Number of characters in English KB

gistfile1.sql

SELECT  SUM(LENGTH(`wiki_revision`.`content`))
FROM `wiki_document`
JOIN `wiki_document_products` ON `wiki_document`.`id` = `wiki_document_products`.`document_id`
JOIN `wiki_revision` ON `wiki_document`.`current_revision_id` = `wiki_revision`.`id`
WHERE `wiki_document`.`locale`="en-US"
#AND `wiki_document_products`.`product_id` = 1
AND `wiki_document`.`is_archived` = 0
AND `wiki_document`.`current_revision_id` IS NOT NULL
AND `wiki_document`.`html` NOT LIKE '%REDIRECT%'
#AND `wiki_document`.`html` LIKE '%data-for%'