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

   >  -----Original Message-----
   >  From: Andrew Dunstan <andrew@dunslane.net>
   >  Sent: Sunday, August 22, 2021 17:27
   >  To: Tom Lane <tgl@sss.pgh.pa.us>; ldh@laurent-hasson.com
   >  Cc: Justin Pryzby <pryzby@telsasoft.com>; Ranier Vilela
   >  <ranier.vf@gmail.com>; pgsql-performance@postgresql.org
   >  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@laurent-hasson.com" <ldh@laurent-hasson.com> 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.