There are several ways to build a sharded database on top of distributed postgres instances. One of the most interesting and general approach is a built-in support for sharding. Historically postgres has fdw and partitioning features that can be used together to build a sharded database. There were concerns in the past about adoption them for a complete solution. We will review the current state of postgres fdw along with patches, that fix some significant bottlenecks in the planner and demon...
