(2019/03/11 23:46), Tom Lane wrote:
So this is
just a plan-quality problem not a wrong-answer problem.
However, I'd still argue for back-patching into v11, on the grounds
that this is a regression from v10. The example you just gave does
produce the desired plan in v10, and I think it's more likely that
people would complain about a regression from v10 than that they'd
be unhappy because we changed it between 11.2 and 11.3.
Agreed. I committed the patch to v11 and HEAD. Thanks for reviewing!
Best regards,
Etsuro Fujita
