Thread: pgsql: pg_upgrade: fix CopyFile() on Windows to fail on file existence

pg_upgrade:  fix CopyFile() on Windows to fail on file existence

Also fix getErrorText() to return the right error string on failure.
This behavior now matches that of other operating systems.

Report by Noah Misch

Backpatch through 9.1

Branch
------
REL9_1_STABLE

Details
-------
http://git.postgresql.org/pg/commitdiff/c36064e438c738fb305919874f22ef1e9b755a63

Modified Files
--------------
contrib/pg_upgrade/file.c |    2 +-
contrib/pg_upgrade/util.c |    2 ++
2 files changed, 3 insertions(+), 1 deletion(-)