title: Equivalent of only_full_group_by for Postgres
body: <p>is there any equivalent MySQL's only_full_group_by for Postgres?</p>
  <p>The reason is we had been hitting with this error <code>column of must appear in the GROUP BY clause or be used in an aggregate function</code>. But this error did not occur with connecting with another database from the same Postgres server, it is only happening in one of the newly created database which has exact database structure and data with the one working fine.</p>
  <p>So, wondering if there are any options that we can disable so that we are not hitting with this error.</p>
  <p>Thanks.</p>