[OPEN-ILS-DEV] Time to increase the minimum required version of PostgreSQL?

[Jason Stephenson]

Galen, et al.,

I think it is too soon to require Pg 10. While we advertise Evergreen as
working with Pg 10, we don't actually install it on Ubnuntu 18.04 via
the prerequisites.  We install Pg 9.6 instead.

We've found a few places already where set returning functions have
caused us hangups in Pg 10.  I suspect that there are more of these
hanging about in the database and in the storage and possibly other
code.  I've been meaning to do a lot more testing with Pg 10 lately, but
I've been busy with other things as well.

I think we should add a more comprehensive test suite to exercise all of
the database code, including that in the Perl.  I know this overly
ambitious, and I don't have a lot of time to spare to work on it,
myself, so it's easy to say, isn't it?

Anyway, I don't have a problem with making Pg 9.6 the minimum required
version for Evergreen 3.4, even thought that means that I will have to
upgrade Pg as well.

Just my thoughts,
Jason