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Testing 2020-2021 1st semester

  • General info
  • CTS 1 EN
  • CTS 1 NL

CTS EN 2020-2021

  • CTS 1 EN
  • CTS 2 EN
  • CTS 3 EN

Master of Music

  • Musical language & its development

Baroque Counterpoint

  • Assignments

CTS 3 EN 2020-2021

The first semester 2020-2021escher trappenhuis

Our topic will be 20th century music from around 1914 until around 1950.

An important characeristic of this period is the existence of principally different styles and musical idioms.

The following DIVISION has been presented:

  1. (Continued) romanticism: with composers like Richard Strauss, Ralph Vaughan WIlliams, Jean Sibelius, Sergej Rachmaninoff etc.
  2. "Reactionary" movements directed at atonality: free as well as structured atonality (dodecaphony):
    with composers like Arnold Schoenberg, Alban Berg, Anton Webern. Later continued with serial techniques
  3. Rediscovered and revitalized modality, (often with very refined harmonic colour effects as a result of the use of chromaticism and enharmonicism):
    with composers like Gabriel Fauré, Maurice Ravel and Claude Debussy.
  4. A variety of "neo" styles: approaches that stick to a tonal orientation, but also work with "echoes" from the past:
    with composers like Paul Hindemith, Igor Stravinsky, Arthur Honegger.
  5. "Personal" styles: composers who can belong to the previous categories, but with a personal identifying "fingerprint":
    with composers like Béla Bartók, Claude Debussy, Olivier Messiaen, Igor Stravinsky, Maurice Ravel.

With regard to aspects of harmony and counterpoint, we will discuss topics like:

  1. chromaticism 
  2. enharmonicism, both with an open eye for underlying goals, such as
    "concentric", connected with a background framework of major-minor tonality. 
    "excentric", aiming at fading and blurring of tonality
  3. modality, paying attention to special colour effects as a result of the introduction of modal elements in a major-minor context 
  4. atonality, paying attention to a new view on dissonance/consonance, the emerging of new chord types, and the twelve tone row as a background framework for musical choices by the composer 

For the historical perspective we will use the chapters 31-38 from A History of Western Music (Part Six) 9th edition. We will use chapter 30 as a stepping stone towards Part Six.

In case of clear references to the past we will also revert to earlier chapters. This will be mainly the case with so called "neo"-styles.

 

List of articles in category CTS 3 EN 2020-2021
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  • French Chamber Music in the 19th Century
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    [Add xdebug.file_link_format directive to your php.ini file to have links for files.]

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    closing tables0.00 ms
    freeing items0.03 ms
    cleaning up0.01 ms
    Call Stack
    #CallerFile and line number
    21JDatabaseDriverMysqli->execute()JROOT/libraries/joomla/database/driver.php:1701
    20JDatabaseDriver->loadObjectList()JROOT/libraries/src/Access/Access.php:429
    19Joomla\CMS\Access\Access::preloadComponents()JROOT/libraries/src/Access/Access.php:213
    18Joomla\CMS\Access\Access::preload()JROOT/libraries/src/Access/Access.php:531
    17Joomla\CMS\Access\Access::getAssetRules()JROOT/libraries/src/Access/Access.php:183
    16Joomla\CMS\Access\Access::check()JROOT/libraries/src/User/User.php:398
    15Joomla\CMS\User\User->authorise()JROOT/components/com_content/models/category.php:139
    14ContentModelCategory->populateState()JROOT/libraries/src/MVC/Model/BaseDatabaseModel.php:440
    13Joomla\CMS\MVC\Model\BaseDatabaseModel->getState()JROOT/libraries/src/MVC/View/CategoryView.php:116
    12Joomla\CMS\MVC\View\CategoryView->commonCategoryDisplay()JROOT/components/com_content/views/category/view.html.php:75
    11ContentViewCategory->display()JROOT/libraries/src/Cache/Controller/ViewController.php:102
    10Joomla\CMS\Cache\Controller\ViewController->get()JROOT/libraries/src/MVC/Controller/BaseController.php:663
    9Joomla\CMS\MVC\Controller\BaseController->display()JROOT/components/com_content/controller.php:118
    8ContentController->display()JROOT/libraries/src/MVC/Controller/BaseController.php:710
    7Joomla\CMS\MVC\Controller\BaseController->execute()JROOT/components/com_content/content.php:43
    6require_once JROOT/components/com_content/content.phpJROOT/libraries/src/Component/ComponentHelper.php:402
    5Joomla\CMS\Component\ComponentHelper::executeComponent()JROOT/libraries/src/Component/ComponentHelper.php:377
    4Joomla\CMS\Component\ComponentHelper::renderComponent()JROOT/libraries/src/Application/SiteApplication.php:194
    3Joomla\CMS\Application\SiteApplication->dispatch()JROOT/libraries/src/Application/SiteApplication.php:233
    2Joomla\CMS\Application\SiteApplication->doExecute()JROOT/libraries/src/Application/CMSApplication.php:196
    1Joomla\CMS\Application\CMSApplication->execute()JROOT/index.php:49
    [Add xdebug.file_link_format directive to your php.ini file to have links for files.]

  9. Query Time: 0.82 ms After last query: 0.19 ms Query memory: 0.096 MB Memory before query: 3.558 MB Rows returned: 468
    SELECT `id`,`name`,`rules`,`parent_id`
    
      FROM `jos_assets`
      WHERE `name` LIKE 'com_content.%' OR `name` = 'com_content' OR `parent_id` = 0
    Explain
    idselect_typetablepartitionstypepossible_keyskeykey_lenrefrowsfilteredExtra
    1SIMPLEjos_assetsNULLALLidx_asset_name,idx_parent_idNO INDEX KEY COULD BE USEDNULLNULL64220.91Using where
    Profile
    StatusDuration
    starting0.05 ms
    checking permissions0.00 ms
    Opening tables0.01 ms
    init0.02 ms
    System lock0.00 ms
    optimizing0.01 ms
    statistics0.05 ms
    preparing0.01 ms
    executing0.01 ms
    Sending data0.47 ms
    end0.00 ms
    query end0.00 ms
    closing tables0.00 ms
    freeing items0.02 ms
    cleaning up0.01 ms
    Call Stack
    #CallerFile and line number
    21JDatabaseDriverMysqli->execute()JROOT/libraries/joomla/database/driver.php:1701
    20JDatabaseDriver->loadObjectList()JROOT/libraries/src/Access/Access.php:359
    19Joomla\CMS\Access\Access::preloadPermissions()JROOT/libraries/src/Access/Access.php:226
    18Joomla\CMS\Access\Access::preload()JROOT/libraries/src/Access/Access.php:540
    17Joomla\CMS\Access\Access::getAssetRules()JROOT/libraries/src/Access/Access.php:183
    16Joomla\CMS\Access\Access::check()JROOT/libraries/src/User/User.php:398
    15Joomla\CMS\User\User->authorise()JROOT/components/com_content/models/category.php:139
    14ContentModelCategory->populateState()JROOT/libraries/src/MVC/Model/BaseDatabaseModel.php:440
    13Joomla\CMS\MVC\Model\BaseDatabaseModel->getState()JROOT/libraries/src/MVC/View/CategoryView.php:116
    12Joomla\CMS\MVC\View\CategoryView->commonCategoryDisplay()JROOT/components/com_content/views/category/view.html.php:75
    11ContentViewCategory->display()JROOT/libraries/src/Cache/Controller/ViewController.php:102
    10Joomla\CMS\Cache\Controller\ViewController->get()JROOT/libraries/src/MVC/Controller/BaseController.php:663
    9Joomla\CMS\MVC\Controller\BaseController->display()JROOT/components/com_content/controller.php:118
    8ContentController->display()JROOT/libraries/src/MVC/Controller/BaseController.php:710
    7Joomla\CMS\MVC\Controller\BaseController->execute()JROOT/components/com_content/content.php:43
    6require_once JROOT/components/com_content/content.phpJROOT/libraries/src/Component/ComponentHelper.php:402
    5Joomla\CMS\Component\ComponentHelper::executeComponent()JROOT/libraries/src/Component/ComponentHelper.php:377
    4Joomla\CMS\Component\ComponentHelper::renderComponent()JROOT/libraries/src/Application/SiteApplication.php:194
    3Joomla\CMS\Application\SiteApplication->dispatch()JROOT/libraries/src/Application/SiteApplication.php:233
    2Joomla\CMS\Application\SiteApplication->doExecute()JROOT/libraries/src/Application/CMSApplication.php:196
    1Joomla\CMS\Application\CMSApplication->execute()JROOT/index.php:49
    [Add xdebug.file_link_format directive to your php.ini file to have links for files.]

  10. Query Time: 1.15 ms After last query: 1.62 ms Query memory: 0.026 MB Memory before query: 3.998 MB Rows returned: 3
    SELECT c.id, c.asset_id, c.access, c.alias, c.checked_out, c.checked_out_time,
    				c.created_time, c.created_user_id, c.description, c.extension, c.hits, c.language, c.level,
    				c.lft, c.metadata, c.metadesc, c.metakey, c.modified_time, c.note, c.params, c.parent_id,
    				c.path, c.published, c.rgt, c.title, c.modified_user_id, c.version, 
      CASE WHEN CHAR_LENGTH(c.alias) != 0 THEN CONCAT_WS(':', c.id, c.alias) ELSE c.id END as slug,( SELECT COUNT(i.`id`)
      FROM `jos_content` AS `i`
      WHERE i.`catid` = c.id
      AND i.state = 1
      AND (i.language = '*' OR i.language = 'en-GB')) AS numitems
      FROM `jos_categories` AS `s`
      INNER JOIN `jos_categories` AS `c`
      ON (s.lft < c.lft
      AND c.lft < s.rgt
      AND c.language IN ('en-GB','*')) OR (c.lft <= s.lft
      AND s.rgt <= c.rgt)
      WHERE (c.extension='com_content' OR c.extension='system')
      AND c.published = 1
      AND s.id = 138
      ORDER BY c.lft
    Explain
    idselect_typetablepartitionstypepossible_keyskeykey_lenrefrowsfilteredExtra
    1PRIMARYsNULLconstPRIMARY,idx_left_rightPRIMARY4const1100.00Using filesort
    1PRIMARYcNULLALLcat_idx,idx_left_right,idx_languageNO INDEX KEY COULD BE USEDNULLNULL12134.01Using where
    2DEPENDENT SUBQUERYiNULLrefidx_state,idx_catid,idx_languageidx_catid4ID251146_db020376jooml51k9ksw2vyilnetabw.c.id563.32Using index condition; Using where
    Profile
    StatusDuration
    starting0.16 ms
    checking permissions0.00 ms
    checking permissions0.00 ms
    checking permissions0.00 ms
    Opening tables0.19 ms
    init0.07 ms
    System lock0.01 ms
    optimizing0.02 ms
    statistics0.12 ms
    preparing0.02 ms
    Sorting result0.01 ms
    optimizing0.01 ms
    statistics0.05 ms
    preparing0.01 ms
    executing0.00 ms
    Sending data0.02 ms
    Creating sort index0.22 ms
    executing0.00 ms
    Sending data0.03 ms
    executing0.00 ms
    Sending data0.01 ms
    executing0.00 ms
    Sending data0.03 ms
    end0.00 ms
    query end0.01 ms
    closing tables0.01 ms
    freeing items0.04 ms
    cleaning up0.01 ms
    Call Stack
    #CallerFile and line number
    18JDatabaseDriverMysqli->execute()JROOT/libraries/joomla/database/driver.php:1701
    17JDatabaseDriver->loadObjectList()JROOT/libraries/src/Categories/Categories.php:324
    16Joomla\CMS\Categories\Categories->_load()JROOT/libraries/src/Categories/Categories.php:184
    15Joomla\CMS\Categories\Categories->get()JROOT/components/com_content/models/category.php:355
    14ContentModelCategory->getCategory()JROOT/libraries/src/MVC/View/HtmlView.php:425
    13Joomla\CMS\MVC\View\HtmlView->get()JROOT/libraries/src/MVC/View/CategoryView.php:122
    12Joomla\CMS\MVC\View\CategoryView->commonCategoryDisplay()JROOT/components/com_content/views/category/view.html.php:75
    11ContentViewCategory->display()JROOT/libraries/src/Cache/Controller/ViewController.php:102
    10Joomla\CMS\Cache\Controller\ViewController->get()JROOT/libraries/src/MVC/Controller/BaseController.php:663
    9Joomla\CMS\MVC\Controller\BaseController->display()JROOT/components/com_content/controller.php:118
    8ContentController->display()JROOT/libraries/src/MVC/Controller/BaseController.php:710
    7Joomla\CMS\MVC\Controller\BaseController->execute()JROOT/components/com_content/content.php:43
    6require_once JROOT/components/com_content/content.phpJROOT/libraries/src/Component/ComponentHelper.php:402
    5Joomla\CMS\Component\ComponentHelper::executeComponent()JROOT/libraries/src/Component/ComponentHelper.php:377
    4Joomla\CMS\Component\ComponentHelper::renderComponent()JROOT/libraries/src/Application/SiteApplication.php:194
    3Joomla\CMS\Application\SiteApplication->dispatch()JROOT/libraries/src/Application/SiteApplication.php:233
    2Joomla\CMS\Application\SiteApplication->doExecute()JROOT/libraries/src/Application/CMSApplication.php:196
    1Joomla\CMS\Application\CMSApplication->execute()JROOT/index.php:49
    [Add xdebug.file_link_format directive to your php.ini file to have links for files.]

