Introduction to Buffers in PostgreSQL

The work around RegreSQL led me to focus a lot on buffers . If you are a casual PostgreSQL user, you have probably heard about adjusting shared_buffers and followed the good old advice to set it to 1&#x2F;4 of available RAM. But after we went a little bit too enthusiastic about them on a recent Postgres FM episode I&#x27;ve been asked what that&#x27;s all about. Buffers are one of those topics…