Increase value of max_statement_time in DB

[cicalese]

https://wikiapiary.com/w/api.php?action=query&format=json&meta=siteinfo&siprop=statistics reports that WikiApiary has 937,634 pages and 2,530,184 articles. It does not make sense that articles > pages. So, I tried to run maintenance/initSiteStats.php, in the hopes that it is the correct script to run in this condition and that it might help. However, I get:

php maintenance/initSiteStats.php 
Refresh Site Statistics

Counting total edits...10121971
Counting number of articles...Wikimedia\Rdbms\DBQueryTimeoutError from line 1614 of /var/www/wikiapiary/www/mediawiki/public_html/w/includes/libs/rdbms/database/Database.php: A database query timeout has occurred. 
Query: SELECT  COUNT(DISTINCT page_id)  FROM `page`,`pagelinks`    WHERE page_namespace IN (0,800,802,804,808,810,812)  AND page_is_redirect = 0 AND (pl_from=page_id)  LIMIT 1  
Function: SiteStatsInit::articles
Error: 1969 Query execution was interrupted (max_statement_time exceeded)

The same error is seen in the logs frequently for Semantic MediaWiki queries.