Re: Displaying and dumping of table access methods

> On Tue, Jan 8, 2019 at 6:34 PM Andres Freund <andres(at)anarazel(dot)de> wrote:
>
> On 2019-01-08 11:30:56 +0100, Peter Eisentraut wrote:
> > On 08/01/2019 00:56, Andres Freund wrote:
> > > A patch at [2] adds display of a table's access method to \d+ - but that
> > > means that running the tests with a different default table access
> > > method (e.g. using PGOPTIONS='-c default_table_access_method=...)
> > > there'll be a significant number of test failures, even though the test
> > > results did not meaningfully differ.
> >
> > For psql, a variable that hides the access method if it's the default.
>
> Yea, I think that seems the least contentious solution. Don't like it
> too much, but it seems better than the alternative. I wonder if we want
> one for multiple regression related issues, or whether one specifically
> about table AMs is more appropriate. I lean towards the latter.

Are there any similar existing regression related issues? If no, then probably
the latter indeed makes more sense.

> > > Similarly, if pg_dump starts to dump table access methods either
> > > unconditionally, or for all non-heap AMS, the pg_dump tests fail due to
> > > unimportant differences.
> >
> > For pg_dump, track and set the default_table_access_method setting
> > throughout the dump (similar to how default_with_oids was handled, I
> > believe).
>
> Yea, that's similar to that, and I think that makes sense.

Yes, sounds like a reasonable approach, I can proceed with it.