> -----Original Message----- > From: Andrew Dunstan <andrew@xxxxxxxxxxxx> > Sent: Sunday, August 22, 2021 17:27 > To: Tom Lane <tgl@xxxxxxxxxxxxx>; ldh@xxxxxxxxxxxxxxxxxx > Cc: Justin Pryzby <pryzby@xxxxxxxxxxxxx>; Ranier Vilela > <ranier.vf@xxxxxxxxx>; pgsql-performance@xxxxxxxxxxxxxx > Subject: Re: Big Performance drop of Exceptions in UDFs between V11.2 > and 13.4 > > > On 8/22/21 4:11 PM, Tom Lane wrote: > > "ldh@xxxxxxxxxxxxxxxxxx" <ldh@xxxxxxxxxxxxxxxxxx> writes: > >> I do have a Linux install of 13.3, and things work beautifully, so this is > definitely a Windows thing here that started in V12. > > It's good to have a box around it, but that's still a pretty large box > > :-(. > > > > I'm hoping that one of our Windows-using developers will see if they > > can reproduce this, and if so, try to bisect where it started. > > Not sure how to make further progress without that. > > > > > > > Can do. Assuming the assertion that it started in Release 12 is correct, I > should be able to find it by bisecting between the branch point for 12 > and the tip of that branch. That's a little over 20 probes by my > calculation. > > > cheers > > > andrew > > > -- > Andrew Dunstan > EDB: https://www.enterprisedb.com I tried it on 11.13 and 12.3. Is there a place where I could download 12.1 and 12.2 and test that? Is it worth it or you think you have all you need? Thanks, Laurent.