My problem I would like to be better at OLAP queries in addition to OLTP queries for my Postgres db. Currently, my OLAP queries clear my whole RAM with on disk reads and when these queries run I also have high CPU peaks, which makes me have a bigger instance then I have during regular hours. We use Postgres already so I would like to stick as close as possible to that.
The best thing - operationally (running something like starrocks seems new and complex) and cost-wise (red shift seems expensive) seems to be Clockhouse with the materialized database and Postgres wire compatible extension - or at I missing something? However, these are still marked experimental.
The option of additional read replica and tuning the parameters for OLAP seems to be quite expensive too, the RDS costs are high. And I could not have a significantly smaller replica to avoid replication sync? An additional wish for this change is decreasing the cost.