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

From: Andrew Dunstan <andrew(at)dunslane(dot)net>
To: "ldh(at)laurent-hasson(dot)com" <ldh(at)laurent-hasson(dot)com>, Julien Rouhaud <rjuju123(at)gmail(dot)com>
Cc: 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 13:40:12
Message-ID: 68e654db-f345-7665-7f3e-25713de730ba@dunslane.net
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On 8/30/21 10:18 PM, ldh(at)laurent-hasson(dot)com wrote:
> > I see on https://www.postgresql.org/download/ that there is a different
> > installer from 2ndQuadrant. I am going to try that one and see what I
> > come up with. Are there any other "standard" distros of Postgres that I
> > could try out?
> >
> > I found out I could download Visual Studio community edition so I am
> > trying this, but may not have the time to get through a build any time
> > soon as per my unfamiliarity with the process. I'll follow Ranier's steps
> > and see if that gets me somewhere.
> >
> > Thank you,
> > Laurent.
>
>
> Hello all,
>
> I think I had a breakthrough. I tried to create a local build and wasn't able to. But I downloaded the 2nd Quadrant installer and the issue disappeared!!! I think this is proof that it's not my personal environment, nor something intrinsic in the codebase, but definitely something in the standard EDB installer.
>
>

No, you're on the wrong track. As I reported earlier, I have reproduced
this issue with a vanilla build which has no installer involvement
whatsoever.

I'm pretty sure the reason you are not seeing this with the 2ndQuadrant
installer is quite simple: it wasn't build with NLS support.

Let me repeat what I said earlier. I will get to the bottom of this.
Please be patient and stop running after red herrings.

cheers

andrew

--
Andrew Dunstan
EDB: https://www.enterprisedb.com

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