  11. Query Time: 1.25 ms After last query: 0.97 ms Query memory: 0.041 MB Memory before query: 4.040 MB Rows returned: 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 c.published = 2
      AND a.state > 0 THEN 2 WHEN c.published != 1 THEN 0 ELSE a.state END as state,
      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, a.ordering,c.title AS category_title, c.path AS category_route, c.access AS category_access, c.alias AS category_alias,c.published, c.published AS parents_published, c.lft,
      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,COALESCE(NULLIF(ROUND(v.rating_sum / v.rating_count, 0), 0), 0) AS rating, COALESCE(NULLIF(v.rating_count, 0), 0) as rating_count
      FROM jos_content AS a
      LEFT JOIN jos_categories AS c
      ON c.id = a.catid
      LEFT JOIN jos_users AS ua
      ON ua.id = a.created_by
      LEFT JOIN jos_users AS uam
      ON uam.id = a.modified_by
      LEFT JOIN jos_categories as parent
      ON parent.id = c.parent_id
      LEFT JOIN jos_content_rating AS v
      ON a.id = v.content_id
      WHERE a.access IN (1,1,5)
      AND c.access IN (1,1,5)
      AND c.published = 1
      AND a.state = 1
      AND a.catid = 138
      AND (a.publish_up = '0000-00-00 00:00:00' OR a.publish_up <= '2021-01-20 03:56:29')
      AND (a.publish_down = '0000-00-00 00:00:00' OR a.publish_down >= '2021-01-20 03:56:29')
      AND a.language IN ('en-GB','*')
      ORDER BY c.lft,
      CASE WHEN a.publish_up = '0000-00-00 00:00:00' THEN a.created ELSE a.publish_up END DESC , a.created
      LIMIT 10
    Explain
    idselect_typetablepartitionstypepossible_keyskeykey_lenrefrowsfilteredExtra
    1SIMPLEcNULLconstPRIMARY,idx_accessPRIMARY4const1100.00Using filesort
    1SIMPLEaNULLrefidx_access,idx_state,idx_catid,idx_languageidx_catid4const110.13Using index condition; Using where
    1SIMPLEuaNULLeq_refPRIMARYPRIMARY4ID251146_db020376jooml51k9ksw2vyilnetabw.a.created_by1100.00Using where
    1SIMPLEuamNULLeq_refPRIMARYPRIMARY4ID251146_db020376jooml51k9ksw2vyilnetabw.a.modified_by1100.00Using where
    1SIMPLEparentNULLconstPRIMARYPRIMARY4const1100.00Using where
    1SIMPLEvNULLeq_refPRIMARYPRIMARY4ID251146_db020376jooml51k9ksw2vyilnetabw.a.id1100.00Using where
    Profile
    StatusDuration
    starting0.21 ms
    checking permissions0.00 ms
    checking permissions0.00 ms
    checking permissions0.01 ms
    checking permissions0.00 ms
    checking permissions0.00 ms
    checking permissions0.00 ms
    Opening tables0.32 ms
    init0.11 ms
    System lock0.01 ms
    optimizing0.02 ms
    statistics0.14 ms
    preparing0.03 ms
    Sorting result0.01 ms
    executing0.00 ms
    Sending data0.03 ms
    Creating sort index0.12 ms
    end0.00 ms
    query end0.01 ms
    closing tables0.01 ms
    freeing items0.06 ms
    cleaning up0.01 ms
    Call Stack
    #CallerFile and line number
    19JDatabaseDriverMysqli->execute()JROOT/libraries/joomla/database/driver.php:1701
    18JDatabaseDriver->loadObjectList()JROOT/libraries/src/MVC/Model/BaseDatabaseModel.php:308
    17Joomla\CMS\MVC\Model\BaseDatabaseModel->_getList()JROOT/libraries/src/MVC/Model/ListModel.php:187
    16Joomla\CMS\MVC\Model\ListModel->getItems()JROOT/components/com_content/models/articles.php:576
    15ContentModelArticles->getItems()JROOT/components/com_content/models/category.php:253
    14ContentModelCategory->getItems()JROOT/libraries/src/MVC/View/HtmlView.php:425
    13Joomla\CMS\MVC\View\HtmlView->get()JROOT/libraries/src/MVC/View/CategoryView.php:144
    12Joomla\CMS\MVC\View\CategoryView->commonCategoryDisplay()JROOT/components/com_content/views/category/view.html.php:75
    11ContentViewCategory->display()JROOT/libraries/src/Cache/Controller/ViewController.php:102
    10Joomla\CMS\Cache\Controller\ViewController->get()JROOT/libraries/src/MVC/Controller/BaseController.php:663
    9Joomla\CMS\MVC\Controller\BaseController->display()JROOT/components/com_content/controller.php:118
    8ContentController->display()JROOT/libraries/src/MVC/Controller/BaseController.php:710
    7Joomla\CMS\MVC\Controller\BaseController->execute()JROOT/components/com_content/content.php:43
    6require_once JROOT/components/com_content/content.phpJROOT/libraries/src/Component/ComponentHelper.php:402
    5Joomla\CMS\Component\ComponentHelper::executeComponent()JROOT/libraries/src/Component/ComponentHelper.php:377
    4Joomla\CMS\Component\ComponentHelper::renderComponent()JROOT/libraries/src/Application/SiteApplication.php:194
    3Joomla\CMS\Application\SiteApplication->dispatch()JROOT/libraries/src/Application/SiteApplication.php:233
    2Joomla\CMS\Application\SiteApplication->doExecute()JROOT/libraries/src/Application/CMSApplication.php:196
    1Joomla\CMS\Application\CMSApplication->execute()JROOT/index.php:49
    [Add xdebug.file_link_format directive to your php.ini file to have links for files.]

  12. Query Time: 0.84 ms After last query: 1.34 ms Query memory: 0.024 MB Memory before query: 4.079 MB Rows returned: 0
    SELECT `m`.`tag_id`,`t`.*
    
      FROM `jos_contentitem_tag_map` AS m
      INNER JOIN `jos_tags` AS t
      ON `m`.`tag_id` = `t`.`id`
      WHERE `m`.`type_alias` = 'com_content.article'
      AND `m`.`content_item_id` = 416
      AND `t`.`published` = 1
      AND t.access IN (1,1,5)
    Explain
    idselect_typetablepartitionstypepossible_keyskeykey_lenrefrowsfilteredExtra
    1SIMPLEmNULLALLidx_tag_typeNO INDEX KEY COULD BE USEDNULLNULL714.29Using where
    1SIMPLEtNULLeq_refPRIMARY,tag_idx,idx_accessPRIMARY4ID251146_db020376jooml51k9ksw2vyilnetabw.m.tag_id1100.00Using where
    Profile
    StatusDuration
    starting0.06 ms
    checking permissions0.00 ms
    checking permissions0.00 ms
    Opening tables0.41 ms
    init0.04 ms
    System lock0.01 ms
    optimizing0.02 ms
    statistics0.08 ms
    preparing0.02 ms
    executing0.00 ms
    Sending data0.04 ms
    end0.00 ms
    query end0.00 ms
    closing tables0.01 ms
    freeing items0.04 ms
    cleaning up0.01 ms
    Call Stack
    #CallerFile and line number
    18JDatabaseDriverMysqli->execute()JROOT/libraries/joomla/database/driver.php:1701
    17JDatabaseDriver->loadObjectList()JROOT/libraries/src/Helper/TagsHelper.php:454
    16Joomla\CMS\Helper\TagsHelper->getItemTags()JROOT/components/com_content/models/articles.php:706
    15ContentModelArticles->getItems()JROOT/components/com_content/models/category.php:253
    14ContentModelCategory->getItems()JROOT/libraries/src/MVC/View/HtmlView.php:425
    13Joomla\CMS\MVC\View\HtmlView->get()JROOT/libraries/src/MVC/View/CategoryView.php:144
    12Joomla\CMS\MVC\View\CategoryView->commonCategoryDisplay()JROOT/components/com_content/views/category/view.html.php:75
    11ContentViewCategory->display()JROOT/libraries/src/Cache/Controller/ViewController.php:102
    10Joomla\CMS\Cache\Controller\ViewController->get()JROOT/libraries/src/MVC/Controller/BaseController.php:663
    9Joomla\CMS\MVC\Controller\BaseController->display()JROOT/components/com_content/controller.php:118
    8ContentController->display()JROOT/libraries/src/MVC/Controller/BaseController.php:710
    7Joomla\CMS\MVC\Controller\BaseController->execute()JROOT/components/com_content/content.php:43
    6require_once JROOT/components/com_content/content.phpJROOT/libraries/src/Component/ComponentHelper.php:402
    5Joomla\CMS\Component\ComponentHelper::executeComponent()JROOT/libraries/src/Component/ComponentHelper.php:377
    4Joomla\CMS\Component\ComponentHelper::renderComponent()JROOT/libraries/src/Application/SiteApplication.php:194
    3Joomla\CMS\Application\SiteApplication->dispatch()JROOT/libraries/src/Application/SiteApplication.php:233
    2Joomla\CMS\Application\SiteApplication->doExecute()JROOT/libraries/src/Application/CMSApplication.php:196
    1Joomla\CMS\Application\CMSApplication->execute()JROOT/index.php:49
    [Add xdebug.file_link_format directive to your php.ini file to have links for files.]

