "__default": {
        "session": {
            "counter": 1,
            "timer": {
                "start": 1601078749,
                "last": 1601078749,
                "now": 1601078749
            },
            "token": "EAddSKQkJWwFjUdS4X4VR8DHzR71o2xr"
        },
        "registry": {},
        "user": {
            "id": 0,
            "name": null,
            "username": null,
            "email": null,
            "password": null,
            "password_clear": "",
            "block": null,
            "sendEmail": 0,
            "registerDate": null,
            "lastvisitDate": null,
            "activation": null,
            "params": null,
            "groups": [],
            "guest": 1,
            "lastResetTime": null,
            "resetCount": null,
            "requireReset": null,
            "aid": 0
        }
    }
}

Profile Information

Memory Usage

Database Queries

21 Queries Logged 180.77 ms

Query Time: 0.25 ms Query memory: 0.019 MB Memory before query: 2.976 MB Rows returned: 0

SELECT `data`

  FROM `qerl4_session`

  WHERE `session_id` = 'c1nou77o2l9nnt24fjpv0rvlk0'

Explain

id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	qerl4_session	const	PRIMARY	PRIMARY	766	const	1

Profile

Status	Duration
starting	0.04 ms
checking permissions	0.01 ms
Opening tables	0.02 ms
System lock	0.01 ms
init	0.02 ms
optimizing	0.01 ms
statistics	0.05 ms
preparing	0.00 ms
executing	0.01 ms
end	0.00 ms
query end	0.00 ms
closing tables	0.01 ms
freeing items	0.01 ms
logging slow query	0.00 ms
cleaning up	0.00 ms

Call Stack

#	Caller	File and line number
14	JDatabaseDriverMysqli->execute()	JROOT/libraries/joomla/database/driver.php:1728
13	JDatabaseDriver->loadResult()	JROOT/libraries/joomla/session/storage/database.php:44
12	JSessionStorageDatabase->read()	Same as call in the line below.
11	session_start()	JROOT/libraries/joomla/session/handler/native.php:258
10	JSessionHandlerNative->doSessionStart()	JROOT/libraries/joomla/session/handler/native.php:49
9	JSessionHandlerNative->start()	JROOT/libraries/joomla/session/handler/joomla.php:81
8	JSessionHandlerJoomla->start()	JROOT/libraries/joomla/session/session.php:636
7	JSession->_start()	JROOT/libraries/joomla/session/session.php:596
6	JSession->start()	JROOT/libraries/cms/application/cms.php:748
5	JApplicationCms->loadSession()	JROOT/libraries/cms/application/cms.php:131
4	JApplicationCms->__construct()	JROOT/libraries/cms/application/site.php:63
3	JApplicationSite->__construct()	JROOT/libraries/cms/application/cms.php:404
2	JApplicationCms::getInstance()	JROOT/libraries/joomla/factory.php:125
1	JFactory::getApplication()	JROOT/index.php:46

[Add xdebug.file_link_format directive to your php.ini file to have links for files.]

Query Time: 90.89 ms After last query: 1.53 ms Query memory: 0.008 MB Memory before query: 3.182 MB

DELETE 

  FROM `qerl4_session`

  WHERE `time` < '1601077849'

Explain

EXPLAIN not possible on query: DELETE FROM `qerl4_session` WHERE `time` < '1601077849'

Profile

Status	Duration
starting	0.01 ms
checking permissions	0.00 ms
Opening tables	0.01 ms
System lock	0.00 ms
init	0.03 ms
updating	0.12 ms
end	0.01 ms
Waiting for query cache lock	0.00 ms
end	0.01 ms
query end	90.59 ms
closing tables	0.01 ms
freeing items	0.02 ms
logging slow query	0.00 ms
cleaning up	0.00 ms

Call Stack

#	Caller	File and line number
6	JDatabaseDriverMysqli->execute()	JROOT/libraries/cms/application/cms.php:765
5	JApplicationCms->loadSession()	JROOT/libraries/cms/application/cms.php:131
4	JApplicationCms->__construct()	JROOT/libraries/cms/application/site.php:63
3	JApplicationSite->__construct()	JROOT/libraries/cms/application/cms.php:404
2	JApplicationCms::getInstance()	JROOT/libraries/joomla/factory.php:125
1	JFactory::getApplication()	JROOT/index.php:46

[Add xdebug.file_link_format directive to your php.ini file to have links for files.]

Query Time: 0.28 ms After last query: 0.16 ms Query memory: 0.012 MB Memory before query: 3.194 MB Rows returned: 0

SELECT `session_id`

  FROM `qerl4_session`

  WHERE `session_id` = 'c1nou77o2l9nnt24fjpv0rvlk0' 
  LIMIT 1

Explain

id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	qerl4_session	const	PRIMARY	PRIMARY	766	const	1	Using index

Profile

Status	Duration
starting	0.03 ms
checking permissions	0.01 ms
Opening tables	0.03 ms
System lock	0.01 ms
init	0.01 ms
optimizing	0.01 ms
statistics	0.03 ms
preparing	0.00 ms
executing	0.01 ms
end	0.00 ms
query end	0.00 ms
closing tables	0.01 ms
freeing items	0.01 ms
logging slow query	0.00 ms
cleaning up	0.00 ms

Call Stack

#	Caller	File and line number
8	JDatabaseDriverMysqli->execute()	JROOT/libraries/joomla/database/driver.php:1728
7	JDatabaseDriver->loadResult()	JROOT/libraries/cms/application/cms.php:176
6	JApplicationCms->checkSession()	JROOT/libraries/cms/application/cms.php:774
5	JApplicationCms->loadSession()	JROOT/libraries/cms/application/cms.php:131
4	JApplicationCms->__construct()	JROOT/libraries/cms/application/site.php:63
3	JApplicationSite->__construct()	JROOT/libraries/cms/application/cms.php:404
2	JApplicationCms::getInstance()	JROOT/libraries/joomla/factory.php:125
1	JFactory::getApplication()	JROOT/index.php:46

[Add xdebug.file_link_format directive to your php.ini file to have links for files.]

Query Time: 41.17 ms After last query: 0.14 ms Query memory: 0.009 MB Memory before query: 3.207 MB

INSERT INTO `qerl4_session`
(`session_id`, `client_id`, `time`) 
  VALUES 
('c1nou77o2l9nnt24fjpv0rvlk0', 0, '1601078749')

Explain

EXPLAIN not possible on query: INSERT INTO `qerl4_session` (`session_id`, `client_id`, `time`) VALUES ('c1nou77o2l9nnt24fjpv0rvlk0', 0, '1601078749')

Profile

Status	Duration
starting	0.03 ms
checking permissions	0.01 ms
Opening tables	0.03 ms
System lock	0.01 ms
init	0.01 ms
update	0.05 ms
Waiting for query cache lock	0.00 ms
update	0.00 ms
end	0.00 ms
query end	40.87 ms
closing tables	0.01 ms
freeing items	0.02 ms
logging slow query	0.00 ms
cleaning up	0.00 ms

Call Stack

#	Caller	File and line number
7	JDatabaseDriverMysqli->execute()	JROOT/libraries/cms/application/cms.php:208
6	JApplicationCms->checkSession()	JROOT/libraries/cms/application/cms.php:774
5	JApplicationCms->loadSession()	JROOT/libraries/cms/application/cms.php:131
4	JApplicationCms->__construct()	JROOT/libraries/cms/application/site.php:63
3	JApplicationSite->__construct()	JROOT/libraries/cms/application/cms.php:404
2	JApplicationCms::getInstance()	JROOT/libraries/joomla/factory.php:125
1	JFactory::getApplication()	JROOT/index.php:46

[Add xdebug.file_link_format directive to your php.ini file to have links for files.]

