Manual:UpdateSpecialPages.php

Details
updateSpecialPages.php file is a maint-scripts>Special:MyLanguage/Manual:Maintenance scripts|maintenance script to update the information on the special pages that cache results in the querycache>Special:MyLanguage/Manual:Querycache table|querycache table.

This information includes Special:WantedTemplates, Special:Wantedpages and Special:Wantedfiles among many others.

The configuration setting var>Special:MyLanguage/Manual:$wgDisableQueryPageUpdate|$wgDisableQueryPageUpdate can be used to exclude certain special pages from being updated.