  13. Query Time: 0.59 ms After last query: 0.74 ms Query memory: 0.025 MB Memory before query: 4.110 MB Rows returned: 1
    SELECT COUNT(*)
    
      FROM jos_content AS a
      LEFT JOIN jos_categories AS c
      ON c.id = a.catid
      LEFT JOIN jos_users AS ua
      ON ua.id = a.created_by
      LEFT JOIN jos_users AS uam
      ON uam.id = a.modified_by
      LEFT JOIN jos_categories as parent
      ON parent.id = c.parent_id
      LEFT JOIN jos_content_rating AS v
      ON a.id = v.content_id
      WHERE a.access IN (1,1,5)
      AND c.access IN (1,1,5)
      AND c.published = 1
      AND a.state = 1
      AND a.catid = 138
      AND (a.publish_up = '0000-00-00 00:00:00' OR a.publish_up <= '2021-01-20 03:56:29')
      AND (a.publish_down = '0000-00-00 00:00:00' OR a.publish_down >= '2021-01-20 03:56:29')
      AND a.language IN ('en-GB','*')
    Explain
    idselect_typetablepartitionstypepossible_keyskeykey_lenrefrowsfilteredExtra
    1SIMPLEcNULLconstPRIMARY,idx_accessPRIMARY4const1100.00NULL
    1SIMPLEaNULLrefidx_access,idx_state,idx_catid,idx_languageidx_catid4const110.13Using where
    1SIMPLEuaNULLeq_refPRIMARYPRIMARY4ID251146_db020376jooml51k9ksw2vyilnetabw.a.created_by1100.00Using where; Using index
    1SIMPLEuamNULLeq_refPRIMARYPRIMARY4ID251146_db020376jooml51k9ksw2vyilnetabw.a.modified_by1100.00Using where; Using index
    1SIMPLEparentNULLconstPRIMARYPRIMARY4const1100.00Using where; Using index
    1SIMPLEvNULLeq_refPRIMARYPRIMARY4ID251146_db020376jooml51k9ksw2vyilnetabw.a.id1100.00Using where; Using index
    Profile
    StatusDuration
    starting0.10 ms
    checking permissions0.00 ms
    checking permissions0.00 ms
    checking permissions0.00 ms
    checking permissions0.00 ms
    checking permissions0.00 ms
    checking permissions0.00 ms
    Opening tables0.03 ms
    init0.04 ms
    System lock0.01 ms
    optimizing0.03 ms
    statistics0.12 ms
    preparing0.02 ms
    executing0.00 ms
    Sending data0.07 ms
    end0.01 ms
    query end0.01 ms
    closing tables0.01 ms
    freeing items0.04 ms
    cleaning up0.01 ms
    Call Stack
    #CallerFile and line number
    19JDatabaseDriverMysqli->execute()JROOT/libraries/joomla/database/driver.php:1740
    18JDatabaseDriver->loadResult()JROOT/libraries/src/MVC/Model/BaseDatabaseModel.php:340
    17Joomla\CMS\MVC\Model\BaseDatabaseModel->_getListCount()JROOT/libraries/src/MVC/Model/ListModel.php:282
    16Joomla\CMS\MVC\Model\ListModel->getTotal()JROOT/libraries/src/MVC/Model/ListModel.php:232
    15Joomla\CMS\MVC\Model\ListModel->getPagination()JROOT/components/com_content/models/category.php:265
    14ContentModelCategory->getItems()JROOT/libraries/src/MVC/View/HtmlView.php:425
    13Joomla\CMS\MVC\View\HtmlView->get()JROOT/libraries/src/MVC/View/CategoryView.php:144
    12Joomla\CMS\MVC\View\CategoryView->commonCategoryDisplay()JROOT/components/com_content/views/category/view.html.php:75
    11ContentViewCategory->display()JROOT/libraries/src/Cache/Controller/ViewController.php:102
    10Joomla\CMS\Cache\Controller\ViewController->get()JROOT/libraries/src/MVC/Controller/BaseController.php:663
    9Joomla\CMS\MVC\Controller\BaseController->display()JROOT/components/com_content/controller.php:118
    8ContentController->display()JROOT/libraries/src/MVC/Controller/BaseController.php:710
    7Joomla\CMS\MVC\Controller\BaseController->execute()JROOT/components/com_content/content.php:43
    6require_once JROOT/components/com_content/content.phpJROOT/libraries/src/Component/ComponentHelper.php:402
    5Joomla\CMS\Component\ComponentHelper::executeComponent()JROOT/libraries/src/Component/ComponentHelper.php:377
    4Joomla\CMS\Component\ComponentHelper::renderComponent()JROOT/libraries/src/Application/SiteApplication.php:194
    3Joomla\CMS\Application\SiteApplication->dispatch()JROOT/libraries/src/Application/SiteApplication.php:233
    2Joomla\CMS\Application\SiteApplication->doExecute()JROOT/libraries/src/Application/CMSApplication.php:196
    1Joomla\CMS\Application\CMSApplication->execute()JROOT/index.php:49
    [Add xdebug.file_link_format directive to your php.ini file to have links for files.]

  14. Query Time: 0.30 ms After last query: 0.26 ms Query memory: 0.023 MB Memory before query: 4.112 MB Rows returned: 0
    SELECT `m`.`tag_id`,`t`.*
    
      FROM `jos_contentitem_tag_map` AS m
      INNER JOIN `jos_tags` AS t
      ON `m`.`tag_id` = `t`.`id`
      WHERE `m`.`type_alias` = 'com_content.category'
      AND `m`.`content_item_id` = 138
      AND `t`.`published` = 1
      AND t.access IN (1,1,5)
    Explain
    idselect_typetablepartitionstypepossible_keyskeykey_lenrefrowsfilteredExtra
    1SIMPLEmNULLALLidx_tag_typeNO INDEX KEY COULD BE USEDNULLNULL714.29Using where
    1SIMPLEtNULLeq_refPRIMARY,tag_idx,idx_accessPRIMARY4ID251146_db020376jooml51k9ksw2vyilnetabw.m.tag_id1100.00Using where
    Profile
    StatusDuration
    starting0.04 ms
    checking permissions0.00 ms
    checking permissions0.00 ms
    Opening tables0.01 ms
    init0.03 ms
    System lock0.00 ms
    optimizing0.01 ms
    statistics0.05 ms
    preparing0.01 ms
    executing0.00 ms
    Sending data0.03 ms
    end0.00 ms
    query end0.00 ms
    closing tables0.00 ms
    freeing items0.03 ms
    cleaning up0.01 ms
    Call Stack
    #CallerFile and line number
    15JDatabaseDriverMysqli->execute()JROOT/libraries/joomla/database/driver.php:1701
    14JDatabaseDriver->loadObjectList()JROOT/libraries/src/Helper/TagsHelper.php:454
    13Joomla\CMS\Helper\TagsHelper->getItemTags()JROOT/libraries/src/MVC/View/CategoryView.php:229
    12Joomla\CMS\MVC\View\CategoryView->commonCategoryDisplay()JROOT/components/com_content/views/category/view.html.php:75
    11ContentViewCategory->display()JROOT/libraries/src/Cache/Controller/ViewController.php:102
    10Joomla\CMS\Cache\Controller\ViewController->get()JROOT/libraries/src/MVC/Controller/BaseController.php:663
    9Joomla\CMS\MVC\Controller\BaseController->display()JROOT/components/com_content/controller.php:118
    8ContentController->display()JROOT/libraries/src/MVC/Controller/BaseController.php:710
    7Joomla\CMS\MVC\Controller\BaseController->execute()JROOT/components/com_content/content.php:43
    6require_once JROOT/components/com_content/content.phpJROOT/libraries/src/Component/ComponentHelper.php:402
    5Joomla\CMS\Component\ComponentHelper::executeComponent()JROOT/libraries/src/Component/ComponentHelper.php:377
    4Joomla\CMS\Component\ComponentHelper::renderComponent()JROOT/libraries/src/Application/SiteApplication.php:194
    3Joomla\CMS\Application\SiteApplication->dispatch()JROOT/libraries/src/Application/SiteApplication.php:233
    2Joomla\CMS\Application\SiteApplication->doExecute()JROOT/libraries/src/Application/CMSApplication.php:196
    1Joomla\CMS\Application\CMSApplication->execute()JROOT/index.php:49
    [Add xdebug.file_link_format directive to your php.ini file to have links for files.]

  15. Query Time: 0.80 ms After last query: 10.26 ms Query memory: 0.027 MB Memory before query: 4.234 MB Rows returned: 3
    SELECT c.id, c.asset_id, c.access, c.alias, c.checked_out, c.checked_out_time,
    				c.created_time, c.created_user_id, c.description, c.extension, c.hits, c.language, c.level,
    				c.lft, c.metadata, c.metadesc, c.metakey, c.modified_time, c.note, c.params, c.parent_id,
    				c.path, c.published, c.rgt, c.title, c.modified_user_id, c.version, 
      CASE WHEN CHAR_LENGTH(c.alias) != 0 THEN CONCAT_WS(':', c.id, c.alias) ELSE c.id END as slug
      FROM `jos_categories` AS `s`
      INNER JOIN `jos_categories` AS `c`
      ON (s.lft < c.lft
      AND c.lft < s.rgt
      AND c.language IN ('en-GB','*')) OR (c.lft <= s.lft
      AND s.rgt <= c.rgt)
      WHERE (c.extension='com_content' OR c.extension='system')
      AND c.access IN (1,1,5)
      AND c.published = 1
      AND s.id = 138
      ORDER BY c.lft
    Explain
    idselect_typetablepartitionstypepossible_keyskeykey_lenrefrowsfilteredExtra
    1SIMPLEsNULLconstPRIMARY,idx_left_rightPRIMARY4const1100.00Using filesort
    1SIMPLEcNULLALLcat_idx,idx_access,idx_left_right,idx_languageNO INDEX KEY COULD BE USEDNULLNULL12134.75Using where
    Profile
    StatusDuration
    starting0.14 ms
    checking permissions0.00 ms
    checking permissions0.00 ms
    Opening tables0.02 ms
    init0.06 ms
    System lock0.01 ms
    optimizing0.02 ms
    statistics0.13 ms
    preparing0.02 ms
    Sorting result0.00 ms
    executing0.00 ms
    Sending data0.02 ms
    Creating sort index0.20 ms
    end0.01 ms
    query end0.01 ms
    closing tables0.01 ms
    freeing items0.05 ms
    cleaning up0.01 ms
    Call Stack
    #CallerFile and line number
    22JDatabaseDriverMysqli->execute()JROOT/libraries/joomla/database/driver.php:1701
    21JDatabaseDriver->loadObjectList()JROOT/libraries/src/Categories/Categories.php:324
    20Joomla\CMS\Categories\Categories->_load()JROOT/libraries/src/Categories/Categories.php:184
    19Joomla\CMS\Categories\Categories->get()JROOT/administrator/components/com_fields/models/fields.php:203
    18FieldsModelFields->getListQuery()JROOT/libraries/src/MVC/Model/ListModel.php:133
    17Joomla\CMS\MVC\Model\ListModel->_getListQuery()JROOT/libraries/src/MVC/Model/ListModel.php:187
    16Joomla\CMS\MVC\Model\ListModel->getItems()JROOT/administrator/components/com_fields/helpers/fields.php:136
    15FieldsHelper::getFields()JROOT/plugins/system/fields/fields.php:495
    14PlgSystemFields->onContentPrepare()JROOT/libraries/joomla/event/event.php:70
    13JEvent->update()JROOT/libraries/joomla/event/dispatcher.php:160
    12JEventDispatcher->trigger()JROOT/components/com_content/views/category/view.html.php:113
    11ContentViewCategory->display()JROOT/libraries/src/Cache/Controller/ViewController.php:102
    10Joomla\CMS\Cache\Controller\ViewController->get()JROOT/libraries/src/MVC/Controller/BaseController.php:663
    9Joomla\CMS\MVC\Controller\BaseController->display()JROOT/components/com_content/controller.php:118
    8ContentController->display()JROOT/libraries/src/MVC/Controller/BaseController.php:710
    7Joomla\CMS\MVC\Controller\BaseController->execute()JROOT/components/com_content/content.php:43
    6require_once JROOT/components/com_content/content.phpJROOT/libraries/src/Component/ComponentHelper.php:402
    5Joomla\CMS\Component\ComponentHelper::executeComponent()JROOT/libraries/src/Component/ComponentHelper.php:377
    4Joomla\CMS\Component\ComponentHelper::renderComponent()JROOT/libraries/src/Application/SiteApplication.php:194
    3Joomla\CMS\Application\SiteApplication->dispatch()JROOT/libraries/src/Application/SiteApplication.php:233
    2Joomla\CMS\Application\SiteApplication->doExecute()JROOT/libraries/src/Application/CMSApplication.php:196
    1Joomla\CMS\Application\CMSApplication->execute()JROOT/index.php:49
    [Add xdebug.file_link_format directive to your php.ini file to have links for files.]

