Add `language` column to public timelines index (#33779)

db/post_migrate/20250129144440_add_new_public_index_to_statuses.rb

@@ -0,0 +1,9 @@
+# frozen_string_literal: true
+
+class AddNewPublicIndexToStatuses < ActiveRecord::Migration[8.0]
+  disable_ddl_transaction!
+
+  def change
+    add_index :statuses, [:id, :language, :account_id], name: :index_statuses_public_20250129, algorithm: :concurrently, order: { id: :desc }, where: 'deleted_at IS NULL AND visibility = 0 AND reblog_of_id IS NULL AND ((NOT reply) OR (in_reply_to_account_id = account_id))' # rubocop:disable Naming/VariableNumber
+  end
+end

db/post_migrate/20250129144813_remove_old_public_index_to_statuses.rb

@@ -0,0 +1,9 @@
+# frozen_string_literal: true
+
+class RemoveOldPublicIndexToStatuses < ActiveRecord::Migration[8.0]
+  disable_ddl_transaction!
+
+  def change
+    remove_index :statuses, [:id, :account_id], name: :index_statuses_public_20200119, algorithm: :concurrently, order: { id: :desc }, where: 'deleted_at IS NULL AND visibility = 0 AND reblog_of_id IS NULL AND ((NOT reply) OR (in_reply_to_account_id = account_id))' # rubocop:disable Naming/VariableNumber
+  end
+end

db/schema.rb

@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema[8.0].define(version: 2025_01_08_111200) do
+ActiveRecord::Schema[8.0].define(version: 2025_01_29_144813) do
   # These are extensions that must be enabled in order to support this database
   enable_extension "pg_catalog.plpgsql"
 
@@ -1056,7 +1056,7 @@ ActiveRecord::Schema[8.0].define(version: 2025_01_08_111200) do
     t.index ["account_id"], name: "index_statuses_on_account_id"
     t.index ["deleted_at"], name: "index_statuses_on_deleted_at", where: "(deleted_at IS NOT NULL)"
     t.index ["id", "account_id"], name: "index_statuses_local_20190824", order: { id: :desc }, where: "((local OR (uri IS NULL)) AND (deleted_at IS NULL) AND (visibility = 0) AND (reblog_of_id IS NULL) AND ((NOT reply) OR (in_reply_to_account_id = account_id)))"
-    t.index ["id", "account_id"], name: "index_statuses_public_20200119", order: { id: :desc }, where: "((deleted_at IS NULL) AND (visibility = 0) AND (reblog_of_id IS NULL) AND ((NOT reply) OR (in_reply_to_account_id = account_id)))"
+    t.index ["id", "language", "account_id"], name: "index_statuses_public_20250129", order: { id: :desc }, where: "((deleted_at IS NULL) AND (visibility = 0) AND (reblog_of_id IS NULL) AND ((NOT reply) OR (in_reply_to_account_id = account_id)))"
     t.index ["in_reply_to_account_id"], name: "index_statuses_on_in_reply_to_account_id", where: "(in_reply_to_account_id IS NOT NULL)"
     t.index ["in_reply_to_id"], name: "index_statuses_on_in_reply_to_id", where: "(in_reply_to_id IS NOT NULL)"
     t.index ["reblog_of_id", "account_id"], name: "index_statuses_on_reblog_of_id_and_account_id"