On Wed, Dec 7, 2022 at 12:17 PM Tom Lane <t...@sss.pgh.pa.us> wrote: > Corey Huinker <corey.huin...@gmail.com> writes: > > In my attempt to implement CAST...DEFAULT, I noticed that I immediately > > needed an > > OidInputFunctionCallSafe, which was trivial but maybe something we want > to > > add to the infra patch, but the comments around that function also > somewhat > > indicate that we might want to just do the work in-place and call > > InputFunctionCallSafe directly. Open to both ideas. > > I'm a bit skeptical of that. IMO using OidInputFunctionCall is only > appropriate in places that will be executed just once per query. >
That is what's happening when the expr of the existing CAST ( expr AS typename ) is a constant and we want to just resolve the constant at parse time. > >
