fix(tidb-reserverd-word): groups, rank

app/jobs/scheduled/fix_user_usernames_and_groups_names_clash.rb

@@ -5,7 +5,7 @@ class FixUserUsernamesAndGroupNamesClash < Jobs::Scheduled
     every 1.week
 
     def execute(args)
-      User.joins("LEFT JOIN groups ON lower(groups.name) = users.username_lower")
+      User.joins("LEFT JOIN `groups` ON lower(groups.name) = users.username_lower")
         .where("groups.id IS NOT NULL")
         .find_each do |user|
 

app/models/post_revision.rb

@@ -15,7 +15,7 @@ def self.ensure_consistency!
     DB.exec <<-SQL
       UPDATE post_revisions
         JOIN (
-              SELECT id, @row_number:=CASE WHEN @post_id=post_id THEN @row_number+1 ELSE 1 END AS rank,
+              SELECT id, @row_number:=CASE WHEN @post_id=post_id THEN @row_number+1 ELSE 1 END AS `rank`,
                      @post_id:=post_id 
               FROM post_revisions, (SELECT @row_number:=0,@post_id:='') AS t 
               ORDER BY  post_id, number, created_at, updated_at

lib/score_calculator.rb

@@ -62,7 +62,7 @@ def update_posts_rank(opts)
               JOIN (
                 SELECT id, case when c = 1 then 1 else (`rank` -1)/(c - 1) end as percent_rank
                   FROM (select posts.id,posts.topic_id, 
-                               posts.score, count(lesser.id) + 1 as rank 
+                               posts.score, count(lesser.id) + 1 as `rank`
                           from posts 
                                left join posts as lesser on lesser.score < posts.score and lesser.topic_id = posts.topic_id 
                       group by posts.id 

lib/tasks/import.rake

@@ -414,7 +414,7 @@ def update_groups
           FROM group_users
       GROUP BY group_id
     )
-    UPDATE groups
+    UPDATE `groups`
        SET user_count = X.count
       FROM X
      WHERE id = X.group_id