I think the parallel stuff is in 9.6, not 9.5.  <a href="http:&#x2F;&#x2F;rhaas.blogspot.com&#x2F;2015&#x2F;11&#x2F;parallel-sequential-scan-is-committed.html" rel="nofollow">http:&#x2F;&#x2F;rhaas.blogspot.com&#x2F;2015&#x2F;11&#x2F;parallel-sequential-scan-i...</a>