On Wed, 2022-11-30 at 10:52 +1300, Thomas Munro wrote: > On Wed, Nov 30, 2022 at 8:38 AM Jeff Davis <pg...@j-davis.com> wrote: > > On Tue, 2022-11-29 at 10:46 -0800, Jeff Davis wrote: > > > One bit of weirdness is that I may have found another ICU > > > problem. > > > > Reported as: > > > > https://unicode-org.atlassian.net/browse/ICU-22216 > > I'm no expert on loader/linker arcana but I have a feeling this is a > dead end. It's an ancient Unix or at least elf-era Unix convention > that SONAMEs have major versions only, because major versions are the > basis of ABI stability.
It's possible that it's more a problem of how they are doing it: the specific version is coming from a dependency rather than the library itself. The results are surprising, so I figured it's worth a report. Let's see what they say. Regardless, even if they did make a change, it's not going to help us anytime soon. We can't rely on any scheme that involves multiple minor versions for a single major version being installed at once. That means that, if you create a collation depending on ICU X.Y, and then it gets upgraded to X.(Y+1), and you create another collation depending on that library version, you are stuck. -- Jeff Davis PostgreSQL Contributor Team - AWS
