#442

backend/app/controllers/posts_controller.rb

@@ -37,15 +37,7 @@ class PostsController < ApplicationController
 
     offset = (page - 1) * limit
 
-    pt_max_sql =
-        HistoryAccess.visible(PostVersion.all)
-        .where('post_versions.post_id = posts.id')
-        .select('MAX(post_versions.created_at)')
-        .to_sql
-
-    updated_at_all_sql =
-        'GREATEST(posts.updated_at,' +
-        "COALESCE((#{ pt_max_sql }), posts.updated_at))"
+    updated_at_all_sql = 'posts.updated_at'
 
     q =
         filtered_posts(locale)
@@ -93,8 +85,7 @@ class PostsController < ApplicationController
 
     render json: { posts: posts.map { |post|
       PostRepr.base(post, language_code: locale.language_code)
-              .merge(updated_at: [post.updated_at, latest_version_times[post.id]].compact.max)
-              .tap do |json|
+              .merge(updated_at: post.updated_at).tap do |json|
         json['thumbnail'] =
             if post.thumbnail.attached?
               rails_storage_proxy_url(post.thumbnail, only_path: false)