The following documentation comment has been logged on the website: Page: https://www.postgresql.org/docs/12/rules-views.html Description:
Nowhere in the documentation is mentioned that rules can only be made on tables without dropped columns and, much to my suprise, on empty tables only. I wanted to use rules on existing tables to cater for column-redaction, but this seems only possible by creating a new (empty) table for all user to use and to hide the original table from everyone. 1. the documentation should state this (and not start with an example of use of rules in views, which is a special case, I though). 2. the implementation should fix the only-on-empty tables issue (avoiding having to change the documentation).