PostgreSQL (and most of other databases) essentials for backend developers

Sat, 12 Sep 2026 14:07:00 -0300

This is not an extensive list. I reduced some details and specificities to the bare minimum that I think it’s required for a backend developer to know when seriously using PostgreSQL.

All the topics here are well documented in the official PostgreSQL docs

Index types, when and why Link to heading

I’m not getting into the detail of each index. What I believe that you should know is: 1) how this index is stored (how much space each one of them uses); 2) which datatypes they are supposed to perform better; 3) which operations they support

Query on Leonardo Zamariola

PostgreSQL (and most of other databases) essentials for backend developers

Index types, when and why Link to heading