title: PostgreSQL equivalent of MySQL memory tables?
body: <p>Does PostgreSQL have an equivalent of MySQL <a href="https://dev.mysql.com/doc/refman/5.5/en/memory-storage-engine.html" rel="noreferrer">memory tables</a>? </p>
  
  <p>These MySQL memory tables can persist across sessions (i.e., different from temporary tables which drop at the end of the session). I haven't been able to find anything with PostgreSQL that can do the same.</p>