Optimize PostgreSQL read-only tables

Question

I have many read-only tables in a Postgres database. All of these tables can be queried using any combination of columns.

What can I do to optimize queries? Is it a

Answer 1

If you have filtering by more columns indexes may help but not too much. Also indexes may not help for small tables.

First search for "postgresql tuning" - you will find usefull information.

If database can fit in memory - buy enough RAM. If database can not fit in memory - SSD will help. If this is not enough and database is read only - run 2, 3 or more servers. Or partition database (in the best case to fit in memory of each server).

Even if queries are generated I think they will not be random. Monitor database for slow queries and improve only them.