David Rowley <dgrowle...@gmail.com> writes: > On Fri, Oct 17, 2014 at 3:34 AM, Tom Lane <t...@sss.pgh.pa.us> wrote: >> I don't want to go there. It would be a lot better to expend the effort >> on a better regression testing infrastructure that wouldn't *need* >> bitwise-identical output across platforms. (mysql is ahead of us in that >> department: they have some hacks for selective matching of the output.)
> Perhaps we could introduce some sort of wildcard matching in the regression > tests. So that we could stick something like: > Execution time: * ms > Into the expected results, though, probably we'd need to come up with some > wildcard character which is a bit less common than * I was imagining that we might as well allow regexp matching, so you could be as specific as Execution time: \d+\.\d+ ms if you had a mind to. But with or without that, it would be difficult to pick a meta-character that never appears in expected-output files today. What we'd probably want to do (again, I'm stealing ideas from what I remember of the mysql regression tests) is add metasyntax to switch between literal and wildcard/regexp matching. So perhaps an expected file could contain something like -- !!match regexp ... expected output including regexps ... -- !!match literal ... normal expected output here Not sure how we get there without writing our own diff engine though :-(. regards, tom lane -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers