Add: #581 NGワード検出履歴を定期的に削除する処理 (#619)

* Add: #581 NGワード検出履歴を定期的に削除する処理

* マイグレーションコードを修正

db/post_migrate/20240227222450_index_to_sort_for_ng_word_created_date.rb

@@ -0,0 +1,9 @@
+# frozen_string_literal: true
+
+class IndexToSortForNgWordCreatedDate < ActiveRecord::Migration[7.1]
+  disable_ddl_transaction!
+
+  def change
+    add_index :ngword_histories, :created_at, algorithm: :concurrently
+  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[7.1].define(version: 2024_02_27_033337) do
+ActiveRecord::Schema[7.1].define(version: 2024_02_27_222450) do
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
 
@@ -936,6 +936,7 @@ ActiveRecord::Schema[7.1].define(version: 2024_02_27_033337) do
     t.datetime "created_at", null: false
     t.datetime "updated_at", null: false
     t.integer "count", default: 0, null: false
+    t.index ["created_at"], name: "index_ngword_histories_on_created_at"
     t.index ["uri", "keyword", "created_at"], name: "index_ngword_histories_on_uri_and_keyword_and_created_at"
     t.index ["uri", "reason", "created_at"], name: "index_ngword_histories_on_uri_and_reason_and_created_at"
   end