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Postgres’ wide array of features become even more fun when you bring them together. In this case, the popular JSON datatype gets coupled with pub-sub from directly in your database, or to Postgres listen-notify.
Adding to the list of features which will be available in Postgres 9.5 comes pg_rewind. As the name suggests this will let you re-wind some of your WAL, which can be especially handy as highlighted in this post for anyone running an HA setup.
Want all your relational data backed by a safe data store in Postgres, while gaining some of the flexible non-blocking nature you often see with NoSQL data stores? Here’s an answer for when using Postgres with the Play framework.