On Mon, Jan 25, 2016 at 2:07 AM, Tom Lane <t...@sss.pgh.pa.us> wrote:
> Corey Huinker <corey.huin...@gmail.com> writes: > > Incidentally, is there a reason behind the tendency of internal functions > > to avoid parameter defaults in favor of multiple pg_proc entries? > > Yes: you can't specify defaults in pg_proc.h. > > We work around that where absolutely necessary, see the last part of > system_views.sql. But it's messy enough, and bug-prone enough, to be > better avoided --- for example, it's very easy for the redeclaration > in system_view.sql to forget a STRICT or other similar marking. > > Personally I'd say that every one of the existing cases that simply has > a default for the last argument was a bad idea, and would better have > been done in the traditional way with two pg_proc.h entries. > > regards, tom lane > ...which answers my follow up question where make_interval was getting the defaults I saw in the table but not the .h file. Thanks!
