function getQueryInfo() > 
	$activeUserSeconds = $this->getConfig()->get( 'ActiveUserDays' ) * 86400;
	$timestamp = $dbr->timestamp( wfTimestamp( TS_UNIX ) - $activeUserSeconds );
	$tables = [ 'querycachetwo', 'user', 'recentchanges' ];
	$conds = [
		'qcc_type' => 'activeusers',
		'qcc_namespace' => NS_USER,
		'user_name = qcc_title',
		'rc_user_text = qcc_title',
		'rc_type != ' . $dbr->addQuotes( RC_EXTERNAL ), // Don't count wikidata.
		'rc_type != ' . $dbr->addQuotes( RC_CATEGORIZE ), // Don't count categorization changes.
		'rc_log_type IS NULL OR rc_log_type != ' . $dbr->addQuotes( 'newusers' ),
		'rc_timestamp >= ' . $dbr->addQuotes( $timestamp ),
	];

$activeUsers = $dbr->selectField(
	'recentchanges',
	'COUNT( DISTINCT rc_user_text )',
	[
		'rc_user != 0',
		'rc_bot' => 0,
		'rc_log_type != ' . $dbr->addQuotes( 'newusers' ) . ' OR rc_log_type IS NULL',
		'rc_timestamp >= ' . $dbr->addQuotes( $dbr->timestamp( wfTimestamp( TS_UNIX )
			- $wgActiveUserDays * 24 * 3600 ) ),