The following bug has been logged on the website:
Bug reference: 8097
Logged by: Wouter Boasson
Email address: wouter(dot)boasson(at)rivm(dot)nl
PostgreSQL version: 9.1.9
Operating system: Scientific Linux 6.1 32bit
Description:
pg_dump produces incomplete data dumps for large tables in directory mode
(-Fd).
The maximum output file size seems to be 2147483647 bytes (2GB), when
setting --compress=0 the output seems to be complete (uncompressed size 5GB
and 20GB).
When making the dump, no error is displayed, which makes this a dangerous
bug in disaster recovery scenario's, only when restoring error's are
displayed (incomplete/no data).