Re: upgrade failure from 9.5 to head

On 2015-08-01 19:13:05 -0400, Noah Misch wrote:
> On Wed, Jul 29, 2015 at 04:42:55PM -0400, Andrew Dunstan wrote:
> > The next hump is this, in restoring contrib_regression_test_ddl_parse:
> >
> > pg_restore: creating FUNCTION "public"."text_w_default_in("cstring")"
> > pg_restore: [archiver (db)] Error while PROCESSING TOC:
> > pg_restore: [archiver (db)] Error from TOC entry 243; 1255 62534
> > FUNCTION text_w_default_in("cstring") buildfarm
> > pg_restore: [archiver (db)] could not execute query: ERROR: pg_type
> > OID value not set when in binary upgrade mode
> > Command was: CREATE FUNCTION "text_w_default_in"("cstring")
> > RETURNS "text_w_default"
> > LANGUAGE "internal" STABLE STRICT
> > AS $$texti...
> >
> > Is this worth bothering about, or should I simply remove the database before
> > trying to upgrade?
>
> That's a bug. The test_ddl_deparse suite leaves a shell type, which
> pg_upgrade fails to reproduce. Whether to have pg_upgrade support that or
> just error out cleanly is another question.

There seems little justification to not support shell types. We should
also add a shell type to the standard regression testing database,
they're "weird" enough that some increased exposure seems like a good
idea.