pgsql: Disable abbreviated keys on Windows.

Disable abbreviated keys on Windows.

Most of the Windows buildfarm members (bowerbird, hamerkop, currawong,
jacana, brolga) are unhappy with yesterday's abbreviated keys patch,
although there are some (narwhal, frogmouth) that seem OK with it.
Since there's no obvious pattern to explain why some are working and
others are failing, just disable this across-the-board on Windows for
now. This is a bit unfortunate since the optimization will be a big
win in some cases, but we can't leave the buildfarm broken.

Branch
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master

Details
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http://git.postgresql.org/pg/commitdiff/1be4eb1b2d436d1375899c74e4c74486890d8777

Modified Files
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src/backend/utils/adt/varlena.c | 12 ++++++++++--
1 file changed, 10 insertions(+), 2 deletions(-)