Query Time: 0.48 ms After last query: 5.73 ms Query memory: 0.017 MB Memory before query: 3.577 MB Rows returned: 31

SELECT extension_id AS id, element AS "option", params, enabled

  FROM qerl4_extensions

  WHERE `type` = 'component'

Explain

id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	qerl4_extensions	ref	extension	extension	82	const	31	Using where

Profile

Status	Duration
starting	0.04 ms
checking permissions	0.01 ms
Opening tables	0.01 ms
System lock	0.01 ms
init	0.02 ms
optimizing	0.01 ms
statistics	0.05 ms
preparing	0.01 ms
executing	0.00 ms
Sending data	0.19 ms
end	0.01 ms
query end	0.00 ms
closing tables	0.01 ms
freeing items	0.01 ms
logging slow query	0.00 ms
cleaning up	0.00 ms

Call Stack

#	Caller	File and line number
10	JDatabaseDriverMysqli->execute()	JROOT/libraries/joomla/database/driver.php:1689
9	JDatabaseDriver->loadObjectList()	Same as call in the line below.
8	call_user_func_array()	JROOT/libraries/joomla/cache/controller/callback.php:152
7	JCacheControllerCallback->get()	JROOT/libraries/cms/component/helper.php:448
6	JComponentHelper::load()	JROOT/libraries/cms/component/helper.php:43
5	JComponentHelper::getComponent()	JROOT/libraries/cms/component/helper.php:120
4	JComponentHelper::getParams()	JROOT/libraries/cms/application/site.php:584
3	JApplicationSite->initialiseApp()	JROOT/libraries/cms/application/site.php:209
2	JApplicationSite->doExecute()	JROOT/libraries/cms/application/cms.php:257
1	JApplicationCms->execute()	JROOT/index.php:49

[Add xdebug.file_link_format directive to your php.ini file to have links for files.]

Query Time: 0.39 ms After last query: 3.10 ms Query memory: 0.014 MB Memory before query: 3.781 MB Rows returned: 2

SELECT b.id

  FROM qerl4_usergroups AS a

  LEFT JOIN qerl4_usergroups AS b 
  ON b.lft <= a.lft 
  AND b.rgt >= a.rgt

  WHERE a.id = 9

Explain

id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	a	const	PRIMARY	PRIMARY	4	const	1
1	SIMPLE	b	range	idx_usergroup_nested_set_lookup	idx_usergroup_nested_set_lookup	4	NULL	3	Using where; Using index

Profile

Status	Duration
starting	0.05 ms
checking permissions	0.00 ms
checking permissions	0.00 ms
Opening tables	0.02 ms
System lock	0.01 ms
init	0.02 ms
optimizing	0.01 ms
statistics	0.08 ms
preparing	0.02 ms
executing	0.00 ms
Sending data	0.04 ms
end	0.01 ms
query end	0.00 ms
closing tables	0.01 ms
freeing items	0.01 ms
logging slow query	0.00 ms
cleaning up	0.00 ms

Call Stack

#	Caller	File and line number
10	JDatabaseDriverMysqli->execute()	JROOT/libraries/joomla/database/driver.php:1538
9	JDatabaseDriver->loadColumn()	JROOT/libraries/joomla/access/access.php:852
8	JAccess::getGroupsByUser()	JROOT/libraries/joomla/access/access.php:921
7	JAccess::getAuthorisedViewLevels()	JROOT/libraries/joomla/user/user.php:453
6	JUser->getAuthorisedViewLevels()	JROOT/libraries/cms/plugin/helper.php:296
5	JPluginHelper::load()	JROOT/libraries/cms/plugin/helper.php:163
4	JPluginHelper::importPlugin()	JROOT/libraries/cms/application/site.php:589
3	JApplicationSite->initialiseApp()	JROOT/libraries/cms/application/site.php:209
2	JApplicationSite->doExecute()	JROOT/libraries/cms/application/cms.php:257
1	JApplicationCms->execute()	JROOT/index.php:49

[Add xdebug.file_link_format directive to your php.ini file to have links for files.]

Query Time: 0.22 ms After last query: 0.99 ms Query memory: 0.013 MB Memory before query: 3.838 MB Rows returned: 5

SELECT id, rules

  FROM `qerl4_viewlevels`

Explain

id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	qerl4_viewlevels	ALL	NULL	NO INDEX KEY COULD BE USED	NULL	NULL	5

Profile

Status	Duration
starting	0.03 ms
checking permissions	0.01 ms
Opening tables	0.01 ms
System lock	0.01 ms
init	0.01 ms
optimizing	0.00 ms
statistics	0.01 ms
preparing	0.01 ms
executing	0.00 ms
Sending data	0.04 ms
end	0.00 ms
query end	0.00 ms
closing tables	0.01 ms
freeing items	0.01 ms
logging slow query	0.00 ms
cleaning up	0.00 ms

Call Stack

#	Caller	File and line number
9	JDatabaseDriverMysqli->execute()	JROOT/libraries/joomla/database/driver.php:1494
8	JDatabaseDriver->loadAssocList()	JROOT/libraries/joomla/access/access.php:938
7	JAccess::getAuthorisedViewLevels()	JROOT/libraries/joomla/user/user.php:453
6	JUser->getAuthorisedViewLevels()	JROOT/libraries/cms/plugin/helper.php:296
5	JPluginHelper::load()	JROOT/libraries/cms/plugin/helper.php:163
4	JPluginHelper::importPlugin()	JROOT/libraries/cms/application/site.php:589
3	JApplicationSite->initialiseApp()	JROOT/libraries/cms/application/site.php:209
2	JApplicationSite->doExecute()	JROOT/libraries/cms/application/cms.php:257
1	JApplicationCms->execute()	JROOT/index.php:49

[Add xdebug.file_link_format directive to your php.ini file to have links for files.]

Query Time: 0.82 ms After last query: 0.33 ms Query memory: 0.012 MB Memory before query: 3.857 MB Rows returned: 42

SELECT folder AS type, element AS name, params

  FROM qerl4_extensions

  WHERE enabled = 1 
  AND type ='plugin' 
  AND state IN (0,1) 
  AND access IN (1,1,5)

  ORDER BY ordering

Explain

id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	qerl4_extensions	ref	extension	extension	82	const	55	Using where; Using filesort

Profile

Status	Duration
starting	0.05 ms
checking permissions	0.01 ms
Opening tables	0.01 ms
System lock	0.01 ms
init	0.02 ms
optimizing	0.01 ms
statistics	0.04 ms
preparing	0.02 ms
executing	0.00 ms
Sorting result	0.26 ms
Sending data	0.21 ms
end	0.00 ms
query end	0.00 ms
closing tables	0.01 ms
freeing items	0.02 ms
logging slow query	0.00 ms
cleaning up	0.00 ms

Call Stack

#	Caller	File and line number
7	JDatabaseDriverMysqli->execute()	JROOT/libraries/joomla/database/driver.php:1689
6	JDatabaseDriver->loadObjectList()	JROOT/libraries/cms/plugin/helper.php:310
5	JPluginHelper::load()	JROOT/libraries/cms/plugin/helper.php:163
4	JPluginHelper::importPlugin()	JROOT/libraries/cms/application/site.php:589
3	JApplicationSite->initialiseApp()	JROOT/libraries/cms/application/site.php:209
2	JApplicationSite->doExecute()	JROOT/libraries/cms/application/cms.php:257
1	JApplicationCms->execute()	JROOT/index.php:49

[Add xdebug.file_link_format directive to your php.ini file to have links for files.]