  16. Query Time: 1.07 ms After last query: 0.15 ms Query memory: 0.025 MB Memory before query: 4.258 MB Rows returned: 0
    SELECT DISTINCT a.id, a.title, a.name, a.checked_out, a.checked_out_time, a.note, a.state, a.access, a.created_time, a.created_user_id, a.ordering, a.language, a.fieldparams, a.params, a.type, a.default_value, a.context, a.group_id, a.label, a.description, a.required,l.title AS language_title, l.image AS language_image,uc.name AS editor,ag.title AS access_level,ua.name AS author_name,g.title AS group_title, g.access as group_access, g.state AS group_state, g.note as group_note
    
      FROM jos_fields AS a
      LEFT JOIN `jos_languages` AS l
      ON l.lang_code = a.language
      LEFT JOIN jos_users AS uc
      ON uc.id=a.checked_out
      LEFT JOIN jos_viewlevels AS ag
      ON ag.id = a.access
      LEFT JOIN jos_users AS ua
      ON ua.id = a.created_user_id
      LEFT JOIN jos_fields_groups AS g
      ON g.id = a.group_id
      LEFT JOIN `jos_fields_categories` AS fc
      ON fc.field_id = a.id
      WHERE a.context = 'com_content.article'
      AND (fc.category_id IS NULL OR fc.category_id IN (138,0,132))
      AND a.access IN (1,1,5)
      AND (a.group_id = 0 OR g.access IN (1,1,5))
      AND a.state = 1
      AND (a.group_id = 0 OR g.state = 1)
      AND a.language in ('*','en-GB')
      ORDER BY a.ordering ASC
    Explain
    idselect_typetablepartitionstypepossible_keyskeykey_lenrefrowsfilteredExtra
    1SIMPLEaNULLrefidx_state,idx_access,idx_context,idx_languageidx_state1const1100.00Using index condition; Using where; Using temporary; Using filesort
    1SIMPLElNULLeq_refidx_langcodeidx_langcode28ID251146_db020376jooml51k9ksw2vyilnetabw.a.language1100.00Using where
    1SIMPLEucNULLeq_refPRIMARYPRIMARY4ID251146_db020376jooml51k9ksw2vyilnetabw.a.checked_out1100.00NULL
    1SIMPLEagNULLeq_refPRIMARYPRIMARY4ID251146_db020376jooml51k9ksw2vyilnetabw.a.access1100.00Using where
    1SIMPLEuaNULLeq_refPRIMARYPRIMARY4ID251146_db020376jooml51k9ksw2vyilnetabw.a.created_user_id1100.00Using where
    1SIMPLEgNULLeq_refPRIMARYPRIMARY4ID251146_db020376jooml51k9ksw2vyilnetabw.a.group_id1100.00Using where
    1SIMPLEfcNULLrefPRIMARYPRIMARY4ID251146_db020376jooml51k9ksw2vyilnetabw.a.id1100.00Using where; Using index; Distinct
    Profile
    StatusDuration
    starting0.09 ms
    checking permissions0.00 ms
    checking permissions0.00 ms
    checking permissions0.00 ms
    checking permissions0.00 ms
    checking permissions0.00 ms
    checking permissions0.00 ms
    checking permissions0.00 ms
    Opening tables0.33 ms
    init0.05 ms
    System lock0.01 ms
    optimizing0.02 ms
    statistics0.10 ms
    preparing0.03 ms
    Creating tmp table0.04 ms
    Sorting result0.01 ms
    executing0.00 ms
    Sending data0.13 ms
    Creating sort index0.03 ms
    end0.00 ms
    query end0.01 ms
    removing tmp table0.03 ms
    query end0.00 ms
    closing tables0.02 ms
    freeing items0.06 ms
    cleaning up0.01 ms
    Call Stack
    #CallerFile and line number
    20JDatabaseDriverMysqli->execute()JROOT/libraries/joomla/database/driver.php:1701
    19JDatabaseDriver->loadObjectList()JROOT/libraries/src/MVC/Model/BaseDatabaseModel.php:308
    18Joomla\CMS\MVC\Model\BaseDatabaseModel->_getList()JROOT/administrator/components/com_fields/models/fields.php:333
    17FieldsModelFields->_getList()JROOT/libraries/src/MVC/Model/ListModel.php:187
    16Joomla\CMS\MVC\Model\ListModel->getItems()JROOT/administrator/components/com_fields/helpers/fields.php:136
    15FieldsHelper::getFields()JROOT/plugins/system/fields/fields.php:495
    14PlgSystemFields->onContentPrepare()JROOT/libraries/joomla/event/event.php:70
    13JEvent->update()JROOT/libraries/joomla/event/dispatcher.php:160
    12JEventDispatcher->trigger()JROOT/components/com_content/views/category/view.html.php:113
    11ContentViewCategory->display()JROOT/libraries/src/Cache/Controller/ViewController.php:102
    10Joomla\CMS\Cache\Controller\ViewController->get()JROOT/libraries/src/MVC/Controller/BaseController.php:663
    9Joomla\CMS\MVC\Controller\BaseController->display()JROOT/components/com_content/controller.php:118
    8ContentController->display()JROOT/libraries/src/MVC/Controller/BaseController.php:710
    7Joomla\CMS\MVC\Controller\BaseController->execute()JROOT/components/com_content/content.php:43
    6require_once JROOT/components/com_content/content.phpJROOT/libraries/src/Component/ComponentHelper.php:402
    5Joomla\CMS\Component\ComponentHelper::executeComponent()JROOT/libraries/src/Component/ComponentHelper.php:377
    4Joomla\CMS\Component\ComponentHelper::renderComponent()JROOT/libraries/src/Application/SiteApplication.php:194
    3Joomla\CMS\Application\SiteApplication->dispatch()JROOT/libraries/src/Application/SiteApplication.php:233
    2Joomla\CMS\Application\SiteApplication->doExecute()JROOT/libraries/src/Application/CMSApplication.php:196
    1Joomla\CMS\Application\CMSApplication->execute()JROOT/index.php:49
    [Add xdebug.file_link_format directive to your php.ini file to have links for files.]

  17. Query Time: 0.91 ms After last query: 9.51 ms Query memory: 0.029 MB Memory before query: 4.453 MB Rows returned: 0
    SELECT DISTINCT a.id, a.title, a.name, a.checked_out, a.checked_out_time, a.note, a.state, a.access, a.created_time, a.created_user_id, a.ordering, a.language, a.fieldparams, a.params, a.type, a.default_value, a.context, a.group_id, a.label, a.description, a.required,l.title AS language_title, l.image AS language_image,uc.name AS editor,ag.title AS access_level,ua.name AS author_name,g.title AS group_title, g.access as group_access, g.state AS group_state, g.note as group_note
    
      FROM jos_fields AS a
      LEFT JOIN `jos_languages` AS l
      ON l.lang_code = a.language
      LEFT JOIN jos_users AS uc
      ON uc.id=a.checked_out
      LEFT JOIN jos_viewlevels AS ag
      ON ag.id = a.access
      LEFT JOIN jos_users AS ua
      ON ua.id = a.created_user_id
      LEFT JOIN jos_fields_groups AS g
      ON g.id = a.group_id
      WHERE a.context = 'com_content.categories'
      AND a.access IN (1,1,5)
      AND (a.group_id = 0 OR g.access IN (1,1,5))
      AND a.state = 1
      AND (a.group_id = 0 OR g.state = 1)
      AND a.language in ('*','en-GB')
      ORDER BY a.ordering ASC
    Explain
    idselect_typetablepartitionstypepossible_keyskeykey_lenrefrowsfilteredExtra
    1SIMPLEaNULLrefidx_state,idx_access,idx_context,idx_languageidx_state1const1100.00Using index condition; Using where; Using temporary; Using filesort
    1SIMPLElNULLeq_refidx_langcodeidx_langcode28ID251146_db020376jooml51k9ksw2vyilnetabw.a.language1100.00Using where
    1SIMPLEucNULLeq_refPRIMARYPRIMARY4ID251146_db020376jooml51k9ksw2vyilnetabw.a.checked_out1100.00NULL
    1SIMPLEagNULLeq_refPRIMARYPRIMARY4ID251146_db020376jooml51k9ksw2vyilnetabw.a.access1100.00Using where
    1SIMPLEuaNULLeq_refPRIMARYPRIMARY4ID251146_db020376jooml51k9ksw2vyilnetabw.a.created_user_id1100.00Using where
    1SIMPLEgNULLeq_refPRIMARYPRIMARY4ID251146_db020376jooml51k9ksw2vyilnetabw.a.group_id1100.00Using where
    Profile
    StatusDuration
    starting0.15 ms
    checking permissions0.01 ms
    checking permissions0.00 ms
    checking permissions0.00 ms
    checking permissions0.00 ms
    checking permissions0.00 ms
    checking permissions0.01 ms
    Opening tables0.03 ms
    init0.06 ms
    System lock0.01 ms
    optimizing0.02 ms
    statistics0.12 ms
    preparing0.02 ms
    Creating tmp table0.04 ms
    Sorting result0.00 ms
    executing0.00 ms
    Sending data0.15 ms
    Creating sort index0.02 ms
    end0.00 ms
    query end0.01 ms
    removing tmp table0.02 ms
    query end0.00 ms
    closing tables0.01 ms
    freeing items0.06 ms
    cleaning up0.02 ms
    Call Stack
    #CallerFile and line number
    27JDatabaseDriverMysqli->execute()JROOT/libraries/joomla/database/driver.php:1701
    26JDatabaseDriver->loadObjectList()JROOT/libraries/src/MVC/Model/BaseDatabaseModel.php:308
    25Joomla\CMS\MVC\Model\BaseDatabaseModel->_getList()JROOT/administrator/components/com_fields/models/fields.php:333
    24FieldsModelFields->_getList()JROOT/libraries/src/MVC/Model/ListModel.php:187
    23Joomla\CMS\MVC\Model\ListModel->getItems()JROOT/administrator/components/com_fields/helpers/fields.php:136
    22FieldsHelper::getFields()JROOT/plugins/system/fields/fields.php:495
    21PlgSystemFields->onContentPrepare()JROOT/libraries/joomla/event/event.php:70
    20JEvent->update()JROOT/libraries/joomla/event/dispatcher.php:160
    19JEventDispatcher->trigger()JROOT/layouts/joomla/content/category_default.php:25
    18include JROOT/layouts/joomla/content/category_default.phpJROOT/libraries/src/Layout/FileLayout.php:125
    17Joomla\CMS\Layout\FileLayout->render()JROOT/libraries/src/Layout/LayoutHelper.php:73
    16Joomla\CMS\Layout\LayoutHelper::render()JROOT/components/com_content/views/category/tmpl/default.php:20
    15include JROOT/components/com_content/views/category/tmpl/default.phpJROOT/libraries/src/MVC/View/HtmlView.php:701
    14Joomla\CMS\MVC\View\HtmlView->loadTemplate()JROOT/libraries/src/MVC/View/HtmlView.php:230
    13Joomla\CMS\MVC\View\HtmlView->display()JROOT/libraries/src/MVC/View/CategoryView.php:245
    12Joomla\CMS\MVC\View\CategoryView->display()JROOT/components/com_content/views/category/view.html.php:250
    11ContentViewCategory->display()JROOT/libraries/src/Cache/Controller/ViewController.php:102
    10Joomla\CMS\Cache\Controller\ViewController->get()JROOT/libraries/src/MVC/Controller/BaseController.php:663
    9Joomla\CMS\MVC\Controller\BaseController->display()JROOT/components/com_content/controller.php:118
    8ContentController->display()JROOT/libraries/src/MVC/Controller/BaseController.php:710
    7Joomla\CMS\MVC\Controller\BaseController->execute()JROOT/components/com_content/content.php:43
    6require_once JROOT/components/com_content/content.phpJROOT/libraries/src/Component/ComponentHelper.php:402
    5Joomla\CMS\Component\ComponentHelper::executeComponent()JROOT/libraries/src/Component/ComponentHelper.php:377
    4Joomla\CMS\Component\ComponentHelper::renderComponent()JROOT/libraries/src/Application/SiteApplication.php:194
    3Joomla\CMS\Application\SiteApplication->dispatch()JROOT/libraries/src/Application/SiteApplication.php:233
    2Joomla\CMS\Application\SiteApplication->doExecute()JROOT/libraries/src/Application/CMSApplication.php:196
    1Joomla\CMS\Application\CMSApplication->execute()JROOT/index.php:49
    [Add xdebug.file_link_format directive to your php.ini file to have links for files.]

