Michael Paquier wrote:
> On Thu, Jul 20, 2017 at 4:04 PM, Alvaro Herrera
> <alvhe...@2ndquadrant.com> wrote:
> > I think the addition of checks everywhere for NULL return is worse.
> > Let's add a missing_ok flag instead, so that most callers can just trust
> > that they get a non null value if they don't want to deal with that
> > case.
> If you want to minimize the diffs or such a patch, we could as well
> have an extended version of those APIs. I don't think that for the
> addition of one argument like a missing_ok that's the way to go, but
> some people may like that to make this patch less intrusive.

I think minimizing API churn is worthwhile in some cases but not all.
These functions seem fringe enough that not having an API-compatible
version is unnecessary.  But that's just my opinion.

Álvaro Herrera                https://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services

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