Robert Haas <robertmh...@gmail.com> writes: > On Mon, Mar 22, 2021 at 11:48 AM Tom Lane <t...@sss.pgh.pa.us> wrote: >> Possibly the former names should survive and the latter become >> wrappers around them, not sure. But we shouldn't be using the "4B" >> terminology anyplace except this part of postgres.h.
> I would argue that it shouldn't be used any place at all, and that we > ought to go the other direction and get rid of the existing macros - > e.g. change #define VARATT_IS_1B_E to #define VARATT_IS_EXTERNAL > instead of defining the latter as a no-value-added wrapper around the > former. Maybe at one time somebody thought that the test for > VARATT_IS_EXTERNAL might someday have more cases than just > VARATT_IS_1B_E, but that's not looking like a good bet in 2021. Maybe. I think the original idea was exactly what the comment says, to have a layer of macros that'd deal with endianness issues and no more. That still seems like a reasonable plan to me, though perhaps it wasn't executed very well. regards, tom lane