  18. Query Time: 0.83 ms After last query: 0.42 ms Query memory: 0.029 MB Memory before query: 4.475 MB Rows returned: 0
    SELECT DISTINCT a.id, a.title, a.name, a.checked_out, a.checked_out_time, a.note, a.state, a.access, a.created_time, a.created_user_id, a.ordering, a.language, a.fieldparams, a.params, a.type, a.default_value, a.context, a.group_id, a.label, a.description, a.required,l.title AS language_title, l.image AS language_image,uc.name AS editor,ag.title AS access_level,ua.name AS author_name,g.title AS group_title, g.access as group_access, g.state AS group_state, g.note as group_note
    
      FROM jos_fields AS a
      LEFT JOIN `jos_languages` AS l
      ON l.lang_code = a.language
      LEFT JOIN jos_users AS uc
      ON uc.id=a.checked_out
      LEFT JOIN jos_viewlevels AS ag
      ON ag.id = a.access
      LEFT JOIN jos_users AS ua
      ON ua.id = a.created_user_id
      LEFT JOIN jos_fields_groups AS g
      ON g.id = a.group_id
      LEFT JOIN `jos_fields_categories` AS fc
      ON fc.field_id = a.id
      WHERE a.context = 'com_content.categories'
      AND (fc.category_id IS NULL OR fc.category_id IN (138,0,132))
      AND a.access IN (1,1,5)
      AND (a.group_id = 0 OR g.access IN (1,1,5))
      AND a.state = 1
      AND (a.group_id = 0 OR g.state = 1)
      AND a.language in ('*','en-GB')
      ORDER BY a.ordering ASC
    Explain
    idselect_typetablepartitionstypepossible_keyskeykey_lenrefrowsfilteredExtra
    1SIMPLEaNULLrefidx_state,idx_access,idx_context,idx_languageidx_state1const1100.00Using index condition; Using where; Using temporary; Using filesort
    1SIMPLElNULLeq_refidx_langcodeidx_langcode28ID251146_db020376jooml51k9ksw2vyilnetabw.a.language1100.00Using where
    1SIMPLEucNULLeq_refPRIMARYPRIMARY4ID251146_db020376jooml51k9ksw2vyilnetabw.a.checked_out1100.00NULL
    1SIMPLEagNULLeq_refPRIMARYPRIMARY4ID251146_db020376jooml51k9ksw2vyilnetabw.a.access1100.00Using where
    1SIMPLEuaNULLeq_refPRIMARYPRIMARY4ID251146_db020376jooml51k9ksw2vyilnetabw.a.created_user_id1100.00Using where
    1SIMPLEgNULLeq_refPRIMARYPRIMARY4ID251146_db020376jooml51k9ksw2vyilnetabw.a.group_id1100.00Using where
    1SIMPLEfcNULLrefPRIMARYPRIMARY4ID251146_db020376jooml51k9ksw2vyilnetabw.a.id1100.00Using where; Using index; Distinct
    Profile
    StatusDuration
    starting0.12 ms
    checking permissions0.00 ms
    checking permissions0.00 ms
    checking permissions0.00 ms
    checking permissions0.00 ms
    checking permissions0.01 ms
    checking permissions0.00 ms
    checking permissions0.00 ms
    Opening tables0.03 ms
    init0.05 ms
    System lock0.01 ms
    optimizing0.02 ms
    statistics0.11 ms
    preparing0.02 ms
    Creating tmp table0.04 ms
    Sorting result0.01 ms
    executing0.00 ms
    Sending data0.16 ms
    Creating sort index0.03 ms
    end0.00 ms
    query end0.01 ms
    removing tmp table0.03 ms
    query end0.00 ms
    closing tables0.01 ms
    freeing items0.05 ms
    cleaning up0.01 ms
    Call Stack
    #CallerFile and line number
    28JDatabaseDriverMysqli->execute()JROOT/libraries/joomla/database/driver.php:1701
    27JDatabaseDriver->loadObjectList()JROOT/libraries/src/MVC/Model/BaseDatabaseModel.php:308
    26Joomla\CMS\MVC\Model\BaseDatabaseModel->_getList()JROOT/administrator/components/com_fields/models/fields.php:333
    25FieldsModelFields->_getList()JROOT/libraries/src/MVC/Model/ListModel.php:187
    24Joomla\CMS\MVC\Model\ListModel->getItems()JROOT/administrator/components/com_fields/helpers/fields.php:136
    23FieldsHelper::getFields()JROOT/plugins/system/fields/fields.php:404
    22PlgSystemFields->display()JROOT/plugins/system/fields/fields.php:324
    21PlgSystemFields->onContentAfterTitle()JROOT/libraries/joomla/event/event.php:70
    20JEvent->update()JROOT/libraries/joomla/event/dispatcher.php:160
    19JEventDispatcher->trigger()JROOT/layouts/joomla/content/category_default.php:28
    18include JROOT/layouts/joomla/content/category_default.phpJROOT/libraries/src/Layout/FileLayout.php:125
    17Joomla\CMS\Layout\FileLayout->render()JROOT/libraries/src/Layout/LayoutHelper.php:73
    16Joomla\CMS\Layout\LayoutHelper::render()JROOT/components/com_content/views/category/tmpl/default.php:20
    15include JROOT/components/com_content/views/category/tmpl/default.phpJROOT/libraries/src/MVC/View/HtmlView.php:701
    14Joomla\CMS\MVC\View\HtmlView->loadTemplate()JROOT/libraries/src/MVC/View/HtmlView.php:230
    13Joomla\CMS\MVC\View\HtmlView->display()JROOT/libraries/src/MVC/View/CategoryView.php:245
    12Joomla\CMS\MVC\View\CategoryView->display()JROOT/components/com_content/views/category/view.html.php:250
    11ContentViewCategory->display()JROOT/libraries/src/Cache/Controller/ViewController.php:102
    10Joomla\CMS\Cache\Controller\ViewController->get()JROOT/libraries/src/MVC/Controller/BaseController.php:663
    9Joomla\CMS\MVC\Controller\BaseController->display()JROOT/components/com_content/controller.php:118
    8ContentController->display()JROOT/libraries/src/MVC/Controller/BaseController.php:710
    7Joomla\CMS\MVC\Controller\BaseController->execute()JROOT/components/com_content/content.php:43
    6require_once JROOT/components/com_content/content.phpJROOT/libraries/src/Component/ComponentHelper.php:402
    5Joomla\CMS\Component\ComponentHelper::executeComponent()JROOT/libraries/src/Component/ComponentHelper.php:377
    4Joomla\CMS\Component\ComponentHelper::renderComponent()JROOT/libraries/src/Application/SiteApplication.php:194
    3Joomla\CMS\Application\SiteApplication->dispatch()JROOT/libraries/src/Application/SiteApplication.php:233
    2Joomla\CMS\Application\SiteApplication->doExecute()JROOT/libraries/src/Application/CMSApplication.php:196
    1Joomla\CMS\Application\CMSApplication->execute()JROOT/index.php:49
    [Add xdebug.file_link_format directive to your php.ini file to have links for files.]

  19. Query Time: 0.68 ms After last query: 0.65 ms Query memory: 0.030 MB Memory before query: 4.491 MB Rows returned: 0
    SELECT DISTINCT a.id, a.title, a.name, a.checked_out, a.checked_out_time, a.note, a.state, a.access, a.created_time, a.created_user_id, a.ordering, a.language, a.fieldparams, a.params, a.type, a.default_value, a.context, a.group_id, a.label, a.description, a.required,l.title AS language_title, l.image AS language_image,uc.name AS editor,ag.title AS access_level,ua.name AS author_name,g.title AS group_title, g.access as group_access, g.state AS group_state, g.note as group_note
    
