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database: Nested Tables

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Author Message

Kai Duebbert

Saturday 28 June 2003 7:51:43 am

Hi,

I've read a very interesting article in the German (and ridiculously overpriced) magazine "PHP Magazin" comparing different database models for mapping hierarchical structures in relational databases.

As far as I know, eZ publish uses the "Parent Model". The article demonstrated that the "Path Model" and the "Nested Tables Model" showed a dramatically increased performance.

Are there any plans on using a different model in the future? Were there any thoughts about this when designing eZ publish?

Best regards,

Kai

eZ debug

Timing: Jan 30 2025 21:42:57
Script start
Timing: Jan 30 2025 21:42:57
Module start 'content'
Timing: Jan 30 2025 21:42:57
Module end 'content'
Timing: Jan 30 2025 21:42:57
Script end

Main resources:

Total runtime0.3516 sec
Peak memory usage8,192.0000 KB
Database Queries141

Timing points:

CheckpointStart (sec)Duration (sec)Memory at start (KB)Memory used (KB)
Script start 0.00000.0082 587.9063370.3047
Module start 'content' 0.00820.0119 958.2109997.2813
Module end 'content' 0.02020.3314 1,955.49223,885.9141
Script end 0.3516  5,841.4063 

Time accumulators:

 Accumulator Duration (sec) Duration (%) Count Average (sec)
Ini load
Load cache0.00461.3055200.0002
Check MTime0.00130.3767200.0001
Mysql Total
Database connection0.00070.207610.0007
Mysqli_queries0.252271.71601410.0018
Looping result0.00170.49471390.0000
Template Total0.331094.110.3310
Template load0.00090.267110.0009
Template processing0.330093.854410.3300
Override
Cache load0.00070.186210.0007
Sytem overhead
Fetch class attribute can translate value0.00170.482010.0017
XML
Image XML parsing0.00030.071110.0003
General
dbfile0.00722.0338200.0004
String conversion0.00000.002030.0000
Note: percentages do not add up to 100% because some accumulators overlap

CSS/JS files loaded with "ezjscPacker" during request:

CacheTypePacklevelSourceFiles
CSS0extension/community/design/community/stylesheets/ext/jquery.autocomplete.css
extension/community_design/design/suncana/stylesheets/scrollbars.css
extension/community_design/design/suncana/stylesheets/tabs.css
extension/community_design/design/suncana/stylesheets/roadmap.css
extension/community_design/design/suncana/stylesheets/content.css
extension/community_design/design/suncana/stylesheets/star-rating.css
extension/community_design/design/suncana/stylesheets/syntax_and_custom_tags.css
extension/community_design/design/suncana/stylesheets/buttons.css
extension/community_design/design/suncana/stylesheets/tweetbox.css
extension/community_design/design/suncana/stylesheets/jquery.fancybox-1.3.4.css
extension/bcsmoothgallery/design/standard/stylesheets/magnific-popup.css
extension/sevenx/design/simple/stylesheets/star_rating.css
extension/sevenx/design/simple/stylesheets/libs/fontawesome/css/all.min.css
extension/sevenx/design/simple/stylesheets/main.v02.css
extension/sevenx/design/simple/stylesheets/main.v02.res.css
JS0extension/ezjscore/design/standard/lib/yui/3.17.2/build/yui/yui-min.js
extension/ezjscore/design/standard/javascript/jquery-3.7.0.min.js
extension/community_design/design/suncana/javascript/jquery.ui.core.min.js
extension/community_design/design/suncana/javascript/jquery.ui.widget.min.js
extension/community_design/design/suncana/javascript/jquery.easing.1.3.js
extension/community_design/design/suncana/javascript/jquery.ui.tabs.js
extension/community_design/design/suncana/javascript/jquery.hoverIntent.min.js
extension/community_design/design/suncana/javascript/jquery.popmenu.js
extension/community_design/design/suncana/javascript/jScrollPane.js
extension/community_design/design/suncana/javascript/jquery.mousewheel.js
extension/community_design/design/suncana/javascript/jquery.cycle.all.js
extension/sevenx/design/simple/javascript/jquery.scrollTo.js
extension/community_design/design/suncana/javascript/jquery.cookie.js
extension/community_design/design/suncana/javascript/ezstarrating_jquery.js
extension/community_design/design/suncana/javascript/jquery.initboxes.js
extension/community_design/design/suncana/javascript/app.js
extension/community_design/design/suncana/javascript/twitterwidget.js
extension/community_design/design/suncana/javascript/community.js
extension/community_design/design/suncana/javascript/roadmap.js
extension/community_design/design/suncana/javascript/ez.js
extension/community_design/design/suncana/javascript/ezshareevents.js
extension/sevenx/design/simple/javascript/main.js

Templates used to render the page:

UsageRequested templateTemplateTemplate loadedEditOverride
1pagelayout.tpl<No override>extension/sevenx/design/simple/templates/pagelayout.tplEdit templateOverride template
 Number of times templates used: 1
 Number of unique templates used: 1

Time used to render debug report: 0.0001 secs