From 3f58bdd33838f471f488ed0f38c9a0d69b2d50ac Mon Sep 17 00:00:00 2001 From: Akira Matsuda Date: Sat, 20 Dec 2025 16:05:41 +0900 Subject: [PATCH 1/2] rails generate migration AddIndexToMessagesYyymm --- db/migrate/20251220070408_add_index_to_messages_yyymm.rb | 5 +++++ 1 file changed, 5 insertions(+) create mode 100644 db/migrate/20251220070408_add_index_to_messages_yyymm.rb diff --git a/db/migrate/20251220070408_add_index_to_messages_yyymm.rb b/db/migrate/20251220070408_add_index_to_messages_yyymm.rb new file mode 100644 index 0000000..e6b5f9f --- /dev/null +++ b/db/migrate/20251220070408_add_index_to_messages_yyymm.rb @@ -0,0 +1,5 @@ +class AddIndexToMessagesYyymm < ActiveRecord::Migration[8.1] + def change + add_index :messages, :yyyymm + end +end From 374a774aebf0e6c416ccffed9459354146bea246 Mon Sep 17 00:00:00 2001 From: Akira Matsuda Date: Sat, 20 Dec 2025 16:05:51 +0900 Subject: [PATCH 2/2] rails db:migrate --- db/schema.rb | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/db/schema.rb b/db/schema.rb index 9acb8f4..2c2a6e2 100644 --- a/db/schema.rb +++ b/db/schema.rb @@ -10,7 +10,7 @@ # # It's strongly recommended that you check this file into your version control system. -ActiveRecord::Schema[8.1].define(version: 2025_12_20_051221) do +ActiveRecord::Schema[8.1].define(version: 2025_12_20_070408) do # These are extensions that must be enabled in order to support this database enable_extension "pg_catalog.plpgsql" enable_extension "pg_trgm" @@ -67,6 +67,7 @@ t.index ["body"], name: "index_messages_on_body", opclass: :gin_trgm_ops, using: :gin t.index ["list_id", "list_seq"], name: "index_messages_on_list_id_and_list_seq", unique: true t.index ["message_id_header"], name: "index_messages_on_message_id_header" + t.index ["yyyymm"], name: "index_messages_on_yyyymm" end add_foreign_key "active_storage_attachments", "active_storage_blobs", column: "blob_id"