      FROM jos_fields AS a
      LEFT JOIN `jos_languages` AS l
      ON l.lang_code = a.language
      LEFT JOIN jos_users AS uc
      ON uc.id=a.checked_out
      LEFT JOIN jos_viewlevels AS ag
      ON ag.id = a.access
      LEFT JOIN jos_users AS ua
      ON ua.id = a.created_user_id
      LEFT JOIN jos_fields_groups AS g
      ON g.id = a.group_id
      WHERE a.context = 'com_content.category.title'
      AND a.access IN (1,1,5)
      AND (a.group_id = 0 OR g.access IN (1,1,5))
      AND a.state = 1
      AND (a.group_id = 0 OR g.state = 1)
      AND a.language in ('*','en-GB')
      ORDER BY a.ordering ASC
    Explain
    idselect_typetablepartitionstypepossible_keyskeykey_lenrefrowsfilteredExtra
    1SIMPLEaNULLrefidx_state,idx_access,idx_context,idx_languageidx_state1const1100.00Using index condition; Using where; Using temporary; Using filesort
    1SIMPLElNULLeq_refidx_langcodeidx_langcode28ID251146_db020376jooml51k9ksw2vyilnetabw.a.language1100.00Using where
    1SIMPLEucNULLeq_refPRIMARYPRIMARY4ID251146_db020376jooml51k9ksw2vyilnetabw.a.checked_out1100.00NULL
    1SIMPLEagNULLeq_refPRIMARYPRIMARY4ID251146_db020376jooml51k9ksw2vyilnetabw.a.access1100.00Using where
    1SIMPLEuaNULLeq_refPRIMARYPRIMARY4ID251146_db020376jooml51k9ksw2vyilnetabw.a.created_user_id1100.00Using where
    1SIMPLEgNULLeq_refPRIMARYPRIMARY4ID251146_db020376jooml51k9ksw2vyilnetabw.a.group_id1100.00Using where
    Profile
    StatusDuration
    starting0.11 ms
    checking permissions0.01 ms
    checking permissions0.00 ms
    checking permissions0.00 ms
    checking permissions0.00 ms
    checking permissions0.00 ms
    checking permissions0.00 ms
    Opening tables0.02 ms
    init0.05 ms
    System lock0.01 ms
    optimizing0.02 ms
    statistics0.09 ms
    preparing0.02 ms
    Creating tmp table0.03 ms
    Sorting result0.00 ms
    executing0.01 ms
    Sending data0.11 ms
    Creating sort index0.02 ms
    end0.00 ms
    query end0.01 ms
    removing tmp table0.02 ms
    query end0.00 ms
    closing tables0.01 ms
    freeing items0.05 ms
    cleaning up0.01 ms
    Call Stack
    #CallerFile and line number
    31JDatabaseDriverMysqli->execute()JROOT/libraries/joomla/database/driver.php:1701
    30JDatabaseDriver->loadObjectList()JROOT/libraries/src/MVC/Model/BaseDatabaseModel.php:308
    29Joomla\CMS\MVC\Model\BaseDatabaseModel->_getList()JROOT/administrator/components/com_fields/models/fields.php:333
    28FieldsModelFields->_getList()JROOT/libraries/src/MVC/Model/ListModel.php:187
    27Joomla\CMS\MVC\Model\ListModel->getItems()JROOT/administrator/components/com_fields/helpers/fields.php:136
    26FieldsHelper::getFields()JROOT/plugins/system/fields/fields.php:495
    25PlgSystemFields->onContentPrepare()JROOT/libraries/joomla/event/event.php:70
    24JEvent->update()JROOT/libraries/joomla/event/dispatcher.php:160
    23JEventDispatcher->trigger()JROOT/libraries/cms/html/content.php:41
    22JHtmlContent::prepare()Same as call in the line below.
    21call_user_func_array()JROOT/libraries/src/HTML/HTMLHelper.php:239
    20Joomla\CMS\HTML\HTMLHelper::call()JROOT/libraries/src/HTML/HTMLHelper.php:146
    19Joomla\CMS\HTML\HTMLHelper::_()JROOT/layouts/joomla/content/category_default.php:57
    18include JROOT/layouts/joomla/content/category_default.phpJROOT/libraries/src/Layout/FileLayout.php:125
    17Joomla\CMS\Layout\FileLayout->render()JROOT/libraries/src/Layout/LayoutHelper.php:73
    16Joomla\CMS\Layout\LayoutHelper::render()JROOT/components/com_content/views/category/tmpl/default.php:20
    15include JROOT/components/com_content/views/category/tmpl/default.phpJROOT/libraries/src/MVC/View/HtmlView.php:701
    14Joomla\CMS\MVC\View\HtmlView->loadTemplate()JROOT/libraries/src/MVC/View/HtmlView.php:230
    13Joomla\CMS\MVC\View\HtmlView->display()JROOT/libraries/src/MVC/View/CategoryView.php:245
    12Joomla\CMS\MVC\View\CategoryView->display()JROOT/components/com_content/views/category/view.html.php:250
    11ContentViewCategory->display()JROOT/libraries/src/Cache/Controller/ViewController.php:102
    10Joomla\CMS\Cache\Controller\ViewController->get()JROOT/libraries/src/MVC/Controller/BaseController.php:663
    9Joomla\CMS\MVC\Controller\BaseController->display()JROOT/components/com_content/controller.php:118
    8ContentController->display()JROOT/libraries/src/MVC/Controller/BaseController.php:710
    7Joomla\CMS\MVC\Controller\BaseController->execute()JROOT/components/com_content/content.php:43
    6require_once JROOT/components/com_content/content.phpJROOT/libraries/src/Component/ComponentHelper.php:402
    5Joomla\CMS\Component\ComponentHelper::executeComponent()JROOT/libraries/src/Component/ComponentHelper.php:377
    4Joomla\CMS\Component\ComponentHelper::renderComponent()JROOT/libraries/src/Application/SiteApplication.php:194
    3Joomla\CMS\Application\SiteApplication->dispatch()JROOT/libraries/src/Application/SiteApplication.php:233
    2Joomla\CMS\Application\SiteApplication->doExecute()JROOT/libraries/src/Application/CMSApplication.php:196
    1Joomla\CMS\Application\CMSApplication->execute()JROOT/index.php:49
    [Add xdebug.file_link_format directive to your php.ini file to have links for files.]

  20. Query Time: 1.00 ms After last query: 1.84 ms Query memory: 0.030 MB Memory before query: 4.507 MB Rows returned: 0
    SELECT DISTINCT a.id, a.title, a.name, a.checked_out, a.checked_out_time, a.note, a.state, a.access, a.created_time, a.created_user_id, a.ordering, a.language, a.fieldparams, a.params, a.type, a.default_value, a.context, a.group_id, a.label, a.description, a.required,l.title AS language_title, l.image AS language_image,uc.name AS editor,ag.title AS access_level,ua.name AS author_name,g.title AS group_title, g.access as group_access, g.state AS group_state, g.note as group_note
    
      FROM jos_fields AS a
      LEFT JOIN `jos_languages` AS l
      ON l.lang_code = a.language
      LEFT JOIN jos_users AS uc
      ON uc.id=a.checked_out
      LEFT JOIN jos_viewlevels AS ag
      ON ag.id = a.access
      LEFT JOIN jos_users AS ua
      ON ua.id = a.created_user_id
      LEFT JOIN jos_fields_groups AS g
      ON g.id = a.group_id
      WHERE a.context = 'com_content.category.description'
      AND a.access IN (1,1,5)
      AND (a.group_id = 0 OR g.access IN (1,1,5))
      AND a.state = 1
      AND (a.group_id = 0 OR g.state = 1)
      AND a.language in ('*','en-GB')
      ORDER BY a.ordering ASC
    Explain
    idselect_typetablepartitionstypepossible_keyskeykey_lenrefrowsfilteredExtra
    1SIMPLEaNULLrefidx_state,idx_access,idx_context,idx_languageidx_state1const1100.00Using index condition; Using where; Using temporary; Using filesort
    1SIMPLElNULLeq_refidx_langcodeidx_langcode28ID251146_db020376jooml51k9ksw2vyilnetabw.a.language1100.00Using where
    1SIMPLEucNULLeq_refPRIMARYPRIMARY4ID251146_db020376jooml51k9ksw2vyilnetabw.a.checked_out1100.00NULL
    1SIMPLEagNULLeq_refPRIMARYPRIMARY4ID251146_db020376jooml51k9ksw2vyilnetabw.a.access1100.00Using where
    1SIMPLEuaNULLeq_refPRIMARYPRIMARY4ID251146_db020376jooml51k9ksw2vyilnetabw.a.created_user_id1100.00Using where
    1SIMPLEgNULLeq_refPRIMARYPRIMARY4ID251146_db020376jooml51k9ksw2vyilnetabw.a.group_id1100.00Using where
    Profile
    StatusDuration
    starting0.15 ms
    checking permissions0.00 ms
    checking permissions0.00 ms
    checking permissions0.00 ms
    checking permissions0.00 ms
    checking permissions0.00 ms
    checking permissions0.00 ms
    Opening tables0.03 ms
    init0.06 ms
    System lock0.01 ms
    optimizing0.02 ms
    statistics0.17 ms
    preparing0.03 ms
    Creating tmp table0.05 ms
    Sorting result0.01 ms
    executing0.00 ms
    Sending data0.18 ms
    Creating sort index0.03 ms
    end0.00 ms
    query end0.01 ms
    removing tmp table0.03 ms
    query end0.00 ms
    closing tables0.01 ms
    freeing items0.07 ms
    cleaning up0.01 ms
    Call Stack
    #CallerFile and line number
    31JDatabaseDriverMysqli->execute()JROOT/libraries/joomla/database/driver.php:1701
    30JDatabaseDriver->loadObjectList()JROOT/libraries/src/MVC/Model/BaseDatabaseModel.php:308
    29Joomla\CMS\MVC\Model\BaseDatabaseModel->_getList()JROOT/administrator/components/com_fields/models/fields.php:333
    28FieldsModelFields->_getList()JROOT/libraries/src/MVC/Model/ListModel.php:187
    27Joomla\CMS\MVC\Model\ListModel->getItems()JROOT/administrator/components/com_fields/helpers/fields.php:136
    26FieldsHelper::getFields()JROOT/plugins/system/fields/fields.php:495
    25PlgSystemFields->onContentPrepare()JROOT/libraries/joomla/event/event.php:70
    24JEvent->update()JROOT/libraries/joomla/event/dispatcher.php:160
    23JEventDispatcher->trigger()JROOT/libraries/cms/html/content.php:41
    22JHtmlContent::prepare()Same as call in the line below.
    21call_user_func_array()JROOT/libraries/src/HTML/HTMLHelper.php:239
    20Joomla\CMS\HTML\HTMLHelper::call()JROOT/libraries/src/HTML/HTMLHelper.php:111
    19Joomla\CMS\HTML\HTMLHelper::_()JROOT/layouts/joomla/content/category_default.php:73
    18include JROOT/layouts/joomla/content/category_default.phpJROOT/libraries/src/Layout/FileLayout.php:125
    17Joomla\CMS\Layout\FileLayout->render()JROOT/libraries/src/Layout/LayoutHelper.php:73
    16Joomla\CMS\Layout\LayoutHelper::render()JROOT/components/com_content/views/category/tmpl/default.php:20
    15include JROOT/components/com_content/views/category/tmpl/default.phpJROOT/libraries/src/MVC/View/HtmlView.php:701
    14Joomla\CMS\MVC\View\HtmlView->loadTemplate()JROOT/libraries/src/MVC/View/HtmlView.php:230
    13Joomla\CMS\MVC\View\HtmlView->display()JROOT/libraries/src/MVC/View/CategoryView.php:245
    12Joomla\CMS\MVC\View\CategoryView->display()JROOT/components/com_content/views/category/view.html.php:250
    11ContentViewCategory->display()JROOT/libraries/src/Cache/Controller/ViewController.php:102
    10Joomla\CMS\Cache\Controller\ViewController->get()JROOT/libraries/src/MVC/Controller/BaseController.php:663
    9Joomla\CMS\MVC\Controller\BaseController->display()JROOT/components/com_content/controller.php:118
    8ContentController->display()JROOT/libraries/src/MVC/Controller/BaseController.php:710
    7Joomla\CMS\MVC\Controller\BaseController->execute()JROOT/components/com_content/content.php:43
    6require_once JROOT/components/com_content/content.phpJROOT/libraries/src/Component/ComponentHelper.php:402
    5Joomla\CMS\Component\ComponentHelper::executeComponent()JROOT/libraries/src/Component/ComponentHelper.php:377
    4Joomla\CMS\Component\ComponentHelper::renderComponent()JROOT/libraries/src/Application/SiteApplication.php:194
    3Joomla\CMS\Application\SiteApplication->dispatch()JROOT/libraries/src/Application/SiteApplication.php:233
    2Joomla\CMS\Application\SiteApplication->doExecute()JROOT/libraries/src/Application/CMSApplication.php:196
    1Joomla\CMS\Application\CMSApplication->execute()JROOT/index.php:49
    [Add xdebug.file_link_format directive to your php.ini file to have links for files.]

  21. Query Time: 0.93 ms After last query: 5.18 ms Query memory: 0.021 MB Memory before query: 4.482 MB Rows returned: 3
    SELECT language,id
    
      FROM `jos_menu`
      WHERE home = 1
      AND published = 1
      AND client_id = 0
    Explain
    idselect_typetablepartitionstypepossible_keyskeykey_lenrefrowsfilteredExtra
    1SIMPLEjos_menuNULLrefidx_client_id_parent_id_alias_languageidx_client_id_parent_id_alias_language1const1691.00Using where
    Profile
    StatusDuration
    starting0.09 ms
    checking permissions0.01 ms
    Opening tables0.11 ms
    init0.02 ms
    System lock0.01 ms
    optimizing0.01 ms
    statistics0.05 ms
    preparing0.02 ms
    executing0.00 ms
    Sending data0.40 ms
    end0.01 ms
    query end0.01 ms
    closing tables0.01 ms
    freeing items0.07 ms
    cleaning up0.01 ms
    Call Stack
    #CallerFile and line number
    10JDatabaseDriverMysqli->execute()JROOT/libraries/joomla/database/driver.php:1701
    9JDatabaseDriver->loadObjectList()JROOT/libraries/src/Language/Multilanguage.php:107
    8Joomla\CMS\Language\Multilanguage::getSiteHomePages()JROOT/plugins/system/languagefilter/languagefilter.php:751
    7PlgSystemLanguageFilter->onAfterDispatch()JROOT/libraries/joomla/event/event.php:70
    6JEvent->update()JROOT/libraries/joomla/event/dispatcher.php:160
    5JEventDispatcher->trigger()JROOT/libraries/src/Application/BaseApplication.php:108
    4Joomla\CMS\Application\BaseApplication->triggerEvent()JROOT/libraries/src/Application/SiteApplication.php:199
    3Joomla\CMS\Application\SiteApplication->dispatch()JROOT/libraries/src/Application/SiteApplication.php:233
    2Joomla\CMS\Application\SiteApplication->doExecute()JROOT/libraries/src/Application/CMSApplication.php:196
    1Joomla\CMS\Application\CMSApplication->execute()JROOT/index.php:49
    [Add xdebug.file_link_format directive to your php.ini file to have links for files.]

  22. Query Time: 0.51 ms After last query: 0.35 ms Query memory: 0.021 MB Memory before query: 4.495 MB Rows returned: 0
    SELECT `c2`.`language`,`c2`.`id`
    
      FROM `jos_menu` AS `c`
      INNER JOIN `jos_associations` AS `a`
      ON a.id = c.`id`
      AND a.context='com_menus.item'
      INNER JOIN `jos_associations` AS `a2`
      ON `a`.`key` = `a2`.`key`
      INNER JOIN `jos_menu` AS `c2`
      ON a2.id = c2.`id`
      WHERE c.id = 435
    Explain
    idselect_typetablepartitionstypepossible_keyskeykey_lenrefrowsfilteredExtra
    1SIMPLENULLNULLNULLNULLNO INDEX KEY COULD BE USEDNULLNULLNULLNULLno matching row in const table
    Profile
    StatusDuration
    starting0.07 ms
    checking permissions0.01 ms
    checking permissions0.00 ms
    checking permissions0.00 ms
    checking permissions0.00 ms
    Opening tables0.19 ms
    init0.03 ms
    System lock0.01 ms
    optimizing0.01 ms
    statistics0.06 ms
    executing0.01 ms
    end0.00 ms
    query end0.00 ms
    closing tables0.00 ms
    freeing items0.03 ms
    cleaning up0.01 ms
    Call Stack
    #CallerFile and line number
    11JDatabaseDriverMysqli->execute()JROOT/libraries/joomla/database/driver.php:1701
    10JDatabaseDriver->loadObjectList()JROOT/libraries/src/Language/Associations.php:115
    9Joomla\CMS\Language\Associations::getAssociations()JROOT/administrator/components/com_menus/helpers/menus.php:321
    8MenusHelper::getAssociations()JROOT/plugins/system/languagefilter/languagefilter.php:768
    7PlgSystemLanguageFilter->onAfterDispatch()JROOT/libraries/joomla/event/event.php:70
    6JEvent->update()JROOT/libraries/joomla/event/dispatcher.php:160
    5JEventDispatcher->trigger()JROOT/libraries/src/Application/BaseApplication.php:108
    4Joomla\CMS\Application\BaseApplication->triggerEvent()JROOT/libraries/src/Application/SiteApplication.php:199
    3Joomla\CMS\Application\SiteApplication->dispatch()JROOT/libraries/src/Application/SiteApplication.php:233
    2Joomla\CMS\Application\SiteApplication->doExecute()JROOT/libraries/src/Application/CMSApplication.php:196
    1Joomla\CMS\Application\CMSApplication->execute()JROOT/index.php:49
    [Add xdebug.file_link_format directive to your php.ini file to have links for files.]

  23. Query Time: 0.31 ms After last query: 0.32 ms Query memory: 0.021 MB Memory before query: 4.502 MB Rows returned: 0
    SELECT `c2`.`language`,CONCAT_WS(':', `c2`.`id`, `c2`.`alias`) AS `id`
    
      FROM `jos_categories` AS `c`
      INNER JOIN `jos_associations` AS `a`
      ON a.id = c.`id`
      AND a.context='com_categories.item'
      INNER JOIN `jos_associations` AS `a2`
      ON `a`.`key` = `a2`.`key`
      INNER JOIN `jos_categories` AS `c2`
      ON a2.id = c2.`id`
      AND c2.extension = 'com_content'
      WHERE c.id = 138
      AND c.extension = 'com_content'
    Explain
    idselect_typetablepartitionstypepossible_keyskeykey_lenrefrowsfilteredExtra
    1SIMPLENULLNULLNULLNULLNO INDEX KEY COULD BE USEDNULLNULLNULLNULLno matching row in const table
    Profile
    StatusDuration
    starting0.06 ms
    checking permissions0.00 ms
    checking permissions0.00 ms
    checking permissions0.00 ms
    checking permissions0.00 ms
    Opening tables0.01 ms
    init0.02 ms
    System lock0.00 ms
    optimizing0.01 ms
    statistics0.08 ms
    executing0.01 ms
    end0.00 ms
    query end0.00 ms
    closing tables0.00 ms
    freeing items0.03 ms
    cleaning up0.01 ms
    Call Stack
    #CallerFile and line number
    13JDatabaseDriverMysqli->execute()JROOT/libraries/joomla/database/driver.php:1701
    12JDatabaseDriver->loadObjectList()JROOT/libraries/src/Language/Associations.php:115
    11Joomla\CMS\Language\Associations::getAssociations()JROOT/administrator/components/com_categories/helpers/categories.php:113
    10CategoriesHelper::getAssociations()JROOT/administrator/components/com_categories/helpers/association.php:44
    9CategoryHelperAssociation::getCategoryAssociations()JROOT/components/com_content/helpers/association.php:91
    8ContentHelperAssociation::getAssociations()JROOT/plugins/system/languagefilter/languagefilter.php:783
    7PlgSystemLanguageFilter->onAfterDispatch()JROOT/libraries/joomla/event/event.php:70
    6JEvent->update()JROOT/libraries/joomla/event/dispatcher.php:160
    5JEventDispatcher->trigger()JROOT/libraries/src/Application/BaseApplication.php:108
    4Joomla\CMS\Application\BaseApplication->triggerEvent()JROOT/libraries/src/Application/SiteApplication.php:199
    3Joomla\CMS\Application\SiteApplication->dispatch()JROOT/libraries/src/Application/SiteApplication.php:233
    2Joomla\CMS\Application\SiteApplication->doExecute()JROOT/libraries/src/Application/CMSApplication.php:196
    1Joomla\CMS\Application\CMSApplication->execute()JROOT/index.php:49
    [Add xdebug.file_link_format directive to your php.ini file to have links for files.]

  24. Query Time: 0.94 ms After last query: 4.69 ms Query memory: 0.024 MB Memory before query: 4.558 MB Rows returned: 12
    SELECT m.id, m.title, m.module, m.position, m.content, m.showtitle, m.params, mm.menuid
    
      FROM jos_modules AS m
      LEFT JOIN jos_modules_menu AS mm
      ON mm.moduleid = m.id
      LEFT JOIN jos_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 <= '2021-01-20 03:56:29')
      AND (m.publish_down = '0000-00-00 00:00:00' OR m.publish_down >= '2021-01-20 03:56:29')
      AND m.access IN (1,1,5)
      AND m.client_id = 0
      AND (mm.menuid = 435 OR mm.menuid <= 0)
      AND m.language IN ('en-GB','*')
      ORDER BY m.position, m.ordering
    Explain
    idselect_typetablepartitionstypepossible_keyskeykey_lenrefrowsfilteredExtra
    1SIMPLEmNULLALLPRIMARY,published,newsfeeds,idx_languageNO INDEX KEY COULD BE USEDNULLNULL631.59Using where; Using filesort
    1SIMPLEeNULLrefelement_clientid,element_folder_clientidelement_clientid403ID251146_db020376jooml51k9ksw2vyilnetabw.m.module,const110.00Using index condition; Using where
    1SIMPLEmmNULLrefPRIMARYPRIMARY4ID251146_db020376jooml51k9ksw2vyilnetabw.m.id140.00Using where; Using index
    Profile
    StatusDuration
    starting0.11 ms
    checking permissions0.00 ms
    checking permissions0.00 ms
    checking permissions0.01 ms
    Opening tables0.12 ms
    init0.05 ms
    System lock0.01 ms
    optimizing0.02 ms
    statistics0.11 ms
    preparing0.03 ms
    Sorting result0.01 ms
    executing0.00 ms
    Sending data0.01 ms
    Creating sort index0.27 ms
    end0.00 ms
    query end0.01 ms
    closing tables0.01 ms
    freeing items0.05 ms
    cleaning up0.01 ms
    Call Stack
    #CallerFile and line number
    15JDatabaseDriverMysqli->execute()JROOT/libraries/joomla/database/driver.php:1701
    14JDatabaseDriver->loadObjectList()Same as call in the line below.
    13call_user_func_array()JROOT/libraries/src/Cache/Controller/CallbackController.php:173
    12Joomla\CMS\Cache\Controller\CallbackController->get()JROOT/libraries/src/Helper/ModuleHelper.php:432
    11Joomla\CMS\Helper\ModuleHelper::getModuleList()JROOT/libraries/src/Helper/ModuleHelper.php:362
    10Joomla\CMS\Helper\ModuleHelper::load()JROOT/libraries/src/Helper/ModuleHelper.php:87
    9Joomla\CMS\Helper\ModuleHelper::getModules()JROOT/libraries/src/Document/HtmlDocument.php:591
    8Joomla\CMS\Document\HtmlDocument->countModules()JROOT/templates/protostarplus-eighteen/index.php:71
    7require JROOT/templates/protostarplus-eighteen/index.phpJROOT/libraries/src/Document/HtmlDocument.php:668
    6Joomla\CMS\Document\HtmlDocument->_loadTemplate()JROOT/libraries/src/Document/HtmlDocument.php:730
    5Joomla\CMS\Document\HtmlDocument->_fetchTemplate()JROOT/libraries/src/Document/HtmlDocument.php:545
    4Joomla\CMS\Document\HtmlDocument->parse()JROOT/libraries/src/Application/CMSApplication.php:1030
    3Joomla\CMS\Application\CMSApplication->render()JROOT/libraries/src/Application/SiteApplication.php:778
    2Joomla\CMS\Application\SiteApplication->render()JROOT/libraries/src/Application/CMSApplication.php:202
    1Joomla\CMS\Application\CMSApplication->execute()JROOT/index.php:49
    [Add xdebug.file_link_format directive to your php.ini file to have links for files.]

