Re: PG 15 (and to a smaller degree 14) regression due to ExprEvalStep size

Andres Freund <andres@anarazel.de> writes:
> However, jsonexpr/EEOP_JSONEXPR is 296 bytes, and
> hashedscalararrayop/EEOP_HASHED_SCALARARRAYOP is 64 bytes, even though the
> limit is 40 bytes.

Oops.

> Maybe it's worth sticking a StaticAssert() for the struct size
> somewhere.

Indeed.  I thought we had one already.

> I'm a bit wary about that being too noisy, there are some machines with
> odd alignment requirements. Perhaps worth restricting the assertion to
> x86-64 + armv8 or such?

I'd put it in first and only reconsider if it shows unfixable problems.

            regards, tom lane