Great, thank you. I noticed in the CF patch tester app, the build
fails on Windows [1]. Investigating, I realized I had failed to fully
strip volatile EXPLAIN info (namely buffers) in TEXT mode due to a
bad regexp_replace. I've fixed this in the attached patch (which I
also rebased against current master again).
[1]: https://ci.appveyor.com/project/postgresql-cfbot/postgresql/build/1.0.76313