Re: [PATCH] Add CANONICAL option to xmlserialize

On 05.03.23 22:00, Thomas Munro wrote:
> The CI run for that failed in an interesting way, only on Debian +
> Meson, 32 bit.  The diffs appear to show that psql has a different
> opinion of the column width, while building its header (the "------"
> you get at the top of psql's output), even though the actual column
> contents was the same.  regression.diff[2] shows that there is a "£1"
> in the output, which is how UTF-8 "£1" looks if you view it with
> Latin1 glasses on.  Clearly this patch involves transcoding, Latin1
> and UTF-8
One of the use cases of this patch is exactly the transcoding of a non 
utf-8 document to utf-8 - as described in the XML canonical spec.
> and I haven't studied it, but it's pretty weird for the 32
> bit build to give a different result...
Yeah, it's pretty weird indeed. I'll try to reproduce this environment 
in a container to see if I get the same diff. Although I'm not sure that 
by "fixing" the result set for this environment it won't break all the 
others.
> could be something to do with
> our environment, since .cirrus.yml sets LANG=C in the 32 bit test run
> -- maybe try that locally?
Also using LANGUAGE=C the result is the same for me - all tests pass 
just fine.
> That run also generated a core dump, but I think that's just our open
> SIGQUIT problem[3] and not relevant here.
>
> [1] https://cirrus-ci.com/build/6319462375227392
> [2]
https://api.cirrus-ci.com/v1/artifact/task/5800598633709568/testrun/build-32/testrun/regress/regress/regression.diffs
> [3] https://www.postgresql.org/message-id/flat/20230214202927.xgb2w6b7gnhq6tvv%40awork3.anarazel.de

Thanks for the quick reply. Much appreciated!