How to Enable dblink and postgres_fdw Permissions in ApsaraDB RDS for PostgreSQL 11

In this article, the author explains dblink and postgres_fdw permissions in ApsaraDb RDS for PostgreSQL 11.

PostgreSQL Similarity Search Distributed Architecture: DBLink Asynchronous Call and Multi-machine Parallelism

This post outlines the design and practices for PostgreSQL similarity search distributed architecture and describes how you can perform a parallel query by using DBLink asynchronous calls.