Re: Big Performance drop of Exceptions in UDFs between V11.2 and 13.4

From: Julien Rouhaud <rjuju123(at)gmail(dot)com>
To: "ldh(at)laurent-hasson(dot)com" <ldh(at)laurent-hasson(dot)com>
Cc: Andrew Dunstan <andrew(at)dunslane(dot)net>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Ranier Vilela <ranier(dot)vf(at)gmail(dot)com>, Justin Pryzby <pryzby(at)telsasoft(dot)com>, "pgsql-performance(at)postgresql(dot)org" <pgsql-performance(at)postgresql(dot)org>
Subject: Re: Big Performance drop of Exceptions in UDFs between V11.2 and 13.4
Date: 2021-08-31 15:37:33
Message-ID: CAOBaU_aqbiG9rFtoGUdEY2NvAcoKizKsfOY3V1VDqrRxeLiTXQ@mail.gmail.com
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On Tue, Aug 31, 2021 at 10:51 PM ldh(at)laurent-hasson(dot)com
<ldh(at)laurent-hasson(dot)com> wrote:
>
> OK... I thought that track had been abandoned as per Julien's last message. Anyways, I'll be patient!
>

I just happened to have both standard installer and locally compiled
versions available, so I could confirm that I reproduced the problem
at least with the standard installer. Note that my message also said
" if default build on windows has NLS included". After looking a bit
more into the Windows build system, I confirm that NLS isn't included
by default so this is not the problem, as Andrew said.

After installing gettext and a few other dependencies, adapting
config.pl I wish I could also confirm being able to reproduce the
problem on my build, but apparently I'm missing something as I can't
get any modification in config.pl have any effect. I'm not gonna
waste more time on that since Andrew is already in the middle of the
investigation.

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