On Fri, Oct 9, 2020 at 05:44:57AM +0000, Daniel Westermann (DWE) wrote: > Hi Bruce, Tom, > > On Thu, Oct 8, 2020 at 03:43:32PM -0400, Tom Lane wrote: > >> "Daniel Westermann (DWE)" <daniel.westerm...@dbi-services.com> writes: > >> >> I was hoping someone more experienced with this would comment, but > >> >> seeing none, I will apply it in a day or two to all supported versions? > >> >> Have you tested this output back to 9.5? > >> > >> > I hoped that as well. No, I tested down to 9.6 because the change > >> > happened in 10. > >> > >> The patch assumes that parallel query is enabled, which is not true by > >> default before v10, so it should certainly not be applied before v10 > >> (at least not without significant revisions). > > Yes, the behavior change was in 10. Before 10 the example is fine, I would > not apply that to any prior version, otherwise the whole example needs to be > rewritten.
Agreed. -- Bruce Momjian <br...@momjian.us> https://momjian.us EnterpriseDB https://enterprisedb.com The usefulness of a cup is in its emptiness, Bruce Lee
