Go Back   vb.org Archive > vBulletin 3 Discussion > vB3 General Discussions
FAQ Community Calendar Today's Posts Search

 
 
Thread Tools Display Modes
Prev Previous Post   Next Post Next
  #2  
Old 11-17-2015, 02:04 PM
squidsk's Avatar
squidsk squidsk is offline
 
Join Date: Nov 2010
Posts: 969
Благодарил(а): 0 раз(а)
Поблагодарили: 0 раз(а) в 0 сообщениях
Default

I think you have a misunderstanding of how things work. Indexes improve the performance of the database by speeding up searches of tables when the conditions of searches use columns that have been indexed. For example a query of the post table for all posts by a particular user (i.e. userid column) is much faster if the userid column is indexed than if it isn't. The cost of indexing a column (or groups of columns) is that it takes up space. The one thing that is not a cost is performance.
Reply With Quote
 


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT. The time now is 12:14 PM.


Powered by vBulletin® Version 3.8.12 by vBS
Copyright ©2000 - 2025, vBulletin Solutions Inc.
X vBulletin 3.8.12 by vBS Debug Information
  • Page Generation 0.03328 seconds
  • Memory Usage 2,318KB
  • Queries Executed 12 (?)
More Information
Template Usage:
  • (1)SHOWTHREAD
  • (1)ad_footer_end
  • (1)ad_footer_start
  • (1)ad_header_end
  • (1)ad_header_logo
  • (1)ad_navbar_below
  • (1)ad_showthread_beforeqr
  • (4)bbcode_quote
  • (1)footer
  • (1)forumjump
  • (1)forumrules
  • (1)gobutton
  • (1)header
  • (1)headinclude
  • (1)navbar
  • (3)navbar_link
  • (120)option
  • (4)post_thanks_box
  • (4)post_thanks_button
  • (1)post_thanks_javascript
  • (1)post_thanks_navbar_search
  • (4)post_thanks_postbit_info
  • (4)postbit
  • (4)postbit_onlinestatus
  • (4)postbit_wrapper
  • (1)showthread_list
  • (1)spacer_close
  • (1)spacer_open
  • (1)tagbit_wrapper 

Phrase Groups Available:
  • global
  • inlinemod
  • postbit
  • posting
  • reputationlevel
  • showthread
Included Files:
  • ./showthread.php
  • ./global.php
  • ./includes/init.php
  • ./includes/class_core.php
  • ./includes/config.php
  • ./includes/functions.php
  • ./includes/class_hook.php
  • ./includes/modsystem_functions.php
  • ./includes/functions_bigthree.php
  • ./includes/class_postbit.php
  • ./includes/class_bbcode.php
  • ./includes/functions_reputation.php
  • ./includes/functions_threadedmode.php
  • ./includes/functions_post_thanks.php 

Hooks Called:
  • init_startup
  • init_startup_session_setup_start
  • init_startup_session_setup_complete
  • cache_permissions
  • fetch_postinfo_query
  • fetch_postinfo
  • fetch_threadinfo_query
  • fetch_threadinfo
  • fetch_foruminfo
  • style_fetch
  • cache_templates
  • global_start
  • parse_templates
  • global_setup_complete
  • showthread_start
  • showthread_getinfo
  • forumjump
  • showthread_post_start
  • showthread_query_postids_threaded
  • showthread_threaded_construct_link
  • showthread_query
  • bbcode_fetch_tags
  • bbcode_create
  • showthread_postbit_create
  • postbit_factory
  • postbit_display_start
  • post_thanks_function_post_thanks_off_start
  • post_thanks_function_post_thanks_off_end
  • post_thanks_function_fetch_thanks_start
  • post_thanks_function_fetch_thanks_end
  • post_thanks_function_thanked_already_start
  • post_thanks_function_thanked_already_end
  • fetch_musername
  • postbit_imicons
  • bbcode_parse_start
  • bbcode_parse_complete_precache
  • bbcode_parse_complete
  • postbit_display_complete
  • post_thanks_function_can_thank_this_post_start
  • tag_fetchbit_complete
  • forumrules
  • navbits
  • navbits_complete
  • showthread_complete