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. Regards Daniel
