Re: performance degredation after upgrade from 9.6 to 12

Hey Jeff,
This example was only used to show that pg96  had better perfomance than
pg12 in a very simple case.
 In all the tests that I run most of the queries took less time on 9.6`s
version.  I dont know why, but as you can see after disabling the parameter
the simple test that I did showed different results.  I intend to test this
theory tomorrow. I'm going to disable the parameter and run the same
application flows that I have on both machines (9.6 vs 12 with zero value
for the param).

I didnt send this mail after doing just one simple test, I have more than
100 queries that work better on 9.6 . If u have any explanation I will be
happy to hear.
I'll update tomorrow once I'll have the results..