Query Time: 0.42 ms After last query: 18.55 ms Query memory: 0.026 MB Memory before query: 5.162 MB Rows returned: 1

SELECT m.id, m.menutype, m.title, m.alias, m.note, m.path AS route, m.link, m.type, m.level, m.language,`m`.`browserNav`, m.access, m.params, m.home, m.img, m.template_style_id, m.component_id, m.parent_id,e.element as component

  FROM qerl4_menu AS m

  LEFT JOIN qerl4_extensions AS e 
  ON m.component_id = e.extension_id

  WHERE m.published = 1 
  AND m.parent_id > 0 
  AND m.client_id = 0

  ORDER BY m.lft

Explain

id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	m	range	idx_client_id_parent_id_alias_language	idx_client_id_parent_id_alias_language	5	NULL	1	Using where; Using filesort
1	SIMPLE	e	eq_ref	PRIMARY	PRIMARY	4	wdwc_regfff.m.component_id	1

Profile

Status	Duration
starting	0.08 ms
checking permissions	0.01 ms
checking permissions	0.00 ms
Opening tables	0.02 ms
System lock	0.01 ms
init	0.03 ms
optimizing	0.01 ms
statistics	0.05 ms
preparing	0.02 ms
executing	0.00 ms
Sorting result	0.05 ms
Sending data	0.06 ms
end	0.00 ms
query end	0.00 ms
closing tables	0.01 ms
freeing items	0.02 ms
logging slow query	0.00 ms
cleaning up	0.00 ms

Call Stack

#	Caller	File and line number
16	JDatabaseDriverMysqli->execute()	JROOT/libraries/joomla/database/driver.php:1689
15	JDatabaseDriver->loadObjectList()	JROOT/libraries/cms/menu/site.php:86
14	JMenuSite->load()	JROOT/libraries/cms/menu/menu.php:74
13	JMenu->__construct()	JROOT/libraries/cms/menu/site.php:57
12	JMenuSite->__construct()	JROOT/libraries/cms/menu/menu.php:133
11	JMenu::getInstance()	JROOT/libraries/cms/application/cms.php:435
10	JApplicationCms->getMenu()	JROOT/libraries/cms/application/site.php:272
9	JApplicationSite->getMenu()	JROOT/libraries/cms/router/site.php:57
8	JRouterSite->__construct()	JROOT/libraries/cms/router/router.php:196
7	JRouter::getInstance()	JROOT/libraries/cms/application/cms.php:531
6	JApplicationCms::getRouter()	JROOT/libraries/cms/application/site.php:407
5	JApplicationSite::getRouter()	JROOT/libraries/cms/application/cms.php:1097
4	JApplicationCms->route()	JROOT/libraries/cms/application/site.php:763
3	JApplicationSite->route()	JROOT/libraries/cms/application/site.php:215
2	JApplicationSite->doExecute()	JROOT/libraries/cms/application/cms.php:257
1	JApplicationCms->execute()	JROOT/index.php:49

[Add xdebug.file_link_format directive to your php.ini file to have links for files.]

Query Time: 0.31 ms After last query: 0.98 ms Query memory: 0.019 MB Memory before query: 5.309 MB Rows returned: 1

SELECT extension_id AS id, element AS "option", params, enabled

  FROM qerl4_extensions

  WHERE `type` = 'library' 
  AND `element` = 'joomla'

Explain

id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	qerl4_extensions	ref	element_clientid,element_folder_clientid,extension	extension	484	const,const	1	Using where

Profile

Status	Duration
starting	0.04 ms
checking permissions	0.01 ms
Opening tables	0.01 ms
System lock	0.01 ms
init	0.02 ms
optimizing	0.01 ms
statistics	0.07 ms
preparing	0.01 ms
executing	0.00 ms
Sending data	0.04 ms
end	0.00 ms
query end	0.00 ms
closing tables	0.01 ms
freeing items	0.01 ms
logging slow query	0.00 ms
cleaning up	0.00 ms

Call Stack

#	Caller	File and line number
14	JDatabaseDriverMysqli->execute()	JROOT/libraries/joomla/database/driver.php:1650
13	JDatabaseDriver->loadObject()	Same as call in the line below.
12	call_user_func_array()	JROOT/libraries/joomla/cache/controller/callback.php:152
11	JCacheControllerCallback->get()	JROOT/libraries/cms/library/helper.php:156
10	JLibraryHelper::_load()	JROOT/libraries/cms/library/helper.php:47
9	JLibraryHelper::getLibrary()	JROOT/libraries/cms/library/helper.php:90
8	JLibraryHelper::getParams()	JROOT/libraries/cms/version/version.php:274
7	JVersion->getMediaVersion()	JROOT/libraries/joomla/factory.php:755
6	JFactory::createDocument()	JROOT/libraries/joomla/factory.php:216
5	JFactory::getDocument()	JROOT/libraries/joomla/application/web.php:991
4	JApplicationWeb->loadDocument()	JROOT/libraries/cms/application/site.php:130
3	JApplicationSite->dispatch()	JROOT/libraries/cms/application/site.php:230
2	JApplicationSite->doExecute()	JROOT/libraries/cms/application/cms.php:257
1	JApplicationCms->execute()	JROOT/index.php:49

[Add xdebug.file_link_format directive to your php.ini file to have links for files.]

Query Time: 42.47 ms After last query: 0.22 ms Query memory: 0.013 MB Memory before query: 5.312 MB

UPDATE `qerl4_extensions`

  SET `params` = '{\"mediaversion\":\"e332650f431da1dc184b791eaee0cca5\"}'

  WHERE `type` = 'library' 
  AND `element` = 'joomla'

Explain

EXPLAIN not possible on query: UPDATE `qerl4_extensions` SET `params` = '{\"mediaversion\":\"e332650f431da1dc184b791eaee0cca5\"}' WHERE `type` = 'library' AND `element` = 'joomla'

Profile

Status	Duration
starting	0.04 ms
checking permissions	0.01 ms
Opening tables	0.01 ms
System lock	0.01 ms
init	0.08 ms
Updating	0.06 ms
end	0.00 ms
Waiting for query cache lock	0.00 ms
end	0.01 ms
query end	42.13 ms
closing tables	0.01 ms
freeing items	0.02 ms
logging slow query	0.00 ms
cleaning up	0.00 ms

Call Stack

#	Caller	File and line number
10	JDatabaseDriverMysqli->execute()	JROOT/libraries/cms/library/helper.php:119
9	JLibraryHelper::saveParams()	JROOT/libraries/cms/version/version.php:325
8	JVersion->setMediaVersion()	JROOT/libraries/cms/version/version.php:284
7	JVersion->getMediaVersion()	JROOT/libraries/joomla/factory.php:755
6	JFactory::createDocument()	JROOT/libraries/joomla/factory.php:216
5	JFactory::getDocument()	JROOT/libraries/joomla/application/web.php:991
4	JApplicationWeb->loadDocument()	JROOT/libraries/cms/application/site.php:130
3	JApplicationSite->dispatch()	JROOT/libraries/cms/application/site.php:230
2	JApplicationSite->doExecute()	JROOT/libraries/cms/application/cms.php:257
1	JApplicationCms->execute()	JROOT/index.php:49

[Add xdebug.file_link_format directive to your php.ini file to have links for files.]

Query Time: 0.33 ms After last query: 4.07 ms Query memory: 0.014 MB Memory before query: 5.586 MB Rows returned: 1

SELECT *

  FROM qerl4_languages

  WHERE published=1

  ORDER BY ordering ASC

Explain

id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	qerl4_languages	ALL	NULL	NO INDEX KEY COULD BE USED	NULL	NULL	1	Using where; Using filesort

Profile

Status	Duration
starting	0.04 ms
checking permissions	0.01 ms
Opening tables	0.01 ms
System lock	0.01 ms
init	0.03 ms
optimizing	0.01 ms
statistics	0.01 ms
preparing	0.01 ms
executing	0.00 ms
Sorting result	0.04 ms
Sending data	0.04 ms
end	0.00 ms
query end	0.00 ms
closing tables	0.01 ms
freeing items	0.02 ms
logging slow query	0.00 ms
cleaning up	0.00 ms

Call Stack

#	Caller	File and line number
7	JDatabaseDriverMysqli->execute()	JROOT/libraries/joomla/database/driver.php:1689
6	JDatabaseDriver->loadObjectList()	JROOT/libraries/joomla/language/helper.php:164
5	JLanguageHelper::getLanguages()	JROOT/libraries/cms/application/site.php:329
4	JApplicationSite->getParams()	JROOT/libraries/cms/application/site.php:135
3	JApplicationSite->dispatch()	JROOT/libraries/cms/application/site.php:230
2	JApplicationSite->doExecute()	JROOT/libraries/cms/application/cms.php:257
1	JApplicationCms->execute()	JROOT/index.php:49

[Add xdebug.file_link_format directive to your php.ini file to have links for files.]

