text: 
  -- +goose Up
  -- SQL in section 'Up' is executed when this migration is applied
  ALTER TABLE transactions DROP COLUMN wallet_id;
  ALTER TABLE transactions ADD COLUMN user_id int references users (id);
  ALTER TABLE users ADD COLUMN token varchar(255);
  ALTER TABLE users ADD COLUMN callback_url text;
  ALTER TABLE users ADD COLUMN current_balance numeric;
  ALTER TABLE users ADD COLUMN mobile_number varchar(255);
  ALTER TABLE users ADD COLUMN network_operator varchar(255);
  DROP TABLE wallets;
  
  -- +goose Down
  -- SQL section 'Down' is executed when this migration is rolled back
  
  