add email event date index

db/migrate/20250530080846_add_email_events_date_index.rb

@@ -0,0 +1,8 @@
+# frozen_string_literal: true
+
+class AddEmailEventsDateIndex < ActiveRecord::Migration[8.0]
+  def change
+    remove_index :email_events, :account_id
+    add_index :email_events, %i[account_id event_datetime]
+  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_05_18_070555) do
+ActiveRecord::Schema[8.0].define(version: 2025_05_30_080846) do
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
 
@@ -174,7 +174,7 @@ ActiveRecord::Schema[8.0].define(version: 2025_05_18_070555) do
     t.text "data", null: false
     t.datetime "event_datetime", null: false
     t.datetime "created_at", null: false
-    t.index ["account_id"], name: "index_email_events_on_account_id"
+    t.index ["account_id", "event_datetime"], name: "index_email_events_on_account_id_and_event_datetime"
     t.index ["email"], name: "index_email_events_on_email"
     t.index ["emailable_type", "emailable_id"], name: "index_email_events_on_emailable"
     t.index ["message_id"], name: "index_email_events_on_message_id"