Query Time: 0.20 ms After last query: 0.48 ms Query memory: 0.010 MB Memory before query: 5.608 MB Rows returned: 2

SELECT id, home, template, s.params

  FROM qerl4_template_styles as s

  LEFT JOIN qerl4_extensions as e 
  ON e.element=s.template 
  AND e.type='template' 
  AND e.client_id=s.client_id

  WHERE s.client_id = 0 
  AND e.enabled = 1

Explain

id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	s	ALL	idx_template	NO INDEX KEY COULD BE USED	NULL	NULL	4	Using where
1	SIMPLE	e	ref	element_clientid,element_folder_clientid,extension	element_clientid	403	wdwc_regfff.s.template,const	1	Using where

Profile

Status	Duration
starting	0.03 ms
checking permissions	0.00 ms
checking permissions	0.00 ms
Opening tables	0.01 ms
System lock	0.00 ms
init	0.01 ms
optimizing	0.01 ms
statistics	0.03 ms
preparing	0.01 ms
executing	0.00 ms
Sending data	0.03 ms
end	0.00 ms
query end	0.00 ms
closing tables	0.00 ms
freeing items	0.01 ms
logging slow query	0.00 ms
cleaning up	0.00 ms

Call Stack

#	Caller	File and line number
6	JDatabaseDriverMysqli->execute()	JROOT/libraries/joomla/database/driver.php:1689
5	JDatabaseDriver->loadObjectList()	JROOT/libraries/cms/application/site.php:484
4	JApplicationSite->getTemplate()	JROOT/libraries/cms/application/site.php:165
3	JApplicationSite->dispatch()	JROOT/libraries/cms/application/site.php:230
2	JApplicationSite->doExecute()	JROOT/libraries/cms/application/cms.php:257
1	JApplicationCms->execute()	JROOT/index.php:49

[Add xdebug.file_link_format directive to your php.ini file to have links for files.]

Query Time: 0.45 ms After last query: 8.12 ms Query memory: 0.034 MB Memory before query: 6.851 MB Rows returned: 8

SHOW FULL COLUMNS 
  FROM `qerl4_assets`

Explain

EXPLAIN not possible on query: SHOW FULL COLUMNS FROM `qerl4_assets`

Profile

Status	Duration
starting	0.02 ms
checking permissions	0.00 ms
Opening tables	0.15 ms
System lock	0.00 ms
init	0.00 ms
optimizing	0.00 ms
statistics	0.01 ms
preparing	0.00 ms
executing	0.00 ms
Opening tables	0.01 ms
checking permissions	0.02 ms
checking permissions	0.01 ms
checking permissions	0.01 ms
checking permissions	0.01 ms
checking permissions	0.01 ms
checking permissions	0.01 ms
checking permissions	0.01 ms
checking permissions	0.01 ms
Sending data	0.03 ms
end	0.00 ms
query end	0.00 ms
closing tables	0.00 ms
removing tmp table	0.05 ms
closing tables	0.00 ms
freeing items	0.01 ms
logging slow query	0.00 ms
cleaning up	0.00 ms

Call Stack

#	Caller	File and line number
24	JDatabaseDriverMysqli->execute()	JROOT/libraries/joomla/database/driver.php:1689
23	JDatabaseDriver->loadObjectList()	JROOT/libraries/joomla/database/driver/mysqli.php:440
22	JDatabaseDriverMysqli->getTableColumns()	JROOT/libraries/joomla/table/table.php:241
21	JTable->getFields()	JROOT/libraries/joomla/table/table.php:162
20	JTable->__construct()	JROOT/libraries/joomla/table/asset.php:60
19	JTableAsset->__construct()	JROOT/libraries/joomla/table/table.php:304
18	JTable::getInstance()	JROOT/libraries/joomla/access/access.php:714
17	JAccess::getExtensionNameFromAsset()	JROOT/libraries/joomla/access/access.php:576
16	JAccess::getAssetRules()	JROOT/libraries/joomla/user/user.php:384
15	JUser->authorise()	JROOT/components/com_content/models/articles.php:111
14	ContentModelArticles->populateState()	JROOT/components/com_content/models/featured.php:42
13	ContentModelFeatured->populateState()	JROOT/libraries/legacy/model/legacy.php:439
12	JModelLegacy->getState()	JROOT/libraries/legacy/view/legacy.php:401
11	JViewLegacy->get()	JROOT/components/com_content/views/featured/view.html.php:46
10	ContentViewFeatured->display()	JROOT/libraries/legacy/controller/legacy.php:690
9	JControllerLegacy->display()	JROOT/components/com_content/controller.php:113
8	ContentController->display()	JROOT/libraries/legacy/controller/legacy.php:728
7	JControllerLegacy->execute()	JROOT/components/com_content/content.php:38
6	require_once JROOT/components/com_content/content.php	JROOT/libraries/cms/component/helper.php:405
5	JComponentHelper::executeComponent()	JROOT/libraries/cms/component/helper.php:380
4	JComponentHelper::renderComponent()	JROOT/libraries/cms/application/site.php:191
3	JApplicationSite->dispatch()	JROOT/libraries/cms/application/site.php:230
2	JApplicationSite->doExecute()	JROOT/libraries/cms/application/cms.php:257
1	JApplicationCms->execute()	JROOT/index.php:49

[Add xdebug.file_link_format directive to your php.ini file to have links for files.]

Query Time: 0.12 ms After last query: 0.53 ms Query memory: 0.028 MB Memory before query: 6.926 MB Rows returned: 1

SELECT *

  FROM qerl4_assets

  WHERE `id` = '1'

Explain

id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	qerl4_assets	const	PRIMARY	PRIMARY	4	const	1

Profile

Status	Duration
starting	0.01 ms
checking permissions	0.00 ms
Opening tables	0.01 ms
System lock	0.00 ms
init	0.01 ms
optimizing	0.00 ms
statistics	0.02 ms
preparing	0.01 ms
executing	0.00 ms
Sending data	0.01 ms
end	0.00 ms
query end	0.00 ms
closing tables	0.00 ms
freeing items	0.01 ms
logging slow query	0.00 ms
cleaning up	0.00 ms

Call Stack

#	Caller	File and line number
20	JDatabaseDriverMysqli->execute()	JROOT/libraries/joomla/database/driver.php:1453
19	JDatabaseDriver->loadAssoc()	JROOT/libraries/joomla/table/table.php:715
18	JTable->load()	JROOT/libraries/joomla/access/access.php:715
17	JAccess::getExtensionNameFromAsset()	JROOT/libraries/joomla/access/access.php:576
16	JAccess::getAssetRules()	JROOT/libraries/joomla/user/user.php:384
15	JUser->authorise()	JROOT/components/com_content/models/articles.php:111
14	ContentModelArticles->populateState()	JROOT/components/com_content/models/featured.php:42
13	ContentModelFeatured->populateState()	JROOT/libraries/legacy/model/legacy.php:439
12	JModelLegacy->getState()	JROOT/libraries/legacy/view/legacy.php:401
11	JViewLegacy->get()	JROOT/components/com_content/views/featured/view.html.php:46
10	ContentViewFeatured->display()	JROOT/libraries/legacy/controller/legacy.php:690
9	JControllerLegacy->display()	JROOT/components/com_content/controller.php:113
8	ContentController->display()	JROOT/libraries/legacy/controller/legacy.php:728
7	JControllerLegacy->execute()	JROOT/components/com_content/content.php:38
6	require_once JROOT/components/com_content/content.php	JROOT/libraries/cms/component/helper.php:405
5	JComponentHelper::executeComponent()	JROOT/libraries/cms/component/helper.php:380
4	JComponentHelper::renderComponent()	JROOT/libraries/cms/application/site.php:191
3	JApplicationSite->dispatch()	JROOT/libraries/cms/application/site.php:230
2	JApplicationSite->doExecute()	JROOT/libraries/cms/application/cms.php:257
1	JApplicationCms->execute()	JROOT/index.php:49

[Add xdebug.file_link_format directive to your php.ini file to have links for files.]

