On Tue, Nov 10, 2020 at 1:15 PM Tom Lane <t...@sss.pgh.pa.us> wrote: > > Tomas Vondra <tomas.von...@enterprisedb.com> writes: > > That's unlikely, I think. The regression tests are constructed so that > > the estimates are stable. It's more likely this is some difference in > > rounding behavior, for example. > > The reported delta is in the actual row count, not an estimate. > How could that be subject to roundoff issues? And there's no > delta in the Append's inputs, so this seems like it's a flat-out > miss of a row count in EXPLAIN ANALYZE. > > > I wonder which msvc builds are used on > > the machines that fail/pass the tests, and if the compiler flags are the > > same. > > Yeah, this might be a fruitful way to figure out "what's different > from the buildfarm". > > regards, tom lane
Hmm..anyway I can help here? I don't believe I am using any special compile options. I am using VS 2019. The thing is, both systems I have use the same build. I call msvcvars to set up the environment: "%ProgramFiles(x86)%\Microsoft Visual Studio\2019\Enterprise\VC\Auxiliary\Build\vcvarsall.bat" amd64 I also saw some recent changes have been made around these tests, so I can try the latest too.
