On 2019-02-26 06:12, Michael Paquier wrote: > Hm. Does the SQL standard mention more features which could be merged > with stored values, virtual values, default expressions and identity > columns? I don't know the last trends in this area but I am wondering > if there are any other column specific, expression-like features like > that associated to a column. That could give more strength with > having one column in pg_attribute to govern them all. Well, assuming > that something else is implemented of course. That's a lot of > assumptions, and it's not like the current implementation is wrong > either.
The system-versioned tables feature might be the most adjacent one. -- Peter Eisentraut http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services