Query Time: 0.19 ms After last query: 0.15 ms Query memory: 0.024 MB Memory before query: 6.948 MB Rows returned: 1

SELECT a.rules

  FROM qerl4_assets AS a

  WHERE (a.id = 1 OR a.name = 'root.1')

Explain

id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	a	index_merge	PRIMARY,idx_asset_name	PRIMARY,idx_asset_name	4,202	NULL	2	Using union(PRIMARY,idx_asset_name); Using where

Profile

Status	Duration
starting	0.01 ms
checking permissions	0.04 ms
Opening tables	0.01 ms
System lock	0.01 ms
init	0.01 ms
optimizing	0.01 ms
statistics	0.03 ms
preparing	0.01 ms
executing	0.00 ms
Sending data	0.04 ms
end	0.00 ms
query end	0.00 ms
closing tables	0.00 ms
freeing items	0.01 ms
logging slow query	0.00 ms
cleaning up	0.00 ms

Call Stack

#	Caller	File and line number
18	JDatabaseDriverMysqli->execute()	JROOT/libraries/joomla/database/driver.php:1538
17	JDatabaseDriver->loadColumn()	JROOT/libraries/joomla/access/access.php:670
16	JAccess::getAssetRules()	JROOT/libraries/joomla/user/user.php:384
15	JUser->authorise()	JROOT/components/com_content/models/articles.php:111
14	ContentModelArticles->populateState()	JROOT/components/com_content/models/featured.php:42
13	ContentModelFeatured->populateState()	JROOT/libraries/legacy/model/legacy.php:439
12	JModelLegacy->getState()	JROOT/libraries/legacy/view/legacy.php:401
11	JViewLegacy->get()	JROOT/components/com_content/views/featured/view.html.php:46
10	ContentViewFeatured->display()	JROOT/libraries/legacy/controller/legacy.php:690
9	JControllerLegacy->display()	JROOT/components/com_content/controller.php:113
8	ContentController->display()	JROOT/libraries/legacy/controller/legacy.php:728
7	JControllerLegacy->execute()	JROOT/components/com_content/content.php:38
6	require_once JROOT/components/com_content/content.php	JROOT/libraries/cms/component/helper.php:405
5	JComponentHelper::executeComponent()	JROOT/libraries/cms/component/helper.php:380
4	JComponentHelper::renderComponent()	JROOT/libraries/cms/application/site.php:191
3	JApplicationSite->dispatch()	JROOT/libraries/cms/application/site.php:230
2	JApplicationSite->doExecute()	JROOT/libraries/cms/application/cms.php:257
1	JApplicationCms->execute()	JROOT/index.php:49

[Add xdebug.file_link_format directive to your php.ini file to have links for files.]

Query Time: 0.15 ms After last query: 0.49 ms Query memory: 0.027 MB Memory before query: 7.008 MB Rows returned: 30

SELECT element

  FROM qerl4_extensions

  WHERE type = 'component' 
  AND enabled = '1'

Explain

id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	qerl4_extensions	ref	extension	extension	82	const	31	Using where

Profile

Status	Duration
starting	0.01 ms
checking permissions	0.00 ms
Opening tables	0.01 ms
System lock	0.00 ms
init	0.01 ms
optimizing	0.00 ms
statistics	0.02 ms
preparing	0.01 ms
executing	0.00 ms
Sending data	0.06 ms
end	0.00 ms
query end	0.00 ms
closing tables	0.00 ms
freeing items	0.01 ms
logging slow query	0.00 ms
cleaning up	0.00 ms

Call Stack

#	Caller	File and line number
20	JDatabaseDriverMysqli->execute()	JROOT/libraries/joomla/database/driver.php:1538
19	JDatabaseDriver->loadColumn()	JROOT/libraries/joomla/access/access.php:412
18	JAccess::preloadComponents()	JROOT/libraries/joomla/access/access.php:213
17	JAccess::preload()	JROOT/libraries/joomla/access/access.php:168
16	JAccess::check()	JROOT/libraries/joomla/user/user.php:393
15	JUser->authorise()	JROOT/components/com_content/models/articles.php:111
14	ContentModelArticles->populateState()	JROOT/components/com_content/models/featured.php:42
13	ContentModelFeatured->populateState()	JROOT/libraries/legacy/model/legacy.php:439
12	JModelLegacy->getState()	JROOT/libraries/legacy/view/legacy.php:401
11	JViewLegacy->get()	JROOT/components/com_content/views/featured/view.html.php:46
10	ContentViewFeatured->display()	JROOT/libraries/legacy/controller/legacy.php:690
9	JControllerLegacy->display()	JROOT/components/com_content/controller.php:113
8	ContentController->display()	JROOT/libraries/legacy/controller/legacy.php:728
7	JControllerLegacy->execute()	JROOT/components/com_content/content.php:38
6	require_once JROOT/components/com_content/content.php	JROOT/libraries/cms/component/helper.php:405
5	JComponentHelper::executeComponent()	JROOT/libraries/cms/component/helper.php:380
4	JComponentHelper::renderComponent()	JROOT/libraries/cms/application/site.php:191
3	JApplicationSite->dispatch()	JROOT/libraries/cms/application/site.php:230
2	JApplicationSite->doExecute()	JROOT/libraries/cms/application/cms.php:257
1	JApplicationCms->execute()	JROOT/index.php:49

[Add xdebug.file_link_format directive to your php.ini file to have links for files.]

Query Time: 0.23 ms After last query: 0.15 ms Query memory: 0.028 MB Memory before query: 7.040 MB Rows returned: 30

SELECT a.name, a.rules

  FROM qerl4_assets AS a

  WHERE (a.name IN ('com_admin','com_ajax','com_banners','com_cache','com_categories','com_checkin','com_config','com_contact','com_content','com_contenthistory','com_cpanel','com_finder','com_installer','com_joomlaupdate','com_languages','com_login','com_mailto','com_media','com_menus','com_messages','com_modules','com_newsfeeds','com_plugins','com_postinstall','com_redirect','com_search','com_tags','com_templates','com_users','com_wrapper') OR a.name = 'root.1')

Explain

id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	a	ALL	idx_asset_name	NO INDEX KEY COULD BE USED	NULL	NULL	52	Using where

Profile

Status	Duration
starting	0.03 ms
checking permissions	0.00 ms
Opening tables	0.00 ms
System lock	0.00 ms
init	0.03 ms
optimizing	0.00 ms
statistics	0.06 ms
preparing	0.00 ms
executing	0.00 ms
Sending data	0.06 ms
end	0.00 ms
query end	0.00 ms
closing tables	0.00 ms
freeing items	0.01 ms
logging slow query	0.00 ms
cleaning up	0.00 ms

