Re: pgsql: Deduplicate choice of horizon for a relation procarray.c.

Greetings,

* Andres Freund (andres(at)anarazel(dot)de) wrote:
> As the code in question was only introduced in dc7420c2c92 it seems worth
> backpatching this change as well, otherwise 14 will look different from all
> other branches.

Interestingly, these patches ended up actually introducing a difference
between 14 and master in the form of:

GlobalVisTestFor(Relation rel)

- GlobalVisState *state;
+ GlobalVisState *state = NULL;

being done on master but not in the 14 stable branch, leading to, at
least for me:

.../src/backend/storage/ipc/procarray.c: In function ‘GlobalVisTestFor’:
.../src/backend/storage/ipc/procarray.c:4054:9: warning: ‘state’ may be used uninitialized in this function [-Wmaybe-uninitialized]
4054 | return state;
| ^~~~~

Seems like we should include that change in 14 too, to get rid of the
above warning and to make that bit of code the same too..?

Thanks!

Stephen