Re: Reduce TupleHashEntryData struct size by half

Hi,

I was looking at this code recently and noticed the following.
Although the commit [1] removed the ->additional field, some function
comments were not updated to reflect this, so now they seemed a bit
stale.

1. BuildTupleHashTable(...) still says:
----------
...
 * additionalsize: size of data stored in ->additional
...
----------


2. Simiarly, LookupTupleHashEntry(...) still says:
----------
...
 * false if it existed already.  ->additional_data in the new entry has
 * been zeroed.
...
----------

======
[1] https://github.com/postgres/postgres/commit/626df47ad9db809dc8f93330175ab95b75914721

Kind Regards,
Peter Smith.
Fujitsu Australia