Call Stack

#	Caller	File and line number
20	JDatabaseDriverMysqli->execute()	JROOT/libraries/joomla/database/driver.php:1494
19	JDatabaseDriver->loadAssocList()	JROOT/libraries/joomla/access/access.php:439
18	JAccess::preloadComponents()	JROOT/libraries/joomla/access/access.php:213
17	JAccess::preload()	JROOT/libraries/joomla/access/access.php:168
16	JAccess::check()	JROOT/libraries/joomla/user/user.php:393
15	JUser->authorise()	JROOT/components/com_content/models/articles.php:111
14	ContentModelArticles->populateState()	JROOT/components/com_content/models/featured.php:42
13	ContentModelFeatured->populateState()	JROOT/libraries/legacy/model/legacy.php:439
12	JModelLegacy->getState()	JROOT/libraries/legacy/view/legacy.php:401
11	JViewLegacy->get()	JROOT/components/com_content/views/featured/view.html.php:46
10	ContentViewFeatured->display()	JROOT/libraries/legacy/controller/legacy.php:690
9	JControllerLegacy->display()	JROOT/components/com_content/controller.php:113
8	ContentController->display()	JROOT/libraries/legacy/controller/legacy.php:728
7	JControllerLegacy->execute()	JROOT/components/com_content/content.php:38
6	require_once JROOT/components/com_content/content.php	JROOT/libraries/cms/component/helper.php:405
5	JComponentHelper::executeComponent()	JROOT/libraries/cms/component/helper.php:380
4	JComponentHelper::renderComponent()	JROOT/libraries/cms/application/site.php:191
3	JApplicationSite->dispatch()	JROOT/libraries/cms/application/site.php:230
2	JApplicationSite->doExecute()	JROOT/libraries/cms/application/cms.php:257
1	JApplicationCms->execute()	JROOT/index.php:49

[Add xdebug.file_link_format directive to your php.ini file to have links for files.]

Query Time: 0.72 ms After last query: 1.65 ms Query memory: 0.032 MB Memory before query: 7.314 MB Rows returned: 0

SELECT a.id, a.title, a.alias, a.introtext, a.fulltext, a.checked_out, a.checked_out_time, a.catid, a.created, a.created_by, a.created_by_alias, 
  CASE WHEN a.modified = '0000-00-00 00:00:00' THEN a.created ELSE a.modified END as modified, a.modified_by, uam.name as modified_by_name,
  CASE WHEN a.publish_up = '0000-00-00 00:00:00' THEN a.created ELSE a.publish_up END as publish_up,a.publish_down, a.images, a.urls, a.attribs, a.metadata, a.metakey, a.metadesc, a.access, a.hits, a.xreference, a.featured, a.language,  LENGTH(a.fulltext) AS readmore,
  CASE WHEN badcats.id is not null THEN 0 ELSE a.state END AS state,c.title AS category_title, c.path AS category_route, c.access AS category_access, c.alias AS category_alias,
  CASE WHEN a.created_by_alias > ' ' THEN a.created_by_alias ELSE ua.name END AS author,ua.email AS author_email,parent.title as parent_title, parent.id as parent_id, parent.path as parent_route, parent.alias as parent_alias,ROUND(v.rating_sum / v.rating_count, 0) AS rating, v.rating_count as rating_count,c.published, 
  CASE WHEN badcats.id is null THEN c.published ELSE 0 END AS parents_published

  FROM qerl4_content AS a

  INNER JOIN qerl4_content_frontpage AS fp 
  ON fp.content_id = a.id

  LEFT JOIN qerl4_categories AS c 
  ON c.id = a.catid

  LEFT JOIN qerl4_users AS ua 
  ON ua.id = a.created_by

  LEFT JOIN qerl4_users AS uam 
  ON uam.id = a.modified_by

  LEFT JOIN qerl4_categories as parent 
  ON parent.id = c.parent_id

  LEFT JOIN qerl4_content_rating AS v 
  ON a.id = v.content_id

  LEFT 
  OUTER JOIN (SELECT cat.id as id 
  FROM qerl4_categories AS cat JOIN qerl4_categories AS parent 
  ON cat.lft BETWEEN parent.lft 
  AND parent.rgt 
  WHERE parent.extension = 'com_content' 
  AND parent.published != 1 
  GROUP BY cat.id ) AS badcats 
  ON badcats.id = c.id

  WHERE a.access IN (1,1,5) 
  AND c.access IN (1,1,5) 
  AND 
  CASE WHEN badcats.id is null THEN a.state ELSE 0 END = 1 
  AND (a.publish_up = '0000-00-00 00:00:00' OR a.publish_up <= '2020-09-26 00:05:49') 
  AND (a.publish_down = '0000-00-00 00:00:00' OR a.publish_down >= '2020-09-26 00:05:49')

  ORDER BY c.lft,  a.featured DESC, fp.ordering,  
  CASE WHEN a.publish_up = '0000-00-00 00:00:00' THEN a.created ELSE a.publish_up END  DESC ,  a.created DESC   
  LIMIT 4

Explain

id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	PRIMARY	<derived2>	system	NULL	NO INDEX KEY COULD BE USED	NULL	NULL	0	const row not found
1	PRIMARY	a	ALL	PRIMARY,idx_access,idx_catid	NO INDEX KEY COULD BE USED	NULL	NULL	1	Using where; Using temporary; Using filesort
1	PRIMARY	fp	eq_ref	PRIMARY	PRIMARY	4	wdwc_regfff.a.id	1	Using where
1	PRIMARY	c	eq_ref	PRIMARY,idx_access	PRIMARY	4	wdwc_regfff.a.catid	1	Using where
1	PRIMARY	ua	eq_ref	PRIMARY	PRIMARY	4	wdwc_regfff.a.created_by	1
1	PRIMARY	uam	eq_ref	PRIMARY	PRIMARY	4	wdwc_regfff.a.modified_by	1
1	PRIMARY	parent	eq_ref	PRIMARY	PRIMARY	4	wdwc_regfff.c.parent_id	1
1	PRIMARY	v	eq_ref	PRIMARY	PRIMARY	4	wdwc_regfff.a.id	1
2	DERIVED	cat	index	idx_left_right	idx_left_right	8	NULL	6	Using index; Using temporary; Using filesort
2	DERIVED	parent	ALL	cat_idx,idx_left_right	NO INDEX KEY COULD BE USED	NULL	NULL	6	Using where; Using join buffer

Profile

Status	Duration
starting	0.12 ms
checking permissions	0.00 ms
checking permissions	0.00 ms
checking permissions	0.00 ms
checking permissions	0.00 ms
checking permissions	0.00 ms
checking permissions	0.00 ms
checking permissions	0.00 ms
checking permissions	0.00 ms
checking permissions	0.00 ms
Opening tables	0.02 ms
System lock	0.03 ms
optimizing	0.01 ms
statistics	0.03 ms
preparing	0.01 ms
Creating tmp table	0.01 ms
executing	0.00 ms
Copying to tmp table	0.02 ms
Sorting result	0.01 ms
Sending data	0.00 ms
removing tmp table	0.00 ms
Sending data	0.00 ms
init	0.05 ms
optimizing	0.02 ms
statistics	0.03 ms
preparing	0.02 ms
Creating tmp table	0.15 ms
executing	0.00 ms
Copying to tmp table	0.02 ms
Sorting result	0.01 ms
Sending data	0.02 ms
end	0.00 ms
removing tmp table	0.03 ms
end	0.00 ms
query end	0.00 ms
closing tables	0.00 ms
removing tmp table	0.00 ms
closing tables	0.01 ms
freeing items	0.01 ms
logging slow query	0.00 ms
cleaning up	0.01 ms

Call Stack

#	Caller	File and line number
17	JDatabaseDriverMysqli->execute()	JROOT/libraries/joomla/database/driver.php:1689
16	JDatabaseDriver->loadObjectList()	JROOT/libraries/legacy/model/legacy.php:312
15	JModelLegacy->_getList()	JROOT/libraries/legacy/model/list.php:185
14	JModelList->getItems()	JROOT/components/com_content/models/articles.php:566
13	ContentModelArticles->getItems()	JROOT/components/com_content/models/featured.php:90
12	ContentModelFeatured->getItems()	JROOT/libraries/legacy/view/legacy.php:401
11	JViewLegacy->get()	JROOT/components/com_content/views/featured/view.html.php:47
10	ContentViewFeatured->display()	JROOT/libraries/legacy/controller/legacy.php:690
9	JControllerLegacy->display()	JROOT/components/com_content/controller.php:113
8	ContentController->display()	JROOT/libraries/legacy/controller/legacy.php:728
7	JControllerLegacy->execute()	JROOT/components/com_content/content.php:38
6	require_once JROOT/components/com_content/content.php	JROOT/libraries/cms/component/helper.php:405
5	JComponentHelper::executeComponent()	JROOT/libraries/cms/component/helper.php:380
4	JComponentHelper::renderComponent()	JROOT/libraries/cms/application/site.php:191
3	JApplicationSite->dispatch()	JROOT/libraries/cms/application/site.php:230
2	JApplicationSite->doExecute()	JROOT/libraries/cms/application/cms.php:257
1	JApplicationCms->execute()	JROOT/index.php:49

[Add xdebug.file_link_format directive to your php.ini file to have links for files.]

