Обсуждение: pgsql: In pg_upgrade on Windows, check if the directory is writable by

In pg_upgrade on Windows, check if the directory is writable by actually
creating and removing a file because access() doesn't work on that
platform.

Backpatch to 9.1 where this check was added.

Branch
------
REL9_1_STABLE

Details
-------
http://git.postgresql.org/pg/commitdiff/7f4c34739b183b5cf4e9141e3b2e09b99bf7cbad

Modified Files
--------------
contrib/pg_upgrade/exec.c |   41 ++++++++++++++++++++++++++++++++---------
1 files changed, 32 insertions(+), 9 deletions(-)