Hi,
For me 001_libpq_pipeline.pl doesn't reliably work on windows, because it
tries to add something to PATH, using unix syntax (vs ; used on windows).
$ENV{PATH} = "$ENV{TESTDIR}:$ENV{PATH}";
If the first two elements in PATH are something needed, this can cause the
test to fail... I'm surprised this doesn't cause problems on the buildfarm - a
plain
perl src\tools\msvc\vcregress.pl taptest src\test\modules\libpq_pipeline\
fails for me.
Greetings,
Andres Freund