Query Time: 0.36 ms After last query: 1.10 ms Query memory: 0.022 MB Memory before query: 7.457 MB Rows returned: 1

SELECT COUNT(*)

  FROM qerl4_content AS a

  INNER JOIN qerl4_content_frontpage AS fp 
  ON fp.content_id = a.id

  LEFT JOIN qerl4_categories AS c 
  ON c.id = a.catid

  LEFT JOIN qerl4_users AS ua 
  ON ua.id = a.created_by

  LEFT JOIN qerl4_users AS uam 
  ON uam.id = a.modified_by

  LEFT JOIN qerl4_categories as parent 
  ON parent.id = c.parent_id

  LEFT JOIN qerl4_content_rating AS v 
  ON a.id = v.content_id

  LEFT 
  OUTER JOIN (SELECT cat.id as id 
  FROM qerl4_categories AS cat JOIN qerl4_categories AS parent 
  ON cat.lft BETWEEN parent.lft 
  AND parent.rgt 
  WHERE parent.extension = 'com_content' 
  AND parent.published != 1 
  GROUP BY cat.id ) AS badcats 
  ON badcats.id = c.id

  WHERE a.access IN (1,1,5) 
  AND c.access IN (1,1,5) 
  AND 
  CASE WHEN badcats.id is null THEN a.state ELSE 0 END = 1 
  AND (a.publish_up = '0000-00-00 00:00:00' OR a.publish_up <= '2020-09-26 00:05:49') 
  AND (a.publish_down = '0000-00-00 00:00:00' OR a.publish_down >= '2020-09-26 00:05:49')

Explain

id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	PRIMARY	<derived2>	system	NULL	NO INDEX KEY COULD BE USED	NULL	NULL	0	const row not found
1	PRIMARY	a	ALL	PRIMARY,idx_access,idx_catid	NO INDEX KEY COULD BE USED	NULL	NULL	1	Using where
1	PRIMARY	fp	eq_ref	PRIMARY	PRIMARY	4	wdwc_regfff.a.id	1	Using where; Using index
1	PRIMARY	c	eq_ref	PRIMARY,idx_access	PRIMARY	4	wdwc_regfff.a.catid	1	Using where
1	PRIMARY	ua	eq_ref	PRIMARY	PRIMARY	4	wdwc_regfff.a.created_by	1	Using index
1	PRIMARY	uam	eq_ref	PRIMARY	PRIMARY	4	wdwc_regfff.a.modified_by	1	Using index
1	PRIMARY	parent	eq_ref	PRIMARY	PRIMARY	4	wdwc_regfff.c.parent_id	1	Using index
1	PRIMARY	v	eq_ref	PRIMARY	PRIMARY	4	wdwc_regfff.a.id	1	Using index
2	DERIVED	cat	index	idx_left_right	idx_left_right	8	NULL	6	Using index; Using temporary; Using filesort
2	DERIVED	parent	ALL	cat_idx,idx_left_right	NO INDEX KEY COULD BE USED	NULL	NULL	6	Using where; Using join buffer

Profile

Status	Duration
starting	0.06 ms
checking permissions	0.00 ms
checking permissions	0.00 ms
checking permissions	0.00 ms
checking permissions	0.00 ms
checking permissions	0.00 ms
checking permissions	0.00 ms
checking permissions	0.00 ms
checking permissions	0.00 ms
checking permissions	0.00 ms
Opening tables	0.01 ms
System lock	0.02 ms
optimizing	0.01 ms
statistics	0.02 ms
preparing	0.01 ms
Creating tmp table	0.01 ms
executing	0.00 ms
Copying to tmp table	0.02 ms
Sorting result	0.00 ms
Sending data	0.00 ms
removing tmp table	0.00 ms
Sending data	0.00 ms
init	0.02 ms
optimizing	0.01 ms
statistics	0.03 ms
preparing	0.02 ms
executing	0.00 ms
Sending data	0.01 ms
end	0.00 ms
query end	0.00 ms
closing tables	0.00 ms
removing tmp table	0.00 ms
closing tables	0.00 ms
freeing items	0.02 ms
logging slow query	0.00 ms
cleaning up	0.01 ms

Call Stack

#	Caller	File and line number
16	JDatabaseDriverMysqli->execute()	JROOT/libraries/joomla/database/driver.php:1728
15	JDatabaseDriver->loadResult()	JROOT/libraries/legacy/model/legacy.php:341
14	JModelLegacy->_getListCount()	JROOT/libraries/legacy/model/list.php:290
13	JModelList->getTotal()	JROOT/libraries/legacy/model/list.php:235
12	JModelList->getPagination()	JROOT/libraries/legacy/view/legacy.php:401
11	JViewLegacy->get()	JROOT/components/com_content/views/featured/view.html.php:48
10	ContentViewFeatured->display()	JROOT/libraries/legacy/controller/legacy.php:690
9	JControllerLegacy->display()	JROOT/components/com_content/controller.php:113
8	ContentController->display()	JROOT/libraries/legacy/controller/legacy.php:728
7	JControllerLegacy->execute()	JROOT/components/com_content/content.php:38
6	require_once JROOT/components/com_content/content.php	JROOT/libraries/cms/component/helper.php:405
5	JComponentHelper::executeComponent()	JROOT/libraries/cms/component/helper.php:380
4	JComponentHelper::renderComponent()	JROOT/libraries/cms/application/site.php:191
3	JApplicationSite->dispatch()	JROOT/libraries/cms/application/site.php:230
2	JApplicationSite->doExecute()	JROOT/libraries/cms/application/cms.php:257
1	JApplicationCms->execute()	JROOT/index.php:49

[Add xdebug.file_link_format directive to your php.ini file to have links for files.]

