Peter Eisentraut <peter(dot)eisentraut(at)2ndquadrant(dot)com> writes:
> On 10/31/17 14:23, Tom Lane wrote:
>> Why not use VOIDOID for the prorettype value?
> We need a way to distinguish functions that are callable by SELECT and
> procedures that are callable by CALL.
Do procedures of this ilk belong in pg_proc at all? It seems like a large
fraction of the attributes tracked in pg_proc are senseless for this
purpose. A new catalog might be a better approach.
In any case, I buy none of your arguments that 0 is a better choice than a
new pseudotype.
regards, tom lane