Re: pg_upgrade test for binary compatibility of core data types

On Wed, Dec 16, 2020 at 11:22:23AM -0600, Justin Pryzby wrote:
> On Sun, Dec 06, 2020 at 12:02:48PM -0600, Justin Pryzby wrote:
> > I meant to notice if the binary format is accidentally changed again, which was
> > what happened here:
> > 7c15cef86 Base information_schema.sql_identifier domain on name, not varchar.
> >
> > I added a table to the regression tests so it's processed by pg_upgrade tests,
> > run like:
> >
> > | time make -C src/bin/pg_upgrade check oldsrc=`pwd`/11 oldbindir=`pwd`/11/tmp_install/usr/local/pgsql/bin
>
> Per cfbot, this avoids testing ::xml (support for which may not be enabled)
> And also now tests oid types.
>
> I think the per-version hacks should be grouped by logical change, rather than
> by version. Which I've started doing here.

rebased on 6df7a9698bb036610c1e8c6d375e1be38cb26d5f

--
Justin