Query Time: 0.32 ms After last query: 6.58 ms Query memory: 0.020 MB Memory before query: 8.247 MB Rows returned: 3

SELECT m.id, m.title, m.module, m.position, m.content, m.showtitle, m.params, mm.menuid

  FROM qerl4_modules AS m

  LEFT JOIN qerl4_modules_menu AS mm 
  ON mm.moduleid = m.id

  LEFT JOIN qerl4_extensions AS e 
  ON e.element = m.module 
  AND e.client_id = m.client_id

  WHERE m.published = 1 
  AND e.enabled = 1 
  AND (m.publish_up = '0000-00-00 00:00:00' OR m.publish_up <= '2020-09-26 00:05:49') 
  AND (m.publish_down = '0000-00-00 00:00:00' OR m.publish_down >= '2020-09-26 00:05:49') 
  AND m.access IN (1,1,5) 
  AND m.client_id = 0 
  AND (mm.menuid = 101 OR mm.menuid <= 0)

  ORDER BY m.position, m.ordering

Explain

id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	m	ref	PRIMARY,published,newsfeeds	published	1	const	5	Using where; Using filesort
1	SIMPLE	mm	ref	PRIMARY	PRIMARY	4	wdwc_regfff.m.id	1	Using where; Using index
1	SIMPLE	e	ref	element_clientid,element_folder_clientid	element_clientid	403	wdwc_regfff.m.module,const	1	Using where

Profile

Status	Duration
starting	0.04 ms
checking permissions	0.00 ms
checking permissions	0.00 ms
checking permissions	0.00 ms
Opening tables	0.01 ms
System lock	0.00 ms
init	0.02 ms
optimizing	0.01 ms
statistics	0.04 ms
preparing	0.02 ms
executing	0.00 ms
Sorting result	0.04 ms
Sending data	0.05 ms
end	0.00 ms
query end	0.00 ms
closing tables	0.00 ms
freeing items	0.01 ms
logging slow query	0.00 ms
cleaning up	0.00 ms

Call Stack

#	Caller	File and line number
13	JDatabaseDriverMysqli->execute()	JROOT/libraries/joomla/database/driver.php:1689
12	JDatabaseDriver->loadObjectList()	JROOT/libraries/cms/module/helper.php:409
11	JModuleHelper::getModuleList()	JROOT/libraries/cms/module/helper.php:352
10	JModuleHelper::load()	JROOT/libraries/cms/module/helper.php:84
9	JModuleHelper::getModules()	JROOT/libraries/joomla/document/html.php:501
8	JDocumentHtml->countModules()	JROOT/templates/protostar/index.php:94
7	require JROOT/templates/protostar/index.php	JROOT/libraries/joomla/document/html.php:578
6	JDocumentHtml->_loadTemplate()	JROOT/libraries/joomla/document/html.php:640
5	JDocumentHtml->_fetchTemplate()	JROOT/libraries/joomla/document/html.php:455
4	JDocumentHtml->parse()	JROOT/libraries/cms/application/cms.php:1054
3	JApplicationCms->render()	JROOT/libraries/cms/application/site.php:745
2	JApplicationSite->render()	JROOT/libraries/cms/application/cms.php:263
1	JApplicationCms->execute()	JROOT/index.php:49

[Add xdebug.file_link_format directive to your php.ini file to have links for files.]

20 Query Types Logged, Sorted by Occurrences.

SELECT Tables:

2 × SELECT extension_id AS id, element AS "option", params, enabled 
  FROM qerl4_extensions

1 × SELECT element 
  FROM qerl4_extensions

1 × SELECT a.rules 
  FROM qerl4_assets AS a

1 × SELECT a.name, a.rules 
  FROM qerl4_assets AS a

1 × SELECT COUNT(*) 
  FROM qerl4_content AS a 
  INNER JOIN qerl4_content_frontpage AS fp 
  ON fp.content_id = a.id 
  LEFT JOIN qerl4_categories AS c 
  ON c.id = a.catid 
  LEFT JOIN qerl4_users AS ua 
  ON ua.id = a.created_by 
  LEFT JOIN qerl4_users AS uam 
  ON uam.id = a.modified_by 
  LEFT JOIN qerl4_categories as parent 
  ON parent.id = c.parent_id 
  LEFT JOIN qerl4_content_rating AS v 
  ON a.id = v.content_id 
  LEFT 
  OUTER JOIN (SELECT cat.id as id 
  FROM qerl4_categories AS cat JOIN qerl4_categories AS parent 
  ON cat.lft BETWEEN parent.lft 
  AND parent.rgt

1 × SELECT m.id, m.title, m.module, m.position, m.content, m.showtitle, m.params, mm.menuid 
  FROM qerl4_modules AS m 
  LEFT JOIN qerl4_modules_menu AS mm 
  ON mm.moduleid = m.id 
  LEFT JOIN qerl4_extensions AS e 
  ON e.element = m.module 
  AND e.client_id = m.client_id

```
1 × SELECT * 
  FROM qerl4_assets
```

1 × SELECT a.id, a.title, a.alias, a.introtext, a.fulltext, a.checked_out, a.checked_out_time, a.catid, a.created, a.created_by, a.created_by_alias, 
  CASE WHEN a.modified = '0000-00-00 00:00:00' THEN a.created ELSE a.modified END as modified, a.modified_by, uam.name as modified_by_name,
  CASE WHEN a.publish_up = '0000-00-00 00:00:00' THEN a.created ELSE a.publish_up END as publish_up,a.publish_down, a.images, a.urls, a.attribs, a.metadata, a.metakey, a.metadesc, a.access, a.hits, a.xreference, a.featured, a.language,  LENGTH(a.fulltext) AS readmore,
  CASE WHEN badcats.id is not null THEN 0 ELSE a.state END AS state,c.title AS category_title, c.path AS category_route, c.access AS category_access, c.alias AS category_alias,
  CASE WHEN a.created_by_alias > ' ' THEN a.created_by_alias ELSE ua.name END AS author,ua.email AS author_email,parent.title as parent_title, parent.id as parent_id, parent.path as parent_route, parent.alias as parent_alias,ROUND(v.rating_sum / v.rating_count, 0) AS rating, v.rating_count as rating_count,c.published, 
  CASE WHEN badcats.id is null THEN c.published ELSE 0 END AS parents_published 
  FROM qerl4_content AS a 
  INNER JOIN qerl4_content_frontpage AS fp 
  ON fp.content_id = a.id 
  LEFT JOIN qerl4_categories AS c 
  ON c.id = a.catid 
  LEFT JOIN qerl4_users AS ua 
  ON ua.id = a.created_by 
  LEFT JOIN qerl4_users AS uam 
  ON uam.id = a.modified_by 
  LEFT JOIN qerl4_categories as parent 
  ON parent.id = c.parent_id 
  LEFT JOIN qerl4_content_rating AS v 
  ON a.id = v.content_id 
  LEFT 
  OUTER JOIN (SELECT cat.id as id 
  FROM qerl4_categories AS cat JOIN qerl4_categories AS parent 
  ON cat.lft BETWEEN parent.lft 
  AND parent.rgt

```
1 × SELECT * 
  FROM qerl4_languages
```

1 × SELECT b.id 
  FROM qerl4_usergroups AS a 
  LEFT JOIN qerl4_usergroups AS b 
  ON b.lft <= a.lft 
  AND b.rgt >= a.rgt

1 × SELECT `session_id` 
  FROM `qerl4_session`

1 × SELECT id, rules 
  FROM `qerl4_viewlevels

1 × SELECT folder AS type, element AS name, params 
  FROM qerl4_extensions

1 × SELECT `data` 
  FROM `qerl4_session`

1 × SELECT m.id, m.menutype, m.title, m.alias, m.note, m.path AS route, m.link, m.type, m.level, m.language,`m`.`browserNav`, m.access, m.params, m.home, m.img, m.template_style_id, m.component_id, m.parent_id,e.element as component 
  FROM qerl4_menu AS m 
  LEFT JOIN qerl4_extensions AS e 
  ON m.component_id = e.extension_id

1 × SELECT id, home, template, s.params 
  FROM qerl4_template_styles as s 
  LEFT JOIN qerl4_extensions as e 
  ON e.element=s.template 
  AND e.type='template' 
  AND e.client_id=s.client_id

OTHER Tables:

1 × SHOW FULL COLUMNS 
  FROM `qerl4_assets

1 × UPDATE `qerl4_extensions` 
  SET `params` = '{\"mediaversion\":\"e332650f431da1dc184b791eaee0cca5\"}'

1 × INSERT INTO `qerl4_session` (`session_id`, `client_id`, `time`) 
  VALUES  ('c1nou77o2l9nnt24fjpv0rvlk0', 0, '1601078749'

```
1 × DELETE  
  FROM `qerl4_session`
```

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Joomla! Debug Console

Session

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Time

Memory

Memory Usage

Database Queries

21 Queries Logged 180.77 ms

20 Query Types Logged, Sorted by Occurrences.

SELECT Tables:

OTHER Tables: