title: MikroOrm: Get list of schemas
body: <p>How can i retrieve a list of all the schemas of a mikro-orm.config.js DB Connection?</p>
  <p>I tried</p>
  <pre><code>const publicOrm = await MikroORM.init(MikroOrmOptions);
  const result = await publicOrm
    .getSchemaGenerator()
    .execute('select schema_name from information_schema.schemata;');
  </code></pre>
  <p>But 'result' always undefined</p>