Re: PG15 beta1 sort performance regression due to Generation context change

Tomas Vondra <tomas.vondra@enterprisedb.com> writes:
> ... My personal opinion is that it's a rare regression. Other
> optimization patches have similar rare regressions, except that David
> spent so much time investigating this one it seems more serious.

Yeah, this.  I fear we're making a mountain out of a molehill.  We have
committed many optimizations that win on average but possibly lose
in edge cases, and not worried too much about it.

            regards, tom lane