Re: Fix for segfault in logical replication on master

On Fri, Jun 18, 2021 at 9:18 AM Amit Kapila <amit.kapila16@gmail.com> wrote:
>
> > I thought it was cheap enough to check that the relation we open is an index, because if it is not, we'll segfault
whenaccessing fields of the relation->rd_index struct.  I wouldn't necessarily advocate doing any really expensive
checkshere, but a quick sanity check seemed worth the effort. 
> >
>
> I am not telling you anything about the cost of these sanity checks. I
> suggest you raise elog rather than return NULL because if this happens
> there is definitely some problem and continuing won't be a good idea.
>

Pushed, after making the above change. Additionally, I have moved the
test case to the existing file 001_rep_changes instead of creating a
new one as the test seems to fit there and I was not sure if the test
for just this case deserves a new file.

--
With Regards,
Amit Kapila.