If you want more details about pg_shard, have a look to this blog post. http://www.databasesoup.com/2014/12/whats-this-pgshard-thing.html http://www.databaseso

If you want more details about pg_shard, have a look to this blog post. http://www.databasesoup.com/2014/12/whats-this-pgshard-thing.html http://www.databasesoup.com/2014/12/whats-this-pgshard-thing... It explains a bit more what it does and doesn't