text: CREATE SCHEMA IF NOT EXISTS "travelperk_integration";
  
  CREATE TABLE IF NOT EXISTS "access_tokens" (
      "account_id" text PRIMARY KEY NOT NULL,
      "token_set" jsonb NOT NULL,
      "created_at" timestamp DEFAULT NOW() NOT NULL,
      "updated_at" timestamp DEFAULT NOW() NOT NULL
  );
  
  CREATE TABLE IF NOT EXISTS "payhawk_api_keys" (
      "account_id" text PRIMARY KEY NOT NULL,
      "key" text,
      "created_at" timestamp DEFAULT NOW() NOT NULL,
      "updated_at" timestamp DEFAULT NOW() NOT NULL
  );
  
  CREATE TABLE IF NOT EXISTS "invoices_sync_history" (
      "account_id" text PRIMARY KEY NOT NULL,
      "last_sync_at" timestamp NOT NULL
  );
  