The following bug has been logged online:
Bug reference: 2484
Logged by: Yu-Lung Shao
Email address: allen_shao(at)seed(dot)net(dot)tw
PostgreSQL version: 8.1.4-1
Operating system: WinXP Home
Description: pg_dump not support < redirect
Details:
file: backup.cmd
pg_dump.exe dbname -U postgres -W -f dbname.sql <
password.txt
in 8.0.3 is work
in 8.1.4 is not work need manual key in password.