Extension:CategoryIntersection

What can this extension do?
This template creates a special page - Special:CategoryIntersection.

You put in a list of categories to this page (separated by newlines), and the extension returns the articles that are in all the categories listed.

It stores hashes of what categories a page is in in a separate table in db to (I assume) make things efficient.

Somewhat akin to the DynamicPageList extensions (but probably much more efficient).

Installation
To install this extension, do the following:


 * 1) add the following to :
 * 2) Run the  maintenance script
 * 3) Run the  maintenance script.
 * 1) Run the  maintenance script.

Deployment
Use this wiki mark-up code on the wiki page to view the results.

Examples
Some example wiki pages that use this extension include: LyricWiki ( Feel free to insert your wiki page. )