Use cached column list for members union query

When doing a UNION query against a table that has a newly
added column, if the Rails code has not yet been restarted,
there can be a mismatch of columns, resulting in the UNION
query failing. This can happen during a rolling deploy across
a fleet of servers.

This fixes one such instance.

Changelog: fixed

app/models/member.rb

@@ -65,10 +65,10 @@ class Member < ApplicationRecord
 
   scope :in_hierarchy, ->(source) do
     groups = source.root_ancestor.self_and_descendants
-    group_members = Member.default_scoped.where(source: groups)
+    group_members = Member.default_scoped.where(source: groups).select(*Member.cached_column_list)
 
     projects = source.root_ancestor.all_projects
-    project_members = Member.default_scoped.where(source: projects)
+    project_members = Member.default_scoped.where(source: projects).select(*Member.cached_column_list)
 
     Member.default_scoped.from_union([
       group_members,

app/models/user.rb

@@ -2104,8 +2104,8 @@ class User < ApplicationRecord
 
   def authorized_groups_without_shared_membership
     Group.from_union([
-      groups.select(Namespace.arel_table[Arel.star]),
-      authorized_projects.joins(:namespace).select(Namespace.arel_table[Arel.star])
+      groups.select(*Namespace.cached_column_list),
+      authorized_projects.joins(:namespace).select(*Namespace.cached_column_list)
     ])
   end
 

app/services/projects/participants_service.rb

@@ -39,6 +39,7 @@ module Projects
       GroupMember
         .active_without_invites_and_requests
         .with_source_id(visible_groups.self_and_ancestors.pluck_primary_key)
+        .select(*GroupMember.cached_column_list)
     end
 
     def visible_groups
@@ -52,11 +53,12 @@ module Projects
     end
 
     def project_members_through_ancestral_groups
-      project.group.present? ? project.group.members_with_parents : Member.none
+      members = project.group.present? ? project.group.members_with_parents : Member.none
+      members.select(*GroupMember.cached_column_list)
     end
 
     def individual_project_members
-      project.project_members
+      project.project_members.select(*GroupMember.cached_column_list)
     end
 
     def project_owner?