Thread: pgsql: Fix new auto_explain test case for Windows.

Fix new auto_explain test case for Windows.

In commit 7c34555f8, I overlooked the need to configure SSPI
on Windows to allow login as the non-superuser role.
Fix that by adding auth_extra/--create-role incantation
(which, oddly enough, doesn't actually create the role).
Per buildfarm.

While here, upgrade the mechanism for temporarily setting
$ENV{PGUSER}, as per recommendation from ilmari.

Discussion: https://postgr.es/m/87edy7j1zz.fsf@wibble.ilmari.org

Branch
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REL_15_STABLE

Details
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https://git.postgresql.org/pg/commitdiff/1d01d198536f24995f2d5271f55c73be644438fc

Modified Files
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contrib/auto_explain/t/001_auto_explain.pl | 39 +++++++++++++++---------------
1 file changed, 20 insertions(+), 19 deletions(-)