On mån, 2012-01-09 at 14:04 -0500, Tom Lane wrote:
> #ifdef CATALOG_VARLEN /* variable-length fields start here
> */
>
> to be even clearer.
>
> What would be appropriate to add instead of those inconsistently-used
> comments is explicit comments about the exception cases such as
> proargtypes, to make it clear that the placement of the #ifdef
> CATALOG_VARLEN is intentional and not a bug in those cases.
>
I implemented your suggestions in the attached patch.