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
