On 27 Feb 2011, at 9:49, Aleksey Tsalolikhin wrote: > Database versions are identical: > A: PostgreSQL 8.4.4 on x86_64-redhat-linux-gnu, compiled by GCC gcc > (GCC) 4.1.2 20080704 (Red Hat 4.1.2-46), 64-bit > B: PostgreSQL 8.4.4 on x86_64-redhat-linux-gnu, compiled by GCC gcc > (GCC) 4.1.2 20080704 (Red Hat 4.1.2-46), 64-bit > > > Character encoding of the source and target databases are identical: > UTF8. (As reported by "psql -l".) I noticed in your table definition that you seem to store timestamps in text-fields. Restoring those from text-fields shouldn't make any difference, but perhaps your locales are set up differently between the machines and cause some type of conversion to take place? I know, that's a pretty wild guess. > When I pg_dump the 50 GB table, I get a 40 GB file. > > When I pg_dump the 100 GB table, I get a 40 GB file. I think the possible causes of the problem being with the database have been rather exhausted by now. Maybe the difference is in how the OS was set-up on each system. So, more questions: What type of file-system are you using on each database (for the table in question)? Are these filesystems configured identically, or does one perhaps have a different block-size than the other? Is it set up as a raid array? If so, which raid-level? Are your dumps going to that same file-system, or to a different one? Alban Hertroys -- Screwing up is an excellent way to attach something to the ceiling. !DSPAM:737,4d6a2d1b11731601256477! -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general