Andres Freund <andres(at)anarazel(dot)de> writes:
> On 2018-06-06 21:25:14 +0100, Andrew Gierth wrote:
>> The obvious case which is not one of those "pretty much all cases" is
>> where DirectFunctionCallN[Coll] is used - which turns out to be not all
>> that unusual.
> There the callsite just lives for just one call, I don't really see that
> being an exception?
The problem with your proposal, for that case, is that there's no FmgrInfo
to put the collation into.
regards, tom lane