Foreign Data Wrapper

Last Phriday we explored just where Postgres could end up in the future. One possible question which may have occurred to a reader was probably something along the lines of “That doesn’t even really sound like Postgres anymore. Why not just write another database?” Let’s just be outright about it: Postgres is the best RDBMS engine currently available. It’s certainly bold to claim that any database engine is “the best”, and as the saying goes, “Extraordinary claims require extraordinary evidence.

Last week we explored using Postgres as a central communication nexus between several data sources. At the time, I made a fairly hand-wavy allusion to REST interfaces. Since I hadn’t really explored further, I had assumed PLV8 could use core node.js or other similar libraries to invoke HTTP APIs. Of course as a trusted language, PLV8 isn’t allowed to do that. It’s more of a language for easily manipulating JSON and JSONB objects within Postgres.