Re: Greatest Common Divisor

On Fri, Jan 3, 2020 at 4:11 PM Alvaro Herrera <alvherre@2ndquadrant.com> wrote:
> Maybe a very simple solution is indeed to have a separate pg_math or
> pg_extra or whatever, which by default is *last* in the search_path.
> That would make a user's gcd() be chosen preferently, if one exists.

Then every time we add a function, or anything else, we can bikeshed
about whether it should go in pg_catalog or pg_extra!

FWIW, EnterpriseDB has something like this for Advanced Server, and it
actually adds a fair amount of complexity, much of it around
OverrideSearchPath. It's not unmanageable, but it's not trivial,
either.

-- 
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company