Re: [HACKERS] generated columns

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/
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