title: Prisma DATABASE_URL error (Cloud Run + Cloud SQL)
body: <p>I use <a href="https://www.prisma.io/" rel="nofollow noreferrer">Prisma</a> with Cloud Run &amp; Cloud SQL. After providing <code>DATABASE_URL</code> to the <code>prisma.schema</code> it throws me an error in runtime.</p>
  <pre><code>Can't reach database server at `(/cloudsql/project-name:us-east1:database-id)`:`5432`
  Please make sure your database server is running at `(/cloudsql/project-name:us-east1:database-id)`:`5432`.&quot;
  </code></pre>
  <ul>
  <li>Database: Postgres</li>
  <li>Provided url <code>DATABASE_URL</code>: <code>postgresql://username:password@localhost/databasename?host=(/cloudsql/project-name:us-east1:database-id)</code></li>
  </ul>
  <p>What is wrong with connection? Do I failed to construct <code>DATABASE_URL</code> correctly?</p>