Log Message:
-----------
On Win32, make minimum setitimer() sleep be 1ms, so sleeps < 1ms aren't
rounded down to zero.
Backpatch to 8.1.X.
Modified Files:
--------------
pgsql/src/backend/port/win32:
timer.c (r1.10 -> r1.11)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/port/win32/timer.c.diff?r1=1.10&r2=1.11)