Invalidating the cache
The sanitized page title, without the namespace, with a maximum of 255 characters (binary).It is stored as text, with spaces replaced by underscores.Even before that, many sites including Wikimedia projects disabled it to increase performance; see the $wg Disable Counters global for details. This field stores whether the page is a new, meaning it either has only one revision or has not been edited since being restored, even if there is more than one revision. Rollback links are not displayed if the page is new, since there is nothing to roll back to.Random decimal value, between 0 and 1, used for Special: Random (see Manual: Random page for more details). This timestamp is updated whenever the page changes in a way requiring it to be re-rendered, invalidating caches.Comma-separated set of permission keys indicating who can move or edit the page.Edit and move sections are separated by a colon (e.g., "edit=autoconfirmed,sysop:move=sysop").
However, this field is still used in current versions of Media Wiki for rows generated by older versions of Media Wiki! This feature was completely removed in Media Wiki 1.25, following a request for comment.
Note: If you want to completely delete a page manually from the database, be sure to delete the entry for the page in the page table, and for all the page's revisions in the revision table, and all of the text rows corresponding only to the page in the text table.
This can be done by deleting the page row, then running maintenance/delete Orphaned Page IDs do not change when pages are moved, but they do change when pages are deleted and then restored.
Aside from editing, this includes permission changes, creation or deletion of linked pages, and alteration of contained templates.
Set to This timestamp is updated whenever a page is re-parsed and it has all the link tracking tables updated for it.