add competition_id index for registrations (#9678)

db/migrate/20240716145605_add_more_indexes_to_registrations.rb

@@ -0,0 +1,8 @@
+# frozen_string_literal: true
+
+class AddMoreIndexesToRegistrations < ActiveRecord::Migration[7.1]
+  def change
+    add_index :registrations, :competition_id
+    add_index :registration_payments, :registration_id
+  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_06_05_145605) do
+ActiveRecord::Schema[7.1].define(version: 2024_07_16_145605) do
   create_table "Competitions", id: { type: :string, limit: 32, default: "" }, charset: "utf8mb4", collation: "utf8mb4_unicode_ci", force: :cascade do |t|
     t.string "name", limit: 50, default: "", null: false
     t.string "cityName", limit: 50, default: "", null: false
@@ -977,6 +977,7 @@
     t.integer "user_id"
     t.index ["receipt_type", "receipt_id"], name: "index_registration_payments_on_receipt"
     t.index ["refunded_registration_payment_id"], name: "idx_reg_payments_on_refunded_registration_payment_id"
+    t.index ["registration_id"], name: "index_registration_payments_on_registration_id"
     t.index ["stripe_charge_id"], name: "index_registration_payments_on_stripe_charge_id"
   end
 
@@ -996,6 +997,7 @@
     t.boolean "is_competing", default: true
     t.text "administrative_notes"
     t.index ["competition_id", "user_id"], name: "index_registrations_on_competition_id_and_user_id", unique: true
+    t.index ["competition_id"], name: "index_registrations_on_competition_id"
     t.index ["user_id"], name: "index_registrations_on_user_id"
   end