Function tryNext

cf/src/connection.js:792–800

(x, xs)

  }

  function tryNext(x, xs) {
    return (
      (x === 'read-write' && xs.default_transaction_read_only === 'on') ||
      (x === 'read-only' && xs.default_transaction_read_only === 'off') ||
      (x === 'primary' && xs.in_hot_standby === 'on') ||
      (x === 'standby' && xs.in_hot_standby === 'off') ||
      (x === 'prefer-standby' && xs.in_hot_standby === 'off' && options.host[retries])
    )
  }

  function fetchState() {
    const query = new Query([`