  25. Query Time: 0.56 ms After last query: 67.93 ms Query memory: 0.024 MB Memory before query: 5.166 MB Rows returned: 39
    SELECT name, element AS `option`
    
      FROM jos_extensions
      WHERE type = 'component'
      AND enabled = 1
      ORDER BY name ASC
    Explain
    idselect_typetablepartitionstypepossible_keyskeykey_lenrefrowsfilteredExtra
    1SIMPLEjos_extensionsNULLrefextensionextension82const4010.00Using index condition; Using where; Using filesort
    Profile
    StatusDuration
    starting0.07 ms
    checking permissions0.01 ms
    Opening tables0.02 ms
    init0.02 ms
    System lock0.01 ms
    optimizing0.01 ms
    statistics0.05 ms
    preparing0.01 ms
    Sorting result0.00 ms
    executing0.00 ms
    Sending data0.01 ms
    Creating sort index0.18 ms
    end0.00 ms
    query end0.01 ms
    closing tables0.00 ms
    freeing items0.04 ms
    cleaning up0.01 ms
    Call Stack
    #CallerFile and line number
    14JDatabaseDriverMysqli->execute()JROOT/libraries/joomla/database/driver.php:1701
    13JDatabaseDriver->loadObjectList()JROOT/administrator/components/com_menus/models/menutypes.php:90
    12MenusModelMenutypes->getTypeOptions()JROOT/plugins/system/betterpreview/src/Component/Link.php:35
    11RegularLabs\Plugin\System\BetterPreview\Component\Link->__construct()JROOT/plugins/system/betterpreview/src/Component.php:29
    10RegularLabs\Plugin\System\BetterPreview\Component::getClass()JROOT/plugins/system/betterpreview/betterpreview.php:190
    9PlgSystemBetterPreview->getClass()JROOT/plugins/system/betterpreview/betterpreview.php:164
    8PlgSystemBetterPreview->handleOnAfterRender()JROOT/libraries/regularlabs/src/Plugin.php:193
    7RegularLabs\Library\Plugin->onAfterRender()JROOT/libraries/joomla/event/event.php:70
    6JEvent->update()JROOT/libraries/joomla/event/dispatcher.php:160
    5JEventDispatcher->trigger()JROOT/libraries/src/Application/BaseApplication.php:108
    4Joomla\CMS\Application\BaseApplication->triggerEvent()JROOT/libraries/src/Application/CMSApplication.php:1050
    3Joomla\CMS\Application\CMSApplication->render()JROOT/libraries/src/Application/SiteApplication.php:778
    2Joomla\CMS\Application\SiteApplication->render()JROOT/libraries/src/Application/CMSApplication.php:202
    1Joomla\CMS\Application\CMSApplication->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:
  1. 3 × SELECT DISTINCT a.id, a.title, a.name, a.checked_out, a.checked_out_time, a.note, a.state, a.access, a.created_time, a.created_user_id, a.ordering, a.language, a.fieldparams, a.params, a.type, a.default_value, a.context, a.group_id, a.label, a.description, a.required,l.title AS language_title, l.image AS language_image,uc.name AS editor,ag.title AS access_level,ua.name AS author_name,g.title AS group_title, g.access as group_access, g.state AS group_state, g.note as group_note 
      FROM jos_fields AS a
      LEFT JOIN `jos_languages` AS l
      ON l.lang_code = a.language
      LEFT JOIN jos_users AS uc
      ON uc.id=a.checked_out
      LEFT JOIN jos_viewlevels AS ag
      ON ag.id = a.access
      LEFT JOIN jos_users AS ua
      ON ua.id = a.created_user_id
      LEFT JOIN jos_fields_groups AS g
      ON g.id = a.group_id
  2. 2 × SELECT DISTINCT a.id, a.title, a.name, a.checked_out, a.checked_out_time, a.note, a.state, a.access, a.created_time, a.created_user_id, a.ordering, a.language, a.fieldparams, a.params, a.type, a.default_value, a.context, a.group_id, a.label, a.description, a.required,l.title AS language_title, l.image AS language_image,uc.name AS editor,ag.title AS access_level,ua.name AS author_name,g.title AS group_title, g.access as group_access, g.state AS group_state, g.note as group_note 
      FROM jos_fields AS a
      LEFT JOIN `jos_languages` AS l
      ON l.lang_code = a.language
      LEFT JOIN jos_users AS uc
      ON uc.id=a.checked_out
      LEFT JOIN jos_viewlevels AS ag
      ON ag.id = a.access
      LEFT JOIN jos_users AS ua
      ON ua.id = a.created_user_id
      LEFT JOIN jos_fields_groups AS g
      ON g.id = a.group_id
      LEFT JOIN `jos_fields_categories` AS fc
      ON fc.field_id = a.id
  3. 2 × SELECT `id`,`name`,`rules`,`parent_id` 
      FROM `jos_assets`
  4. 2 × SELECT `m`.`tag_id`,`t`.* 
      FROM `jos_contentitem_tag_map` AS m
      INNER JOIN `jos_tags` AS t
      ON `m`.`tag_id` = `t`.`id`
  5. 1 × SELECT `data` 
      FROM `jos_session`
  6. 1 × SELECT m.id, m.title, m.module, m.position, m.content, m.showtitle, m.params, mm.menuid 
      FROM jos_modules AS m
      LEFT JOIN jos_modules_menu AS mm
      ON mm.moduleid = m.id
      LEFT JOIN jos_extensions AS e
      ON e.element = m.module
      AND e.client_id = m.client_id
  7. 1 × SELECT `c2`.`language`,CONCAT_WS(':', `c2`.`id`, `c2`.`alias`) AS `id` 
      FROM `jos_categories` AS `c`
      INNER JOIN `jos_associations` AS `a`
      ON a.id = c.`id`
      AND a.context='com_categories.item'
      INNER JOIN `jos_associations` AS `a2`
      ON `a`.`key` = `a2`.`key`
      INNER JOIN `jos_categories` AS `c2`
      ON a2.id = c2.`id`
      AND c2.extension = 'com_content'
  8. 1 × SELECT `c2`.`language`,`c2`.`id` 
      FROM `jos_menu` AS `c`
      INNER JOIN `jos_associations` AS `a`
      ON a.id = c.`id`
      AND a.context='com_menus.item'
      INNER JOIN `jos_associations` AS `a2`
      ON `a`.`key` = `a2`.`key`
      INNER JOIN `jos_menu` AS `c2`
      ON a2.id = c2.`id`
  9. 1 × SELECT language,id 
      FROM `jos_menu`
  10. 1 × SELECT COUNT(*) 
      FROM jos_content AS a
      LEFT JOIN jos_categories AS c
      ON c.id = a.catid
      LEFT JOIN jos_users AS ua
      ON ua.id = a.created_by
      LEFT JOIN jos_users AS uam
      ON uam.id = a.modified_by
      LEFT JOIN jos_categories as parent
      ON parent.id = c.parent_id
      LEFT JOIN jos_content_rating AS v
      ON a.id = v.content_id
  11. 1 × SELECT c.id, c.asset_id, c.access, c.alias, c.checked_out, c.checked_out_time,     c.created_time, c.created_user_id, c.description, c.extension, c.hits, c.language, c.level,     c.lft, c.metadata, c.metadesc, c.metakey, c.modified_time, c.note, c.params, c.parent_id,     c.path, c.published, c.rgt, c.title, c.modified_user_id, c.version, 
      CASE WHEN CHAR_LENGTH(c.alias) != 0 THEN CONCAT_WS(':', c.id, c.alias) ELSE c.id END as slug
      FROM `jos_categories` AS `s`
      INNER JOIN `jos_categories` AS `c`
      ON (s.lft < c.lft
      AND c.lft < s.rgt
      AND c.language IN ('en-GB','*')) OR (c.lft <= s.lft
      AND s.rgt <= c.rgt)
  12. 1 × SELECT `session_id` 
      FROM `jos_session`
  13. 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 c.published = 2
      AND a.state > 0 THEN 2 WHEN c.published != 1 THEN 0 ELSE a.state END as state,
      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, a.ordering,c.title AS category_title, c.path AS category_route, c.access AS category_access, c.alias AS category_alias,c.published, c.published AS parents_published, c.lft,
      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,COALESCE(NULLIF(ROUND(v.rating_sum / v.rating_count, 0), 0), 0) AS rating, COALESCE(NULLIF(v.rating_count, 0), 0) as rating_count
      FROM jos_content AS a
      LEFT JOIN jos_categories AS c
      ON c.id = a.catid
      LEFT JOIN jos_users AS ua
      ON ua.id = a.created_by
      LEFT JOIN jos_users AS uam
      ON uam.id = a.modified_by
      LEFT JOIN jos_categories as parent
      ON parent.id = c.parent_id
      LEFT JOIN jos_content_rating AS v
      ON a.id = v.content_id
  14. 1 × SELECT c.id, c.asset_id, c.access, c.alias, c.checked_out, c.checked_out_time,     c.created_time, c.created_user_id, c.description, c.extension, c.hits, c.language, c.level,     c.lft, c.metadata, c.metadesc, c.metakey, c.modified_time, c.note, c.params, c.parent_id,     c.path, c.published, c.rgt, c.title, c.modified_user_id, c.version, 
      CASE WHEN CHAR_LENGTH(c.alias) != 0 THEN CONCAT_WS(':', c.id, c.alias) ELSE c.id END as slug,( SELECT COUNT(i.`id`)
      FROM `jos_content` AS `i`
  15. 1 × SELECT id, home, template, s.params 
      FROM jos_template_styles as s
      LEFT JOIN jos_extensions as e
      ON e.element=s.template
      AND e.type='template'
      AND e.client_id=s.client_id
  16. 1 × SELECT b.id 
      FROM jos_usergroups AS a
      LEFT JOIN jos_usergroups AS b
      ON b.lft <= a.lft
      AND b.rgt >= a.rgt
  17. 1 × SELECT id, rules 
      FROM `jos_viewlevels
  18. 1 × SELECT name, element AS `option` 
      FROM jos_extensions
OTHER Tables:
  1. 1 × INSERT INTO `jos_session` (`session_id`,`guest`,`time`,`userid`,`username`,`client_id`) 
      VALUES (X'3630623562353839653536303964353430343835396230383931346465613736', 1, 1611114989, 0, '', 0
  2. 1 × UPDATE `jos_extensions` 
      SET `params` = '{\"mediaversion\":\"f517f842abc8464a426b079974a81c85\"}'