issue: pg_stat_activity report in 2 hours hundred thousands of DB queries, instead use window customization in cache memory. At first look by - we identify no caching implemented over window customisations. The purpose of this effort is to identify how caching can be implemented, and as this is important done it before release 8.1.
I assume when each window opening runs also window customizations (we are using it frequently), this should waste of DB CPU time and makes ZK reaction slower. Also i assume significant performance can be achieved by this issue improvement.
private implementation, postgres 11.8 7.1z state sept 2. 2020