On Tue, Nov 26, 2019 at 3:44 PM Thomas Munro <thomas.mu...@gmail.com> wrote: > I suppose another reason to use such a switch would be if there is a > change in the versioning scheme; for example, as of today in master we > are using the glibc version, but a future glibc release might offer an > interface to query the CLDR version it's using, and then a future > release of PostgreSQL might get support for that, so the strings would > change between major version of PostgreSQL but you might want to be > able to tell pg_upgrade that your indexes are good.
Yeah, I like #3 too. If we're going to the trouble to build all of this mechanism, it seems worth it to build the additional machinery to be precise about the difference between "looks like a problem" and "we don't know". -- Robert Haas EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company
