Optimized List Queries by Xon

Optimized List Queries by Xon 2.3.0

No permission to download
Compatible XF 2.x versions
2.0, 2.1
Additional requirements
php 5.6+
License
MIT Licence
Visible branding
No
This add-on is aimed at large forum with tens of thousands to hundreds of thousands or more threads in a single forum. Smaller forum do not gain much benefit from this add-on.

Member List/Forum/conversation lists:


MySQL/MariaDB implements 'early row lookup', when combined with LIMIT & OFFSET with a large offset, results in the large select statement pulling in more data than is required. Maybe one day MySQL/MariaDB will fix this. Maybe.

This causes an issue as this how conversations and threads implement paging.

This addon provides some optimized query for getting threads in a forum with large number of threads, or for conversations with a very high page count.

Ideally conversations would implement the position system like posts do, which would be even faster than using sub-selects to force 'late row lookup'.

For more information see:
Configuration
Under "Performance":
191038



Contributing features or bug fixes
Please create a Github Pull request via the "More Information" link.

Contributions

If you appreciate this add-on, please consider a contribution via PayPal. Details will be provide via private conversation.

Please contact me if you wish for different licencing arrangements.
Related resources
Author
Xon
Downloads
107
Views
1,642
First release
Last update
Rating
5.00 star(s) 2 ratings

More resources from Xon

Latest updates

  1. 2.3.0

    Re-release v2.3.0 without debug code
  2. 2.3.0 - Feature update

    Require XF2.1+ Fix "Better xxx List Page Threshold" options actually accepting 0 as a valid...
  3. 2.2.4 - Compatibility fix

    Compatibility fix for; Multi Prefix add-on @Banxix's [Banxix] Bump Thread add-on

Latest reviews

A great add-on that solves forums issues not only with query performance. But besides this, the ugliness of the developers that causes the XenForo Media Gallery rules. Thanks to this add-on, mysql can completely solve the problem with slow queries, in addition, it is ruled by such a disgrace https://xenforo.com/community/threads/xf-finder-join-index-hints.173114/. If you have an average forum, then you should think about this addition already.
Big forums suffer a lot of performance issues. It's great to see a top notch addon author like Xon try to lessen the load and make things faster. Thanks!
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