title: Is there an open-source SQL database that has the concept of Oracle's "rowid" pseudo-column?
body: <p>I am aware that MySQL and PostgreSQL[1] do <em>not</em> have that concept, so I am interested in finding out of there is an open-source SQL database that does have the concept.</p>
  
  <p>[1] It was later pointed out that PostgreSQL does have the rowid pseudo-column.</p>