Untitled query #77504

SQL

#Preliminary approach: return user edit counts, a field already tracked by wikis. 
#caveats: not accurate, for details refer to Manual:user table, user_editcount
#time complexity: slow for large wikis/more users
#SELECT DISTINCT user.user_id, user.user_name, user.user_editcount FROM user
#INNER JOIN user_groups ON user.user_id = user_groups.ug_user -- join with user_group table using id to find if user is a bot
#WHERE NOT(user_groups.ug_group = 'bot') -- exclude bots from selection
#ORDER BY user_editcount DESC
#LIMIT 10

#Inner join / Extracting all revisions made by all users that have made a revision in this wiki
SELECT DISTINCT actor.actor_name, COUNT(revision.rev_actor) AS Edits
FROM actor
INNER JOIN revision ON actor.actor_id = revision.rev_actor
INNER JOIN user_groups ON user.user_id = user_groups.ug_user -- join with user_group table using id to find if user is a bot
WHERE NOT(user_groups.ug_group = 'bot') -- exclude bots from selection
GROUP BY actor.actor_name
ORDER BY Edits DESC
LIMIT 10

#Interestingly, the two approaches above result in slightly different rankings
#Some user edit counts are undercounted and some are overcounted in the first approach
#Since it doesn't involve a join, first approach is faster
SQL

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